console-frontend: add settings management UI and device API integration

Signed-off-by: YoungSoo Shin <shinys000114@gmail.com>
(WIP) console-frontend: initial implementation of TUI dashboard, API client, WebSocket handling, and protocol buffer support
2025-12-12 18:40:24 +09:00 · 2025-12-12 18:31:20 +09:00
19 changed files with 1686 additions and 1754 deletions
--- a/example/console-frontend/go.mod
+++ b/example/console-frontend/go.mod
@@ -0,0 +1,35 @@
+module console-frontend
+
+go 1.24.0
+
+toolchain go1.24.11
+
+require (
+	github.com/charmbracelet/bubbles v0.21.0
+	github.com/charmbracelet/bubbletea v1.3.10
+	github.com/charmbracelet/lipgloss v1.1.0
+	github.com/gorilla/websocket v1.5.3
+	google.golang.org/protobuf v1.36.10
+)
+
+require (
+	github.com/atotto/clipboard v0.1.4 // indirect
+	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
+	github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc // indirect
+	github.com/charmbracelet/x/ansi v0.10.1 // indirect
+	github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd // indirect
+	github.com/charmbracelet/x/term v0.2.1 // indirect
+	github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
+	github.com/hinshun/vt10x v0.0.0-20220301184237-5011da428d02 // indirect
+	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mattn/go-localereader v0.0.1 // indirect
+	github.com/mattn/go-runewidth v0.0.16 // indirect
+	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
+	github.com/muesli/cancelreader v0.2.2 // indirect
+	github.com/muesli/termenv v0.16.0 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
+	golang.org/x/sys v0.36.0 // indirect
+	golang.org/x/text v0.3.8 // indirect
+)
--- a/example/console-frontend/go.sum
+++ b/example/console-frontend/go.sum
@@ -0,0 +1,55 @@
+github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
+github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
+github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
+github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
+github.com/charmbracelet/bubbles v0.21.0 h1:9TdC97SdRVg/1aaXNVWfFH3nnLAwOXr8Fn6u6mfQdFs=
+github.com/charmbracelet/bubbles v0.21.0/go.mod h1:HF+v6QUR4HkEpz62dx7ym2xc71/KBHg+zKwJtMw+qtg=
+github.com/charmbracelet/bubbletea v1.3.10 h1:otUDHWMMzQSB0Pkc87rm691KZ3SWa4KUlvF9nRvCICw=
+github.com/charmbracelet/bubbletea v1.3.10/go.mod h1:ORQfo0fk8U+po9VaNvnV95UPWA1BitP1E0N6xJPlHr4=
+github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc h1:4pZI35227imm7yK2bGPcfpFEmuY1gc2YSTShr4iJBfs=
+github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc/go.mod h1:X4/0JoqgTIPSFcRA/P6INZzIuyqdFY5rm8tb41s9okk=
+github.com/charmbracelet/lipgloss v1.1.0 h1:vYXsiLHVkK7fp74RkV7b2kq9+zDLoEU4MZoFqR/noCY=
+github.com/charmbracelet/lipgloss v1.1.0/go.mod h1:/6Q8FR2o+kj8rz4Dq0zQc3vYf7X+B0binUUBwA0aL30=
+github.com/charmbracelet/x/ansi v0.10.1 h1:rL3Koar5XvX0pHGfovN03f5cxLbCF2YvLeyz7D2jVDQ=
+github.com/charmbracelet/x/ansi v0.10.1/go.mod h1:3RQDQ6lDnROptfpWuUVIUG64bD2g2BgntdxH0Ya5TeE=
+github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd h1:vy0GVL4jeHEwG5YOXDmi86oYw2yuYUGqz6a8sLwg0X8=
+github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd/go.mod h1:xe0nKWGd3eJgtqZRaN9RjMtK7xUYchjzPr7q6kcvCCs=
+github.com/charmbracelet/x/term v0.2.1 h1:AQeHeLZ1OqSXhrAWpYUtZyX1T3zVxfpZuEQMIQaGIAQ=
+github.com/charmbracelet/x/term v0.2.1/go.mod h1:oQ4enTYFV7QN4m0i9mzHrViD7TQKvNEEkHUMCmsxdUg=
+github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f h1:Y/CXytFA4m6baUTXGLOoWe4PQhGxaX0KpnayAqC48p4=
+github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f/go.mod h1:vw97MGsxSvLiUE2X8qFplwetxpGLQrlU1Q9AUEIzCaM=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
+github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/hinshun/vt10x v0.0.0-20220301184237-5011da428d02 h1:AgcIVYPa6XJnU3phs104wLj8l5GEththEw6+F79YsIY=
+github.com/hinshun/vt10x v0.0.0-20220301184237-5011da428d02/go.mod h1:Q48J4R4DvxnHolD5P8pOtXigYlRuPLGl6moFx3ulM68=
+github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
+github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/mattn/go-localereader v0.0.1 h1:ygSAOl7ZXTx4RdPYinUpg6W99U8jWvWi9Ye2JC/oIi4=
+github.com/mattn/go-localereader v0.0.1/go.mod h1:8fBrzywKY7BI3czFoHkuzRoWE9C+EiG4R1k4Cjx5p88=
+github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
+github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 h1:ZK8zHtRHOkbHy6Mmr5D264iyp3TiX5OmNcI5cIARiQI=
+github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6/go.mod h1:CJlz5H+gyd6CUWT45Oy4q24RdLyn7Md9Vj2/ldJBSIo=
+github.com/muesli/cancelreader v0.2.2 h1:3I4Kt4BQjOR54NavqnDogx/MIoWBFa0StPA8ELUXHmA=
+github.com/muesli/cancelreader v0.2.2/go.mod h1:3XuTXfFS2VjM+HTLZY9Ak0l6eUKfijIfMUZ4EgX0QYo=
+github.com/muesli/termenv v0.16.0 h1:S5AlUN9dENB57rsbnkPyfdGuWIlkmzJjbFf0Tf5FWUc=
+github.com/muesli/termenv v0.16.0/go.mod h1:ZRfOIKPFDYQoDFF4Olj7/QJbW60Ol/kL1pU3VfY/Cnk=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
+github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
+github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
+github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM=
+golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561 h1:MDc5xs78ZrZr3HMQugiXOAkSZtfTpbJLDr/lwfgO53E=
+golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561/go.mod h1:cyybsKvd6eL0RnXn6p/Grxp8F5bW7iYuBgsNCOHpMYE=
+golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.36.0 h1:KVRy2GtZBrk1cBYA7MKu5bEZFxQk4NIDV6RLVcC8o0k=
+golang.org/x/sys v0.36.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/text v0.3.8 h1:nAL+RVCQ9uMn3vJZbV+MRnydTJFPf8qqY42YiA6MrqY=
+golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
+google.golang.org/protobuf v1.36.10 h1:AYd7cD/uASjIL6Q9LiTjz8JLcrh/88q5UObnmY3aOOE=
+google.golang.org/protobuf v1.36.10/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
--- a/example/console-frontend/main.go
+++ b/example/console-frontend/main.go
@@ -0,0 +1,909 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+
+	"console-frontend/pb"
+
+	"github.com/charmbracelet/bubbles/textinput"
+	"github.com/charmbracelet/bubbles/viewport"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/gorilla/websocket"
+	"github.com/hinshun/vt10x"
+	"google.golang.org/protobuf/proto"
+)
+
+// --- Configuration ---
+const DefaultBaseURL = "http://192.168.4.1"
+
+// Global HTTP Client for reuse
+var httpClient = &http.Client{
+	Timeout: 5 * time.Second,
+}
+
+// --- Styles ---
+var (
+	titleStyle = lipgloss.NewStyle().
+			Foreground(lipgloss.Color("#FFFDF5")).
+			Background(lipgloss.Color("#25A065")).
+			Padding(0, 1)
+
+	infoStyle = lipgloss.NewStyle().
+			Foreground(lipgloss.Color("#FFFDF5")).
+			Padding(0, 1)
+
+	headerStyle = lipgloss.NewStyle().
+			Foreground(lipgloss.Color("205")).
+			Bold(true)
+
+	statusBarStyle = lipgloss.NewStyle().
+			Foreground(lipgloss.Color("#FFFDF5")).
+			Background(lipgloss.Color("#3C3C3C")).
+			Padding(0, 1)
+
+	commandModeStyle = lipgloss.NewStyle().
+				Foreground(lipgloss.Color("#000000")).
+				Background(lipgloss.Color("#D75F00")).
+				Padding(0, 1).
+				Bold(true)
+
+	errorStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("196"))
+
+	// Help Window Style
+	helpBoxStyle = lipgloss.NewStyle().
+			Border(lipgloss.RoundedBorder()).
+			BorderForeground(lipgloss.Color("#874BFD")).
+			Padding(1, 2).
+			Background(lipgloss.Color("#1e1e1e"))
+
+	// Settings Style
+	settingItemStyle  = lipgloss.NewStyle().PaddingLeft(2)
+	selectedItemStyle = lipgloss.NewStyle().PaddingLeft(0).Foreground(lipgloss.Color("170")).Bold(true).SetString("> ")
+)
+
+// --- Messages ---
+type sessionMsg struct {
+	token string
+}
+
+type initStatusMsg struct {
+	mainOn bool
+	usbOn  bool
+}
+
+type settingsMsg struct {
+	settings DeviceSettings
+}
+
+type errMsg error
+
+type wsMsg *pb.StatusMessage
+
+// --- Data Structures ---
+
+// DeviceSettings maps to GET/POST /api/setting
+type DeviceSettings struct {
+	VinCurrentLimit  float64 `json:"vin_current_limit,omitempty"`
+	MainCurrentLimit float64 `json:"main_current_limit,omitempty"`
+	UsbCurrentLimit  float64 `json:"usb_current_limit,omitempty"`
+	BaudRate         int     `json:"baud_rate,omitempty"`
+	SensorPeriod     int     `json:"sensor_period,omitempty"`
+}
+
+// --- API Client ---
+type LoginRequest struct {
+	Username string `json:"username"`
+	Password string `json:"password"`
+}
+
+type LoginResponse struct {
+	Token string `json:"token"`
+}
+
+type ControlRequest struct {
+	Load12vOn    *bool `json:"load_12v_on,omitempty"`
+	Load5vOn     *bool `json:"load_5v_on,omitempty"`
+	PowerTrigger *bool `json:"power_trigger,omitempty"`
+	ResetTrigger *bool `json:"reset_trigger,omitempty"`
+}
+
+type ControlStatusResponse struct {
+	Load12vOn bool `json:"load_12v_on"`
+	Load5vOn  bool `json:"load_5v_on"`
+}
+
+func login(baseURL, username, password string) tea.Cmd {
+	return func() tea.Msg {
+		baseURL = strings.TrimRight(baseURL, "/")
+		reqBody, _ := json.Marshal(LoginRequest{Username: username, Password: password})
+		resp, err := httpClient.Post(baseURL+"/login", "application/json", bytes.NewBuffer(reqBody))
+		if err != nil {
+			return errMsg(err)
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != 200 {
+			body, _ := io.ReadAll(resp.Body)
+			return errMsg(fmt.Errorf("login failed: %s", string(body)))
+		}
+
+		var loginResp LoginResponse
+		if err := json.NewDecoder(resp.Body).Decode(&loginResp); err != nil {
+			return errMsg(err)
+		}
+		return sessionMsg{token: loginResp.Token}
+	}
+}
+
+func fetchControlStatus(baseURL, token string) tea.Cmd {
+	return func() tea.Msg {
+		baseURL = strings.TrimRight(baseURL, "/")
+		req, _ := http.NewRequest("GET", baseURL+"/api/control", nil)
+		req.Header.Set("Authorization", "Bearer "+token)
+
+		resp, err := httpClient.Do(req)
+		if err != nil {
+			return errMsg(err)
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != 200 {
+			return errMsg(fmt.Errorf("failed to fetch status: %d", resp.StatusCode))
+		}
+
+		var statusResp ControlStatusResponse
+		if err := json.NewDecoder(resp.Body).Decode(&statusResp); err != nil {
+			return errMsg(err)
+		}
+
+		return initStatusMsg{
+			mainOn: statusResp.Load12vOn,
+			usbOn:  statusResp.Load5vOn,
+		}
+	}
+}
+
+func fetchDeviceSettings(baseURL, token string) tea.Cmd {
+	return func() tea.Msg {
+		baseURL = strings.TrimRight(baseURL, "/")
+		req, _ := http.NewRequest("GET", baseURL+"/api/setting", nil)
+		req.Header.Set("Authorization", "Bearer "+token)
+
+		resp, err := httpClient.Do(req)
+		if err != nil {
+			return errMsg(err)
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != 200 {
+			return errMsg(fmt.Errorf("failed to fetch settings: %d", resp.StatusCode))
+		}
+
+		var s DeviceSettings
+		if err := json.NewDecoder(resp.Body).Decode(&s); err != nil {
+			return errMsg(err)
+		}
+		return settingsMsg{settings: s}
+	}
+}
+
+func saveDeviceSetting(baseURL, token string, setting DeviceSettings) tea.Cmd {
+	return func() tea.Msg {
+		baseURL = strings.TrimRight(baseURL, "/")
+		reqBody, _ := json.Marshal(setting)
+		req, _ := http.NewRequest("POST", baseURL+"/api/setting", bytes.NewBuffer(reqBody))
+		req.Header.Set("Authorization", "Bearer "+token)
+		req.Header.Set("Content-Type", "application/json")
+
+		resp, err := httpClient.Do(req)
+		if err != nil {
+			return errMsg(err)
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != 200 {
+			return errMsg(fmt.Errorf("save failed: %d", resp.StatusCode))
+		}
+		// Refresh settings after save
+		return fetchDeviceSettings(baseURL, token)()
+	}
+}
+
+func rebootDevice(baseURL, token string) tea.Cmd {
+	return func() tea.Msg {
+		baseURL = strings.TrimRight(baseURL, "/")
+		req, _ := http.NewRequest("POST", baseURL+"/api/reboot", nil)
+		req.Header.Set("Authorization", "Bearer "+token)
+		httpClient.Do(req) // Don't wait for response too strictly as device reboots
+		return nil
+	}
+}
+
+func sendControl(baseURL, token string, payload ControlRequest) tea.Cmd {
+	return func() tea.Msg {
+		baseURL = strings.TrimRight(baseURL, "/")
+		reqBody, _ := json.Marshal(payload)
+		req, _ := http.NewRequest("POST", baseURL+"/api/control", bytes.NewBuffer(reqBody))
+		req.Header.Set("Authorization", "Bearer "+token)
+		req.Header.Set("Content-Type", "application/json")
+
+		resp, err := httpClient.Do(req)
+		if err != nil {
+			return errMsg(err)
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != 200 {
+			body, _ := io.ReadAll(resp.Body)
+			return errMsg(fmt.Errorf("control failed (%d): %s", resp.StatusCode, string(body)))
+		}
+
+		return nil
+	}
+}
+
+// --- WebSocket Handling ---
+func connectWebSocket(baseURL, token string, sendChan <-chan []byte) tea.Cmd {
+	return func() tea.Msg {
+		u, err := url.Parse(baseURL)
+		if err != nil {
+			return errMsg(err)
+		}
+		scheme := "ws"
+		if u.Scheme == "https" {
+			scheme = "wss"
+		}
+		wsURL := fmt.Sprintf("%s://%s/ws?token=%s", scheme, u.Host, token)
+
+		c, _, err := websocket.DefaultDialer.Dial(wsURL, nil)
+		if err != nil {
+			return errMsg(err)
+		}
+
+		go func() {
+			for data := range sendChan {
+				err := c.WriteMessage(websocket.BinaryMessage, data)
+				if err != nil {
+					return
+				}
+			}
+			c.Close()
+		}()
+
+		go func() {
+			defer c.Close()
+			for {
+				_, message, err := c.ReadMessage()
+				if err != nil {
+					return
+				}
+				var statusMsg pb.StatusMessage
+				if err := proto.Unmarshal(message, &statusMsg); err == nil {
+					program.Send(wsMsg(&statusMsg))
+				}
+			}
+		}()
+		return nil
+	}
+}
+
+var program *tea.Program
+
+// --- Model ---
+type state int
+
+const (
+	stateLogin state = iota
+	stateDashboard
+	stateSettings
+)
+
+// Setting Item Types
+const (
+	SetVinLimit = iota
+	SetMainLimit
+	SetUsbLimit
+	SetBaudRate
+	SetPeriod
+	SetReboot
+)
+
+type model struct {
+	state       state
+	baseURL     string
+	token       string
+	width       int
+	height      int
+	err         error
+
+	wsSend chan []byte
+
+	// Login
+	serverInput   textinput.Model
+	usernameInput textinput.Model
+	passwordInput textinput.Model
+	focusIndex    int
+
+	// Dashboard
+	sensorData      *pb.SensorData
+	wifiStatus      *pb.WifiStatus
+	swStatus        *pb.LoadSwStatus
+	term            vt10x.Terminal
+	logViewport     viewport.Model
+	awaitingCommand bool
+	lastStatusMsg   string
+
+	// Settings
+	deviceSettings DeviceSettings
+	settingCursor  int
+	settingEditing bool            // True if currently typing a value
+	settingInput   textinput.Model // Shared input for editing values
+}
+
+func initialModel() model {
+	s := textinput.New()
+	s.Placeholder = "http://192.168.4.1"
+	s.SetValue(DefaultBaseURL)
+	s.Focus()
+
+	u := textinput.New()
+	u.Placeholder = "Username"
+
+	p := textinput.New()
+	p.Placeholder = "Password"
+	p.EchoMode = textinput.EchoPassword
+
+	vp := viewport.New(80, 24)
+	vp.SetContent("Waiting for data...")
+
+	// vt10x 초기화 (Writer는 필요 없으므로 Discard)
+	term := vt10x.New(vt10x.WithWriter(io.Discard))
+	term.Resize(80, 24)
+
+	si := textinput.New()
+	si.CharLimit = 10
+
+	return model{
+		state:         stateLogin,
+		serverInput:   s,
+		usernameInput: u,
+		passwordInput: p,
+		logViewport:   vp,
+		term:          term,
+		swStatus:      &pb.LoadSwStatus{Main: false, Usb: false},
+		wsSend:        make(chan []byte, 100),
+		settingInput:  si,
+	}
+}
+
+func (m model) Init() tea.Cmd {
+	return textinput.Blink
+}
+
+func (m model) renderVt10x() string {
+	var sb strings.Builder
+	rows := m.logViewport.Height
+	cols := m.logViewport.Width
+	sb.Grow(rows * cols * 4)
+
+	cursor := m.term.Cursor()
+	curFG := vt10x.DefaultFG
+	curBG := vt10x.DefaultBG
+
+	sb.WriteString("\x1b[0m")
+
+	for y := 0; y < rows; y++ {
+		for x := 0; x < cols; x++ {
+			cell := m.term.Cell(x, y)
+
+			fg := cell.FG
+			bg := cell.BG
+			char := cell.Char
+			isCursor := (x == cursor.X && y == cursor.Y)
+
+			if fg != curFG || bg != curBG || isCursor {
+				sb.WriteString("\x1b[0m")
+				if isCursor {
+					sb.WriteString("\x1b[7m")
+				}
+				if fg != vt10x.DefaultFG {
+					fmt.Fprintf(&sb, "\x1b[38;5;%dm", fg)
+				}
+				if bg != vt10x.DefaultBG {
+					fmt.Fprintf(&sb, "\x1b[48;5;%dm", bg)
+				}
+				curFG = fg
+				curBG = bg
+
+				if isCursor {
+					curFG = vt10x.Color(65535)
+					curBG = vt10x.Color(65535)
+				}
+			}
+			sb.WriteRune(char)
+		}
+		if y < rows-1 {
+			sb.WriteString("\x1b[0m\n")
+			curFG = vt10x.DefaultFG
+			curBG = vt10x.DefaultBG
+		}
+	}
+	return sb.String()
+}
+
+func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	var cmd tea.Cmd
+	var cmds []tea.Cmd
+
+	switch msg := msg.(type) {
+	case tea.KeyMsg:
+		if m.state == stateLogin {
+			if msg.Type == tea.KeyCtrlC {
+				return m, tea.Quit
+			}
+			switch msg.String() {
+			case "tab":
+				m.focusIndex = (m.focusIndex + 1) % 3
+				m.serverInput.Blur()
+				m.usernameInput.Blur()
+				m.passwordInput.Blur()
+				switch m.focusIndex {
+				case 0:
+					m.serverInput.Focus()
+				case 1:
+					m.usernameInput.Focus()
+				case 2:
+					m.passwordInput.Focus()
+				}
+				return m, textinput.Blink
+			case "enter":
+				m.baseURL = m.serverInput.Value()
+				if m.baseURL == "" {
+					m.baseURL = DefaultBaseURL
+				}
+				return m, login(m.baseURL, m.usernameInput.Value(), m.passwordInput.Value())
+			case "esc":
+				return m, tea.Quit
+			default:
+				if m.focusIndex == 0 {
+					m.serverInput, cmd = m.serverInput.Update(msg)
+					cmds = append(cmds, cmd)
+				} else if m.focusIndex == 1 {
+					m.usernameInput, cmd = m.usernameInput.Update(msg)
+					cmds = append(cmds, cmd)
+				} else {
+					m.passwordInput, cmd = m.passwordInput.Update(msg)
+					cmds = append(cmds, cmd)
+				}
+				return m, tea.Batch(cmds...)
+			}
+		} else if m.state == stateSettings {
+			// SETTINGS STATE
+			if m.settingEditing {
+				switch msg.Type {
+				case tea.KeyEnter:
+					// Save value
+					m.settingEditing = false
+					val := m.settingInput.Value()
+					var cmd tea.Cmd
+
+					switch m.settingCursor {
+					case SetVinLimit:
+						v, _ := strconv.ParseFloat(val, 64)
+						cmd = saveDeviceSetting(m.baseURL, m.token, DeviceSettings{VinCurrentLimit: v})
+					case SetMainLimit:
+						v, _ := strconv.ParseFloat(val, 64)
+						cmd = saveDeviceSetting(m.baseURL, m.token, DeviceSettings{MainCurrentLimit: v})
+					case SetUsbLimit:
+						v, _ := strconv.ParseFloat(val, 64)
+						cmd = saveDeviceSetting(m.baseURL, m.token, DeviceSettings{UsbCurrentLimit: v})
+					case SetBaudRate:
+						v, _ := strconv.Atoi(val)
+						cmd = saveDeviceSetting(m.baseURL, m.token, DeviceSettings{BaudRate: v})
+					case SetPeriod:
+						v, _ := strconv.Atoi(val)
+						cmd = saveDeviceSetting(m.baseURL, m.token, DeviceSettings{SensorPeriod: v})
+					}
+					return m, cmd
+				case tea.KeyEsc:
+					m.settingEditing = false
+					return m, nil
+				default:
+					m.settingInput, cmd = m.settingInput.Update(msg)
+					return m, cmd
+				}
+			} else {
+				// Navigation
+				switch msg.String() {
+				case "q", "esc":
+					m.state = stateDashboard
+					return m, nil
+				case "up":
+					if m.settingCursor > 0 {
+						m.settingCursor--
+					}
+				case "down":
+					if m.settingCursor < 5 { // items count - 1
+						m.settingCursor++
+					}
+				case "enter":
+					if m.settingCursor == SetReboot {
+						return m, rebootDevice(m.baseURL, m.token)
+					}
+					// Start editing
+					m.settingEditing = true
+					m.settingInput.Focus()
+					// Pre-fill value
+					switch m.settingCursor {
+					case SetVinLimit:
+						m.settingInput.SetValue(fmt.Sprintf("%.1f", m.deviceSettings.VinCurrentLimit))
+					case SetMainLimit:
+						m.settingInput.SetValue(fmt.Sprintf("%.1f", m.deviceSettings.MainCurrentLimit))
+					case SetUsbLimit:
+						m.settingInput.SetValue(fmt.Sprintf("%.1f", m.deviceSettings.UsbCurrentLimit))
+					case SetBaudRate:
+						m.settingInput.SetValue(fmt.Sprintf("%d", m.deviceSettings.BaudRate))
+					case SetPeriod:
+						m.settingInput.SetValue(fmt.Sprintf("%d", m.deviceSettings.SensorPeriod))
+					}
+					return m, textinput.Blink
+				}
+			}
+		} else if m.state == stateDashboard {
+			// DASHBOARD STATE
+			keyStr := msg.String()
+
+			if keyStr == "ctrl+a" {
+				m.awaitingCommand = !m.awaitingCommand
+				if m.awaitingCommand {
+					m.lastStatusMsg = "Press '?' for help"
+				} else {
+					m.lastStatusMsg = ""
+				}
+				return m, nil
+			}
+
+			if m.awaitingCommand {
+				m.awaitingCommand = false
+				m.lastStatusMsg = ""
+				switch keyStr {
+				case "m":
+					m.lastStatusMsg = "Toggling Main Power..."
+					newState := !m.swStatus.Main
+					payload := ControlRequest{Load12vOn: &newState}
+					return m, sendControl(m.baseURL, m.token, payload)
+				case "u":
+					m.lastStatusMsg = "Toggling USB Power..."
+					newState := !m.swStatus.Usb
+					payload := ControlRequest{Load5vOn: &newState}
+					return m, sendControl(m.baseURL, m.token, payload)
+				case "r":
+					m.lastStatusMsg = "Sending Reset Signal..."
+					t := true
+					payload := ControlRequest{ResetTrigger: &t}
+					return m, sendControl(m.baseURL, m.token, payload)
+				case "p":
+					m.lastStatusMsg = "Sending Power Action..."
+					t := true
+					payload := ControlRequest{PowerTrigger: &t}
+					return m, sendControl(m.baseURL, m.token, payload)
+				case "a":
+					m.wsSend <- []byte{1}
+					return m, nil
+				case "o": // Open Settings
+					m.state = stateSettings
+					return m, fetchDeviceSettings(m.baseURL, m.token)
+				case "x": // Quit Program
+					return m, tea.Quit
+				case "q": // Close Command Window
+					m.lastStatusMsg = "Command mode closed."
+					return m, nil
+				default:
+					m.lastStatusMsg = "Command cancelled."
+					return m, nil
+				}
+			}
+
+			// Send to UART
+			var data []byte
+			switch msg.Type {
+			case tea.KeyRunes:
+				data = []byte(string(msg.Runes))
+			case tea.KeyEnter:
+				data = []byte{'\r'}
+			case tea.KeySpace:
+				data = []byte{' '}
+			case tea.KeyBackspace:
+				data = []byte{127}
+			case tea.KeyTab:
+				data = []byte{'\t'}
+			case tea.KeyEsc:
+				data = []byte{27}
+			case tea.KeyUp:
+				data = []byte("\x1b[A")
+			case tea.KeyDown:
+				data = []byte("\x1b[B")
+			case tea.KeyRight:
+				data = []byte("\x1b[C")
+			case tea.KeyLeft:
+				data = []byte("\x1b[D")
+			case tea.KeyHome:
+				data = []byte("\x1b[H")
+			case tea.KeyEnd:
+				data = []byte("\x1b[F")
+			case tea.KeyPgUp:
+				data = []byte("\x1b[5~")
+			case tea.KeyPgDown:
+				data = []byte("\x1b[6~")
+			case tea.KeyDelete:
+				data = []byte("\x1b[3~")
+			case tea.KeyInsert:
+				data = []byte("\x1b[2~")
+			default:
+				if len(keyStr) == 6 && strings.HasPrefix(keyStr, "ctrl+") {
+					c := keyStr[5]
+					if c >= 'a' && c <= 'z' {
+						data = []byte{byte(c - 'a' + 1)}
+					} else if c == '@' {
+						data = []byte{0}
+					} else if c == '[' {
+						data = []byte{27}
+					} else if c == '\\' {
+						data = []byte{28}
+					} else if c == ']' {
+						data = []byte{29}
+					} else if c == '^' {
+						data = []byte{30}
+					} else if c == '_' {
+						data = []byte{31}
+					}
+				} else if len(msg.Runes) > 0 {
+					data = []byte(string(msg.Runes))
+				}
+			}
+			if len(data) > 0 {
+				m.wsSend <- data
+			}
+			return m, nil
+		}
+
+	case tea.MouseMsg:
+		if m.state == stateDashboard {
+			var data []byte
+			switch msg.Type {
+			case tea.MouseWheelUp:
+				data = []byte("\x1b[A")
+			case tea.MouseWheelDown:
+				data = []byte("\x1b[B")
+			}
+			if len(data) > 0 {
+				m.wsSend <- data
+			}
+		}
+
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+		headerHeight := 10
+		termW := msg.Width - 2
+		termH := msg.Height - headerHeight
+		if termH < 5 {
+			termH = 5
+		}
+
+		m.logViewport.Width = termW
+		m.logViewport.Height = termH
+		m.term.Resize(termW, termH)
+
+	case sessionMsg:
+		m.token = msg.token
+		m.state = stateDashboard
+		return m, tea.Batch(
+			connectWebSocket(m.baseURL, m.token, m.wsSend),
+			fetchControlStatus(m.baseURL, m.token),
+		)
+
+	case settingsMsg:
+		m.deviceSettings = msg.settings
+		return m, nil
+
+	case initStatusMsg:
+		m.swStatus.Main = msg.mainOn
+		m.swStatus.Usb = msg.usbOn
+		return m, nil
+
+	case errMsg:
+		m.err = msg
+		return m, nil
+
+	case wsMsg:
+		switch payload := msg.Payload.(type) {
+		case *pb.StatusMessage_SensorData:
+			m.sensorData = payload.SensorData
+		case *pb.StatusMessage_WifiStatus:
+			m.wifiStatus = payload.WifiStatus
+		case *pb.StatusMessage_SwStatus:
+			m.swStatus = payload.SwStatus
+		case *pb.StatusMessage_UartData:
+			m.term.Write(payload.UartData.Data)
+			m.logViewport.SetContent(m.renderVt10x())
+		}
+	}
+
+	return m, tea.Batch(cmds...)
+}
+
+func (m model) View() string {
+	if m.err != nil {
+		return fmt.Sprintf("\nError: %v\n\nPress q to quit", errorStyle.Render(m.err.Error()))
+	}
+
+	if m.state == stateLogin {
+		return m.loginView()
+	} else if m.state == stateSettings {
+		return m.settingsView()
+	}
+
+	return m.dashboardView()
+}
+
+func (m model) loginView() string {
+	var b strings.Builder
+	b.WriteString("\n\n")
+	b.WriteString(titleStyle.Render(" ODROID Power Mate Login "))
+	b.WriteString("\n\n")
+
+	b.WriteString("Server Address:\n")
+	b.WriteString(m.serverInput.View())
+	b.WriteString("\n\n")
+
+	b.WriteString("Username:\n")
+	b.WriteString(m.usernameInput.View())
+	b.WriteString("\n\nPassword:\n")
+	b.WriteString(m.passwordInput.View())
+	b.WriteString("\n\n(Press Tab to switch, Enter to login, Ctrl+C to quit)")
+	return lipgloss.Place(m.width, m.height, lipgloss.Center, lipgloss.Center, b.String())
+}
+
+func (m model) settingsView() string {
+	var s strings.Builder
+	s.WriteString(titleStyle.Render(" Device Settings ") + "\n\n")
+
+	items := []struct {
+		label string
+		value string
+	}{
+		{"VIN Current Limit (A)", fmt.Sprintf("%.1f", m.deviceSettings.VinCurrentLimit)},
+		{"Main Current Limit (A)", fmt.Sprintf("%.1f", m.deviceSettings.MainCurrentLimit)},
+		{"USB Current Limit (A)", fmt.Sprintf("%.1f", m.deviceSettings.UsbCurrentLimit)},
+		{"UART Baud Rate", fmt.Sprintf("%d", m.deviceSettings.BaudRate)},
+		{"Sensor Period (ms)", fmt.Sprintf("%d", m.deviceSettings.SensorPeriod)},
+		{"[ Reboot Device ]", ""},
+	}
+
+	for i, item := range items {
+		label := item.label
+		value := item.value
+
+		if i == m.settingCursor {
+			s.WriteString(selectedItemStyle.Render(label))
+			if m.settingEditing {
+				s.WriteString(": " + m.settingInput.View())
+			} else {
+				s.WriteString(": " + value)
+			}
+		} else {
+			s.WriteString(settingItemStyle.Render(label + ": " + value))
+		}
+		s.WriteString("\n")
+	}
+
+	s.WriteString("\n(Enter to edit, Esc/q to back)")
+	return lipgloss.Place(m.width, m.height, lipgloss.Center, lipgloss.Center, s.String())
+}
+
+func (m model) dashboardView() string {
+	// Base Dashboard
+	header := titleStyle.Render(" ODROID Power Mate ")
+	if m.wifiStatus != nil {
+		ssid := m.wifiStatus.Ssid
+		if ssid == "" {
+			ssid = "Disconnected"
+		}
+		header += infoStyle.Render(fmt.Sprintf(" WiFi: %s (%s)", ssid, m.wifiStatus.IpAddress))
+	} else {
+		header += infoStyle.Render(" WiFi: --")
+	}
+
+	var statusText string
+	var statusStyle lipgloss.Style
+	if m.awaitingCommand {
+		statusText = " COMMAND MODE (Ctrl-A) >> Press: M(Main) U(USB) P(Power) R(Reset) O(Settings) A(Ctrl+A) Q(Close) X(Quit)"
+		statusStyle = commandModeStyle
+	} else {
+		statusText = " TERMINAL MODE >> Press Ctrl-A for Commands "
+		if m.lastStatusMsg != "" {
+			statusText += "| " + m.lastStatusMsg
+		}
+		statusStyle = statusBarStyle
+	}
+	bar := statusStyle.Width(m.width).Render(statusText)
+
+	metrics := ""
+	if m.sensorData != nil {
+		metrics = fmt.Sprintf(
+			"USB:  %.2f V / %.2f A / %.2f W\nMAIN: %.2f V / %.2f A / %.2f W\nVIN:  %.2f V / %.2f A / %.2f W\nUptime: %ds",
+			m.sensorData.Usb.Voltage, m.sensorData.Usb.Current, m.sensorData.Usb.Power,
+			m.sensorData.Main.Voltage, m.sensorData.Main.Current, m.sensorData.Main.Power,
+			m.sensorData.Vin.Voltage, m.sensorData.Vin.Current, m.sensorData.Vin.Power,
+			m.sensorData.UptimeMs/1000,
+		)
+	} else {
+		metrics = "Waiting for sensor data..."
+	}
+	metricsBox := lipgloss.NewStyle().Border(lipgloss.RoundedBorder()).Padding(0, 1).Width(m.width/2 - 2).Render(metrics)
+
+	switches := "States:\n"
+	mainState := "[OFF]"
+	if m.swStatus.Main {
+		mainState = "[ON ]"
+	}
+	usbState := "[OFF]"
+	if m.swStatus.Usb {
+		usbState = "[ON ]"
+	}
+	switches += fmt.Sprintf("Main: %s\n", mainState)
+	switches += fmt.Sprintf("USB : %s\n", usbState)
+	switchBox := lipgloss.NewStyle().Border(lipgloss.RoundedBorder()).Padding(0, 1).Width(m.width/2 - 2).Render(switches)
+
+	topSection := lipgloss.JoinHorizontal(lipgloss.Top, metricsBox, switchBox)
+
+	termView := lipgloss.NewStyle().
+		Border(lipgloss.NormalBorder()).
+		BorderForeground(lipgloss.Color("240")).
+		Width(m.width - 2).
+		Height(m.logViewport.Height).
+		Render(m.logViewport.View())
+
+	baseView := lipgloss.JoinVertical(lipgloss.Left, header, topSection, bar, termView)
+
+	// --- Help Overlay ---
+	if m.awaitingCommand {
+		helpText := `
+COMMAND MODE (Ctrl+A)
+
+  m : Toggle Main Power
+  u : Toggle USB Power
+  p : Power Trigger (Long Press)
+  r : Reset Trigger
+  o : Open Settings
+  a : Send 'Ctrl+A'
+  q : Close Command Window
+  x : Quit Program
+		`
+		helpWindow := helpBoxStyle.Render(helpText)
+
+		// Overlay help window on top of base view using lipgloss.Place
+		return lipgloss.Place(m.width, m.height, lipgloss.Center, lipgloss.Center, helpWindow, lipgloss.WithWhitespaceChars(" "), lipgloss.WithWhitespaceForeground(lipgloss.NoColor{}))
+	}
+
+	return baseView
+}
+
+func main() {
+	program = tea.NewProgram(initialModel(), tea.WithAltScreen(), tea.WithMouseCellMotion())
+	if _, err := program.Run(); err != nil {
+		fmt.Printf("Error running program: %v\n", err)
+		os.Exit(1)
+	}
+}
--- a/example/console-frontend/pb/status.pb.go
+++ b/example/console-frontend/pb/status.pb.go
@@ -0,0 +1,647 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.32.0
+// 	protoc        v3.21.12
+// source: status.proto
+
+package pb
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// Represents data for a single sensor channel
+type SensorChannelData struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Voltage float32 `protobuf:"fixed32,1,opt,name=voltage,proto3" json:"voltage,omitempty"`
+	Current float32 `protobuf:"fixed32,2,opt,name=current,proto3" json:"current,omitempty"`
+	Power   float32 `protobuf:"fixed32,3,opt,name=power,proto3" json:"power,omitempty"`
+}
+
+func (x *SensorChannelData) Reset() {
+	*x = SensorChannelData{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_status_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SensorChannelData) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SensorChannelData) ProtoMessage() {}
+
+func (x *SensorChannelData) ProtoReflect() protoreflect.Message {
+	mi := &file_status_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SensorChannelData.ProtoReflect.Descriptor instead.
+func (*SensorChannelData) Descriptor() ([]byte, []int) {
+	return file_status_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *SensorChannelData) GetVoltage() float32 {
+	if x != nil {
+		return x.Voltage
+	}
+	return 0
+}
+
+func (x *SensorChannelData) GetCurrent() float32 {
+	if x != nil {
+		return x.Current
+	}
+	return 0
+}
+
+func (x *SensorChannelData) GetPower() float32 {
+	if x != nil {
+		return x.Power
+	}
+	return 0
+}
+
+// Contains data for all sensor channels and system info
+type SensorData struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Usb         *SensorChannelData `protobuf:"bytes,1,opt,name=usb,proto3" json:"usb,omitempty"`
+	Main        *SensorChannelData `protobuf:"bytes,2,opt,name=main,proto3" json:"main,omitempty"`
+	Vin         *SensorChannelData `protobuf:"bytes,3,opt,name=vin,proto3" json:"vin,omitempty"`
+	TimestampMs uint64             `protobuf:"varint,4,opt,name=timestamp_ms,json=timestampMs,proto3" json:"timestamp_ms,omitempty"`
+	UptimeMs    uint64             `protobuf:"varint,5,opt,name=uptime_ms,json=uptimeMs,proto3" json:"uptime_ms,omitempty"`
+}
+
+func (x *SensorData) Reset() {
+	*x = SensorData{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_status_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SensorData) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SensorData) ProtoMessage() {}
+
+func (x *SensorData) ProtoReflect() protoreflect.Message {
+	mi := &file_status_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SensorData.ProtoReflect.Descriptor instead.
+func (*SensorData) Descriptor() ([]byte, []int) {
+	return file_status_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *SensorData) GetUsb() *SensorChannelData {
+	if x != nil {
+		return x.Usb
+	}
+	return nil
+}
+
+func (x *SensorData) GetMain() *SensorChannelData {
+	if x != nil {
+		return x.Main
+	}
+	return nil
+}
+
+func (x *SensorData) GetVin() *SensorChannelData {
+	if x != nil {
+		return x.Vin
+	}
+	return nil
+}
+
+func (x *SensorData) GetTimestampMs() uint64 {
+	if x != nil {
+		return x.TimestampMs
+	}
+	return 0
+}
+
+func (x *SensorData) GetUptimeMs() uint64 {
+	if x != nil {
+		return x.UptimeMs
+	}
+	return 0
+}
+
+// Contains WiFi connection status
+type WifiStatus struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Connected bool   `protobuf:"varint,1,opt,name=connected,proto3" json:"connected,omitempty"`
+	Ssid      string `protobuf:"bytes,2,opt,name=ssid,proto3" json:"ssid,omitempty"`
+	Rssi      int32  `protobuf:"varint,3,opt,name=rssi,proto3" json:"rssi,omitempty"`
+	IpAddress string `protobuf:"bytes,4,opt,name=ip_address,json=ipAddress,proto3" json:"ip_address,omitempty"`
+}
+
+func (x *WifiStatus) Reset() {
+	*x = WifiStatus{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_status_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *WifiStatus) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*WifiStatus) ProtoMessage() {}
+
+func (x *WifiStatus) ProtoReflect() protoreflect.Message {
+	mi := &file_status_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use WifiStatus.ProtoReflect.Descriptor instead.
+func (*WifiStatus) Descriptor() ([]byte, []int) {
+	return file_status_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *WifiStatus) GetConnected() bool {
+	if x != nil {
+		return x.Connected
+	}
+	return false
+}
+
+func (x *WifiStatus) GetSsid() string {
+	if x != nil {
+		return x.Ssid
+	}
+	return ""
+}
+
+func (x *WifiStatus) GetRssi() int32 {
+	if x != nil {
+		return x.Rssi
+	}
+	return 0
+}
+
+func (x *WifiStatus) GetIpAddress() string {
+	if x != nil {
+		return x.IpAddress
+	}
+	return ""
+}
+
+// Contains raw UART data
+type UartData struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Data []byte `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"`
+}
+
+func (x *UartData) Reset() {
+	*x = UartData{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_status_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *UartData) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*UartData) ProtoMessage() {}
+
+func (x *UartData) ProtoReflect() protoreflect.Message {
+	mi := &file_status_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use UartData.ProtoReflect.Descriptor instead.
+func (*UartData) Descriptor() ([]byte, []int) {
+	return file_status_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *UartData) GetData() []byte {
+	if x != nil {
+		return x.Data
+	}
+	return nil
+}
+
+// Contains load sw status
+type LoadSwStatus struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Main bool `protobuf:"varint,1,opt,name=main,proto3" json:"main,omitempty"`
+	Usb  bool `protobuf:"varint,2,opt,name=usb,proto3" json:"usb,omitempty"`
+}
+
+func (x *LoadSwStatus) Reset() {
+	*x = LoadSwStatus{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_status_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *LoadSwStatus) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*LoadSwStatus) ProtoMessage() {}
+
+func (x *LoadSwStatus) ProtoReflect() protoreflect.Message {
+	mi := &file_status_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use LoadSwStatus.ProtoReflect.Descriptor instead.
+func (*LoadSwStatus) Descriptor() ([]byte, []int) {
+	return file_status_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *LoadSwStatus) GetMain() bool {
+	if x != nil {
+		return x.Main
+	}
+	return false
+}
+
+func (x *LoadSwStatus) GetUsb() bool {
+	if x != nil {
+		return x.Usb
+	}
+	return false
+}
+
+// Top-level message for all websocket communication
+type StatusMessage struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Types that are assignable to Payload:
+	//
+	//	*StatusMessage_SensorData
+	//	*StatusMessage_WifiStatus
+	//	*StatusMessage_SwStatus
+	//	*StatusMessage_UartData
+	Payload isStatusMessage_Payload `protobuf_oneof:"payload"`
+}
+
+func (x *StatusMessage) Reset() {
+	*x = StatusMessage{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_status_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *StatusMessage) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*StatusMessage) ProtoMessage() {}
+
+func (x *StatusMessage) ProtoReflect() protoreflect.Message {
+	mi := &file_status_proto_msgTypes[5]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use StatusMessage.ProtoReflect.Descriptor instead.
+func (*StatusMessage) Descriptor() ([]byte, []int) {
+	return file_status_proto_rawDescGZIP(), []int{5}
+}
+
+func (m *StatusMessage) GetPayload() isStatusMessage_Payload {
+	if m != nil {
+		return m.Payload
+	}
+	return nil
+}
+
+func (x *StatusMessage) GetSensorData() *SensorData {
+	if x, ok := x.GetPayload().(*StatusMessage_SensorData); ok {
+		return x.SensorData
+	}
+	return nil
+}
+
+func (x *StatusMessage) GetWifiStatus() *WifiStatus {
+	if x, ok := x.GetPayload().(*StatusMessage_WifiStatus); ok {
+		return x.WifiStatus
+	}
+	return nil
+}
+
+func (x *StatusMessage) GetSwStatus() *LoadSwStatus {
+	if x, ok := x.GetPayload().(*StatusMessage_SwStatus); ok {
+		return x.SwStatus
+	}
+	return nil
+}
+
+func (x *StatusMessage) GetUartData() *UartData {
+	if x, ok := x.GetPayload().(*StatusMessage_UartData); ok {
+		return x.UartData
+	}
+	return nil
+}
+
+type isStatusMessage_Payload interface {
+	isStatusMessage_Payload()
+}
+
+type StatusMessage_SensorData struct {
+	SensorData *SensorData `protobuf:"bytes,1,opt,name=sensor_data,json=sensorData,proto3,oneof"`
+}
+
+type StatusMessage_WifiStatus struct {
+	WifiStatus *WifiStatus `protobuf:"bytes,2,opt,name=wifi_status,json=wifiStatus,proto3,oneof"`
+}
+
+type StatusMessage_SwStatus struct {
+	SwStatus *LoadSwStatus `protobuf:"bytes,3,opt,name=sw_status,json=swStatus,proto3,oneof"`
+}
+
+type StatusMessage_UartData struct {
+	UartData *UartData `protobuf:"bytes,4,opt,name=uart_data,json=uartData,proto3,oneof"`
+}
+
+func (*StatusMessage_SensorData) isStatusMessage_Payload() {}
+
+func (*StatusMessage_WifiStatus) isStatusMessage_Payload() {}
+
+func (*StatusMessage_SwStatus) isStatusMessage_Payload() {}
+
+func (*StatusMessage_UartData) isStatusMessage_Payload() {}
+
+var File_status_proto protoreflect.FileDescriptor
+
+var file_status_proto_rawDesc = []byte{
+	0x0a, 0x0c, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x06,
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+	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_status_proto_rawDescOnce sync.Once
+	file_status_proto_rawDescData = file_status_proto_rawDesc
+)
+
+func file_status_proto_rawDescGZIP() []byte {
+	file_status_proto_rawDescOnce.Do(func() {
+		file_status_proto_rawDescData = protoimpl.X.CompressGZIP(file_status_proto_rawDescData)
+	})
+	return file_status_proto_rawDescData
+}
+
+var file_status_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
+var file_status_proto_goTypes = []interface{}{
+	(*SensorChannelData)(nil), // 0: status.SensorChannelData
+	(*SensorData)(nil),        // 1: status.SensorData
+	(*WifiStatus)(nil),        // 2: status.WifiStatus
+	(*UartData)(nil),          // 3: status.UartData
+	(*LoadSwStatus)(nil),      // 4: status.LoadSwStatus
+	(*StatusMessage)(nil),     // 5: status.StatusMessage
+}
+var file_status_proto_depIdxs = []int32{
+	0, // 0: status.SensorData.usb:type_name -> status.SensorChannelData
+	0, // 1: status.SensorData.main:type_name -> status.SensorChannelData
+	0, // 2: status.SensorData.vin:type_name -> status.SensorChannelData
+	1, // 3: status.StatusMessage.sensor_data:type_name -> status.SensorData
+	2, // 4: status.StatusMessage.wifi_status:type_name -> status.WifiStatus
+	4, // 5: status.StatusMessage.sw_status:type_name -> status.LoadSwStatus
+	3, // 6: status.StatusMessage.uart_data:type_name -> status.UartData
+	7, // [7:7] is the sub-list for method output_type
+	7, // [7:7] is the sub-list for method input_type
+	7, // [7:7] is the sub-list for extension type_name
+	7, // [7:7] is the sub-list for extension extendee
+	0, // [0:7] is the sub-list for field type_name
+}
+
+func init() { file_status_proto_init() }
+func file_status_proto_init() {
+	if File_status_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_status_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SensorChannelData); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_status_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SensorData); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_status_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*WifiStatus); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_status_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*UartData); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_status_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*LoadSwStatus); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_status_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*StatusMessage); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	file_status_proto_msgTypes[5].OneofWrappers = []interface{}{
+		(*StatusMessage_SensorData)(nil),
+		(*StatusMessage_WifiStatus)(nil),
+		(*StatusMessage_SwStatus)(nil),
+		(*StatusMessage_UartData)(nil),
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_status_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   6,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_status_proto_goTypes,
+		DependencyIndexes: file_status_proto_depIdxs,
+		MessageInfos:      file_status_proto_msgTypes,
+	}.Build()
+	File_status_proto = out.File
+	file_status_proto_rawDesc = nil
+	file_status_proto_goTypes = nil
+	file_status_proto_depIdxs = nil
+}
--- a/example/powermate-console-frontend/status.proto
+++ b/example/powermate-console-frontend/status.proto
@@ -1,6 +1,7 @@
 syntax = "proto3";

-option go_package = "odroid-tui/pb";
+package status;
+option go_package = "./pb";

 // Represents data for a single sensor channel
 message SensorChannelData {
--- a/example/powermate-console-frontend/api.go
+++ b/example/powermate-console-frontend/api.go
@@ -1,177 +0,0 @@
-package main
-
-import (
-	"bytes"
-	"encoding/json"
-	"fmt"
-	"net/http"
-	"time"
-
-	tea "github.com/charmbracelet/bubbletea"
-	"github.com/gorilla/websocket"
-	"google.golang.org/protobuf/proto"
-	"odroid-tui/pb"
-)
-
-func scanWifi(d ConnectionDetails) tea.Cmd {
-	return func() tea.Msg {
-		url := fmt.Sprintf("http://%s/api/wifi/scan", d.IP)
-		req, _ := http.NewRequest("GET", url, nil)
-		req.Header.Set("Authorization", "Bearer "+d.Token)
-		client := &http.Client{Timeout: 10 * time.Second}
-		resp, err := client.Do(req)
-		if err != nil {
-			return err
-		}
-		defer resp.Body.Close()
-		var list []WifiAP
-		if err := json.NewDecoder(resp.Body).Decode(&list); err != nil {
-			return err
-		}
-		return WifiScanListMsg(list)
-	}
-}
-
-func fetchSettings(d ConnectionDetails) tea.Cmd {
-	return func() tea.Msg {
-		url := fmt.Sprintf("http://%s/api/setting", d.IP)
-		req, _ := http.NewRequest("GET", url, nil)
-		req.Header.Set("Authorization", "Bearer "+d.Token)
-		client := &http.Client{Timeout: 3 * time.Second}
-		resp, err := client.Do(req)
-		if err != nil {
-			return err
-		}
-		defer resp.Body.Close()
-		var cfg SettingsPayload
-		if err := json.NewDecoder(resp.Body).Decode(&cfg); err != nil {
-			return err
-		}
-		return SettingsFetchedMsg(cfg)
-	}
-}
-
-func saveSettingsMap(d ConnectionDetails, payload interface{}) tea.Cmd {
-	return func() tea.Msg {
-		url := fmt.Sprintf("http://%s/api/setting", d.IP)
-		jsonBytes, _ := json.Marshal(payload)
-		req, _ := http.NewRequest("POST", url, bytes.NewBuffer(jsonBytes))
-		req.Header.Set("Authorization", "Bearer "+d.Token)
-		req.Header.Set("Content-Type", "application/json")
-		client := &http.Client{Timeout: 5 * time.Second}
-		resp, err := client.Do(req)
-		if err != nil {
-			return fmt.Errorf("Save Failed: %v", err)
-		}
-		defer resp.Body.Close()
-		if resp.StatusCode != 200 {
-			return fmt.Errorf("Save Error: %d", resp.StatusCode)
-		}
-		return ActionDoneMsg{}
-	}
-}
-
-func rebootDevice(d ConnectionDetails) tea.Cmd {
-	return func() tea.Msg {
-		url := fmt.Sprintf("http://%s/api/reboot", d.IP)
-		req, _ := http.NewRequest("POST", url, nil)
-		req.Header.Set("Authorization", "Bearer "+d.Token)
-		client := &http.Client{Timeout: 2 * time.Second}
-		client.Do(req)
-		return ActionDoneMsg{}
-	}
-}
-
-func performLogin(d ConnectionDetails) tea.Cmd {
-	return func() tea.Msg {
-		url := fmt.Sprintf("http://%s/login", d.IP)
-		payload := map[string]string{"username": d.Username, "password": d.Password}
-		jsonBytes, _ := json.Marshal(payload)
-		client := &http.Client{Timeout: 5 * time.Second}
-		resp, err := client.Post(url, "application/json", bytes.NewBuffer(jsonBytes))
-		if err != nil {
-			return err
-		}
-		defer resp.Body.Close()
-		if resp.StatusCode != 200 {
-			return fmt.Errorf("Login Error: %d", resp.StatusCode)
-		}
-		var res map[string]string
-		json.NewDecoder(resp.Body).Decode(&res)
-		return LoginSuccessMsg(res["token"])
-	}
-}
-
-func fetchInitialState(d ConnectionDetails) tea.Cmd {
-	return func() tea.Msg {
-		url := fmt.Sprintf("http://%s/api/control", d.IP)
-		req, _ := http.NewRequest("GET", url, nil)
-		req.Header.Set("Authorization", "Bearer "+d.Token)
-		client := &http.Client{Timeout: 3 * time.Second}
-		resp, err := client.Do(req)
-		if err != nil {
-			return nil
-		}
-		defer resp.Body.Close()
-		var res InitApiResponse
-		json.NewDecoder(resp.Body).Decode(&res)
-		return InitStateMsg{MainOn: res.Load12vOn, UsbOn: res.Load5vOn}
-	}
-}
-
-func toggleLoad(d ConnectionDetails, key string, state bool) tea.Cmd {
-	return func() tea.Msg {
-		url := fmt.Sprintf("http://%s/api/control", d.IP)
-		payload := map[string]interface{}{key: state}
-		jsonBytes, _ := json.Marshal(payload)
-		req, _ := http.NewRequest("POST", url, bytes.NewBuffer(jsonBytes))
-		req.Header.Set("Authorization", "Bearer "+d.Token)
-		req.Header.Set("Content-Type", "application/json")
-		client := &http.Client{Timeout: 1 * time.Second}
-		client.Do(req)
-		return nil
-	}
-}
-
-func connectWebSocket(d ConnectionDetails) tea.Cmd {
-	return func() tea.Msg {
-		u := fmt.Sprintf("ws://%s/ws?token=%s", d.IP, d.Token)
-		conn, _, err := websocket.DefaultDialer.Dial(u, nil)
-		if err != nil {
-			return err
-		}
-		return waitForWebSocketMessage(conn)()
-	}
-}
-
-func waitForWebSocketMessage(conn *websocket.Conn) tea.Cmd {
-	return func() tea.Msg {
-		_, message, err := conn.ReadMessage()
-		if err != nil {
-			return err
-		}
-		var status pb.StatusMessage
-		if err := proto.Unmarshal(message, &status); err == nil {
-			conv := func(s *pb.SensorChannelData) *PowerMetrics {
-				if s == nil {
-					return nil
-				}
-				return &PowerMetrics{Voltage: float64(s.GetVoltage()), Current: float64(s.GetCurrent()), Power: float64(s.GetPower())}
-			}
-			msg := WsPartialMsg{Conn: conn}
-			if s := status.GetSensorData(); s != nil {
-				msg.Vin = conv(s.GetVin())
-				msg.Main = conv(s.GetMain())
-				msg.Usb = conv(s.GetUsb())
-			}
-			if w := status.GetWifiStatus(); w != nil {
-				msg.Wifi = &WifiInfo{SSID: w.GetSsid(), RSSI: int(w.GetRssi())}
-			}
-			if sw := status.GetSwStatus(); sw != nil {
-				msg.Sw = &SwitchInfo{MainOn: sw.GetMain(), UsbOn: sw.GetUsb()}
-			}
-			return msg
-		}
-		return waitForWebSocketMessage(conn)
-	}
-}
--- a/example/powermate-console-frontend/forms.go
+++ b/example/powermate-console-frontend/forms.go
@@ -1,173 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"github.com/charmbracelet/huh"
-)
-
-func (m *model) initLoginForm() {
-	m.loginForm = huh.NewForm(
-		huh.NewGroup(
-			huh.NewNote().Title("ODROID Connector").Description("Enter credentials"),
-			huh.NewInput().Title("IP Address").Value(&m.formData.IP),
-			huh.NewInput().Title("Username").Value(&m.formData.Username),
-			huh.NewInput().Title("Password").Value(&m.formData.Password).EchoMode(huh.EchoModePassword),
-		),
-	).WithTheme(huh.ThemeBase())
-}
-
-func (m *model) initSettingsMenu() {
-	*m.menuSelection = "scan"
-	m.settingsForm = huh.NewForm(
-		huh.NewGroup(
-			huh.NewSelect[string]().
-				Title("Settings Menu").
-				Key("menu_select").
-				Options(
-					huh.NewOption("1. Scan Networks", "scan"),
-					huh.NewOption("2. Manual Connection", "manual"),
-					huh.NewOption("3. IP Configuration", "ip"),
-					huh.NewOption("4. AP Mode Settings", "ap"),
-					huh.NewOption("5. System (UART/Sensor)", "system"),
-					huh.NewOption("6. Safety (Current Limits)", "safety"),
-					huh.NewOption("7. Account Settings", "account"),
-					huh.NewOption("8. Reboot Device", "reboot"),
-					huh.NewOption("Esc. Exit", "exit"),
-				).
-				Value(m.menuSelection),
-		),
-	).WithTheme(huh.ThemeDracula())
-}
-
-func (m *model) initWifiScanForm() {
-	opts := make([]huh.Option[string], 0)
-	for _, ap := range m.wifiScanList {
-		label := fmt.Sprintf("%s (%ddBm, %s)", ap.SSID, ap.RSSI, ap.AuthMode)
-		opts = append(opts, huh.NewOption(label, ap.SSID))
-	}
-	if len(opts) == 0 {
-		opts = append(opts, huh.NewOption("(No Networks Found - Back)", ""))
-	}
-
-	// [수정] 터미널 높이를 계산하여 리스트 최대 높이 제한 (스크롤 활성화)
-	listHeight := 10
-	if m.height > 20 {
-		listHeight = m.height - 10 // 여백 고려
-	}
-
-	m.settingsForm = huh.NewForm(
-		huh.NewGroup(
-			huh.NewSelect[string]().
-				Title("Select Wi-Fi Network").
-				Key("scan_ssid").
-				Options(opts...).
-				Value(&m.settingsData.WifiSSID).
-				WithHeight(listHeight), // [핵심] 높이 제한으로 터미널 뚫림 방지
-		),
-	).WithTheme(huh.ThemeDracula())
-}
-
-func (m *model) initWifiForm() {
-	m.settingsForm = huh.NewForm(
-		huh.NewGroup(
-			huh.NewNote().Title("Connect to Wi-Fi"),
-			huh.NewInput().Title("SSID").Value(&m.settingsData.WifiSSID),
-			huh.NewInput().Title("Password").Value(&m.settingsData.WifiPass).EchoMode(huh.EchoModePassword),
-		),
-	).WithTheme(huh.ThemeDracula())
-}
-
-func (m *model) initIPForm() {
-	m.settingsForm = huh.NewForm(
-		huh.NewGroup(
-			huh.NewSelect[string]().
-				Title("Network Type").
-				Options(
-					huh.NewOption("DHCP", "dhcp"),
-					huh.NewOption("Static", "static"),
-				).
-				Value(&m.settingsData.NetType),
-		),
-		huh.NewGroup(
-			huh.NewNote().Title("Static IP Details"),
-			huh.NewInput().Title("IP Address").Value(&m.settingsData.IP),
-			huh.NewInput().Title("Gateway").Value(&m.settingsData.Gateway),
-			huh.NewInput().Title("Subnet Mask").Value(&m.settingsData.Subnet),
-			huh.NewInput().Title("DNS 1").Value(&m.settingsData.DNS1),
-			huh.NewInput().Title("DNS 2").Value(&m.settingsData.DNS2),
-		).WithHideFunc(func() bool {
-			// [수정] DHCP일 때 완벽히 숨김 처리
-			return m.settingsData.NetType != "static"
-		}),
-	).WithTheme(huh.ThemeDracula())
-}
-
-func (m *model) initAPForm() {
-	m.settingsForm = huh.NewForm(
-		huh.NewGroup(
-			huh.NewSelect[string]().
-				Title("WiFi Mode").
-				Options(
-					huh.NewOption("Station Only (STA)", "sta"),
-					huh.NewOption("AP + Station (APSTA)", "apsta"),
-				).
-				Value(&m.settingsData.Mode),
-		),
-		huh.NewGroup(
-			huh.NewNote().Title("AP Settings"),
-			huh.NewInput().Title("AP SSID").Value(&m.settingsData.APSSID),
-			huh.NewInput().Title("AP Password").Value(&m.settingsData.APPass).EchoMode(huh.EchoModePassword),
-		).WithHideFunc(func() bool {
-			// [수정] APSTA가 아닐 때 숨김 처리
-			return m.settingsData.Mode != "apsta"
-		}),
-	).WithTheme(huh.ThemeDracula())
-}
-
-func (m *model) initSystemForm() {
-	m.settingsForm = huh.NewForm(
-		huh.NewGroup(
-			huh.NewNote().Title("System Configuration"),
-			huh.NewSelect[string]().
-				Title("UART Baudrate").
-				Options(
-					huh.NewOption("9600", "9600"),
-					huh.NewOption("19200", "19200"),
-					huh.NewOption("38400", "38400"),
-					huh.NewOption("57600", "57600"),
-					huh.NewOption("115200", "115200"),
-					huh.NewOption("1500000", "1500000"),
-				).
-				Value(&m.settingsData.Baudrate),
-			huh.NewInput().
-				Title("Sensor Period (ms)").
-				Value(&m.settingsData.Period),
-		),
-	).WithTheme(huh.ThemeDracula())
-}
-
-func (m *model) initSafetyForm() {
-	vinStr := fmt.Sprintf("%.2f", m.settingsData.VinLimit)
-	mainStr := fmt.Sprintf("%.2f", m.settingsData.MainLimit)
-	usbStr := fmt.Sprintf("%.2f", m.settingsData.UsbLimit)
-
-	m.settingsForm = huh.NewForm(
-		huh.NewGroup(
-			huh.NewNote().Title("Current Limits (Ampere)"),
-			// Key를 명시하여 update.go에서 안전하게 파싱
-			huh.NewInput().Title("VIN Limit").Value(&vinStr).Key("vin_limit"),
-			huh.NewInput().Title("Main (12V) Limit").Value(&mainStr).Key("main_limit"),
-			huh.NewInput().Title("USB (5V) Limit").Value(&usbStr).Key("usb_limit"),
-		),
-	).WithTheme(huh.ThemeDracula())
-}
-
-func (m *model) initAccountForm() {
-	m.settingsForm = huh.NewForm(
-		huh.NewGroup(
-			huh.NewNote().Title("Change Credentials"),
-			huh.NewInput().Title("New Username").Value(&m.settingsData.NewUser),
-			huh.NewInput().Title("New Password").Value(&m.settingsData.NewPass).EchoMode(huh.EchoModePassword),
-		),
-	).WithTheme(huh.ThemeDracula())
-}
--- a/example/powermate-console-frontend/go.mod
+++ b/example/powermate-console-frontend/go.mod
@@ -1,41 +0,0 @@
-module odroid-tui
-
-go 1.24.0
-
-toolchain go1.24.11
-
-require (
-        github.com/charmbracelet/bubbletea v1.3.10
-        github.com/charmbracelet/huh v0.8.0
-        github.com/charmbracelet/lipgloss v1.1.0
-        github.com/gorilla/websocket v1.5.3
-        github.com/guptarohit/asciigraph v0.7.3
-        golang.org/x/term v0.38.0
-        google.golang.org/protobuf v1.36.11
-)
-
-require (
-        github.com/atotto/clipboard v0.1.4 // indirect
-        github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
-        github.com/catppuccin/go v0.3.0 // indirect
-        github.com/charmbracelet/bubbles v0.21.1-0.20250623103423-23b8fd6302d7 // indirect
-        github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc // indirect
-        github.com/charmbracelet/x/ansi v0.10.1 // indirect
-        github.com/charmbracelet/x/cellbuf v0.0.13 // indirect
-        github.com/charmbracelet/x/exp/strings v0.0.0-20240722160745-212f7b056ed0 // indirect
-        github.com/charmbracelet/x/term v0.2.1 // indirect
-        github.com/dustin/go-humanize v1.0.1 // indirect
-        github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
-        github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
-        github.com/mattn/go-isatty v0.0.20 // indirect
-        github.com/mattn/go-localereader v0.0.1 // indirect
-        github.com/mattn/go-runewidth v0.0.16 // indirect
-        github.com/mitchellh/hashstructure/v2 v2.0.2 // indirect
-        github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
-        github.com/muesli/cancelreader v0.2.2 // indirect
-        github.com/muesli/termenv v0.16.0 // indirect
-        github.com/rivo/uniseg v0.4.7 // indirect
-        github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
-        golang.org/x/sys v0.39.0 // indirect
-        golang.org/x/text v0.23.0 // indirect
-)
--- a/example/powermate-console-frontend/go.sum
+++ b/example/powermate-console-frontend/go.sum
@@ -1,83 +0,0 @@
-github.com/MakeNowJust/heredoc v1.0.0 h1:cXCdzVdstXyiTqTvfqk9SDHpKNjxuom+DOlyEeQ4pzQ=
-github.com/MakeNowJust/heredoc v1.0.0/go.mod h1:mG5amYoWBHf8vpLOuehzbGGw0EHxpZZ6lCpQ4fNJ8LE=
-github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
-github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
-github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
-github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
-github.com/aymanbagabas/go-udiff v0.3.1 h1:LV+qyBQ2pqe0u42ZsUEtPiCaUoqgA9gYRDs3vj1nolY=
-github.com/aymanbagabas/go-udiff v0.3.1/go.mod h1:G0fsKmG+P6ylD0r6N/KgQD/nWzgfnl8ZBcNLgcbrw8E=
-github.com/catppuccin/go v0.3.0 h1:d+0/YicIq+hSTo5oPuRi5kOpqkVA5tAsU6dNhvRu+aY=
-github.com/catppuccin/go v0.3.0/go.mod h1:8IHJuMGaUUjQM82qBrGNBv7LFq6JI3NnQCF6MOlZjpc=
-github.com/charmbracelet/bubbles v0.21.1-0.20250623103423-23b8fd6302d7 h1:JFgG/xnwFfbezlUnFMJy0nusZvytYysV4SCS2cYbvws=
-github.com/charmbracelet/bubbles v0.21.1-0.20250623103423-23b8fd6302d7/go.mod h1:ISC1gtLcVilLOf23wvTfoQuYbW2q0JevFxPfUzZ9Ybw=
-github.com/charmbracelet/bubbletea v1.3.10 h1:otUDHWMMzQSB0Pkc87rm691KZ3SWa4KUlvF9nRvCICw=
-github.com/charmbracelet/bubbletea v1.3.10/go.mod h1:ORQfo0fk8U+po9VaNvnV95UPWA1BitP1E0N6xJPlHr4=
-github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc h1:4pZI35227imm7yK2bGPcfpFEmuY1gc2YSTShr4iJBfs=
-github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc/go.mod h1:X4/0JoqgTIPSFcRA/P6INZzIuyqdFY5rm8tb41s9okk=
-github.com/charmbracelet/huh v0.8.0 h1:Xz/Pm2h64cXQZn/Jvele4J3r7DDiqFCNIVteYukxDvY=
-github.com/charmbracelet/huh v0.8.0/go.mod h1:5YVc+SlZ1IhQALxRPpkGwwEKftN/+OlJlnJYlDRFqN4=
-github.com/charmbracelet/lipgloss v1.1.0 h1:vYXsiLHVkK7fp74RkV7b2kq9+zDLoEU4MZoFqR/noCY=
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-github.com/charmbracelet/x/exp/golden v0.0.0-20241011142426-46044092ad91/go.mod h1:wDlXFlCrmJ8J+swcL/MnGUuYnqgQdW9rhSD61oNMb6U=
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-github.com/charmbracelet/x/term v0.2.1/go.mod h1:oQ4enTYFV7QN4m0i9mzHrViD7TQKvNEEkHUMCmsxdUg=
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--- a/example/powermate-console-frontend/main.go
+++ b/example/powermate-console-frontend/main.go
@@ -1,63 +0,0 @@
-package main
-
-import (
-	"flag"
-	"fmt"
-	"os"
-
-	tea "github.com/charmbracelet/bubbletea"
-)
-
-func initialModel(ip, user, pass string) model {
-	formPtr := &ConnectionDetails{IP: "192.168.0.100", Username: "admin"}
-	if ip != "" {
-		formPtr.IP = ip
-	}
-	if user != "" {
-		formPtr.Username = user
-	}
-	if pass != "" {
-		formPtr.Password = pass
-	}
-
-	connPtr := &ConnectionDetails{IP: ip, Username: user, Password: pass}
-
-	// [수정] menuSelection 초기화
-	menuSel := "scan"
-
-	m := model{
-		state:         StateLogin,
-		connDetails:   connPtr,
-		formData:      formPtr,
-		menuSelection: &menuSel, // 포인터 할당
-		settingsData: SettingsPayload{
-			Baudrate: "115200",
-			Period:   "1000",
-		},
-	}
-
-	if ip != "" && user != "" && pass != "" {
-		return m
-	}
-	m.initLoginForm()
-	return m
-}
-
-func (m model) Init() tea.Cmd {
-	if m.connDetails.IP != "" && m.connDetails.Username != "" && m.connDetails.Password != "" {
-		return performLogin(*m.connDetails)
-	}
-	return m.loginForm.Init()
-}
-
-func main() {
-	host := flag.String("h", "", "IP")
-	user := flag.String("u", "", "User")
-	pass := flag.String("p", "", "Pass")
-	flag.Parse()
-
-	if _, err := tea.NewProgram(initialModel(*host, *user, *pass), tea.WithAltScreen()).Run(); err != nil {
-		fmt.Println("Error:", err)
-		os.Exit(1)
-	}
-}
--- a/example/powermate-console-frontend/models.go
+++ b/example/powermate-console-frontend/models.go
@@ -1,141 +0,0 @@
-package main
-
-import (
-	"github.com/charmbracelet/huh"
-	"github.com/gorilla/websocket"
-)
-
-// --- [상수 및 Enum] ---
-type AppState int
-
-const (
-	StateLogin AppState = iota
-	StateDashboard
-	StateTerminal
-	StateSettings
-)
-
-type SettingSubState int
-
-const (
-	SubMenu SettingSubState = iota
-	SubWifiScanList
-	SubWifiConnect
-	SubIPConfig
-	SubAPMode
-	SubSystem
-	SubSafety
-	SubAccount
-)
-
-// --- [데이터 구조체] ---
-type ConnectionDetails struct {
-	IP, Username, Password, Token string
-}
-
-type PowerMetrics struct {
-	Voltage, Current, Power float64
-}
-
-type WifiInfo struct {
-	SSID string
-	RSSI int
-}
-
-type SwitchInfo struct {
-	MainOn, UsbOn bool
-}
-
-type DeviceStatus struct {
-	Vin  PowerMetrics
-	Main PowerMetrics
-	Usb  PowerMetrics
-	Wifi WifiInfo
-	Sw   SwitchInfo
-}
-
-type InitApiResponse struct {
-	Load12vOn bool `json:"load_12v_on"`
-	Load5vOn  bool `json:"load_5v_on"`
-}
-
-type WifiAP struct {
-	SSID     string `json:"ssid"`
-	RSSI     int    `json:"rssi"`
-	AuthMode string `json:"authmode"`
-}
-
-type SettingsPayload struct {
-	Connected bool   `json:"connected,omitempty"`
-	CurSSID   string `json:"ssid,omitempty"`
-	CurIP     struct {
-		IP      string `json:"ip"`
-		Gateway string `json:"gateway"`
-		Subnet  string `json:"subnet"`
-		DNS1    string `json:"dns1"`
-		DNS2    string `json:"dns2"`
-	} `json:"ip,omitempty"`
-
-	WifiSSID string `json:"ssid,omitempty"`
-	WifiPass string `json:"password,omitempty"`
-
-	NetType string `json:"net_type,omitempty"`
-	IP      string `json:"ip,omitempty"`
-	Gateway string `json:"gateway,omitempty"`
-	Subnet  string `json:"subnet,omitempty"`
-	DNS1    string `json:"dns1,omitempty"`
-	DNS2    string `json:"dns2,omitempty"`
-
-	Mode   string `json:"mode,omitempty"`
-	APSSID string `json:"ap_ssid,omitempty"`
-	APPass string `json:"ap_password,omitempty"`
-
-	Baudrate string `json:"baudrate,omitempty"`
-	Period   string `json:"period,omitempty"`
-
-	VinLimit  float64 `json:"vin_current_limit,omitempty"`
-	MainLimit float64 `json:"main_current_limit,omitempty"`
-	UsbLimit  float64 `json:"usb_current_limit,omitempty"`
-
-	NewUser string `json:"new_username,omitempty"`
-	NewPass string `json:"new_password,omitempty"`
-}
-
-// --- [메인 모델] ---
-type model struct {
-	state       AppState
-	connDetails *ConnectionDetails
-	formData    *ConnectionDetails
-
-	status DeviceStatus
-	width  int
-	height int
-
-	// Settings State
-	settingSubState SettingSubState
-	menuSelection   *string // [수정] 포인터로 변경 (메뉴 선택 버그 해결 핵심)
-	scanning        bool    // [추가] Wi-Fi 스캔 중 상태 표시
-	settingsData    SettingsPayload
-	wifiScanList    []WifiAP
-
-	// Forms
-	loginForm    *huh.Form
-	settingsForm *huh.Form
-
-	err error
-}
-
-// --- [Tea Messages] ---
-type TerminalFinishedMsg struct{}
-type LoginSuccessMsg string
-type InitStateMsg SwitchInfo
-type SettingsFetchedMsg SettingsPayload
-type ActionDoneMsg struct{}
-type WifiScanListMsg []WifiAP
-
-type WsPartialMsg struct {
-	Vin, Main, Usb *PowerMetrics
-	Wifi           *WifiInfo
-	Sw             *SwitchInfo
-	Conn           *websocket.Conn
-}
--- a/example/powermate-console-frontend/pb/status.pb.go
+++ b/example/powermate-console-frontend/pb/status.pb.go
@@ -1,545 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v3.21.12
-// source: status.proto
-
-package pb
-
-import (
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	reflect "reflect"
-	sync "sync"
-	unsafe "unsafe"
-)
-
-const (
-	// Verify that this generated code is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
-	// Verify that runtime/protoimpl is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
-)
-
-// Represents data for a single sensor channel
-type SensorChannelData struct {
-	state         protoimpl.MessageState `protogen:"open.v1"`
-	Voltage       float32                `protobuf:"fixed32,1,opt,name=voltage,proto3" json:"voltage,omitempty"`
-	Current       float32                `protobuf:"fixed32,2,opt,name=current,proto3" json:"current,omitempty"`
-	Power         float32                `protobuf:"fixed32,3,opt,name=power,proto3" json:"power,omitempty"`
-	unknownFields protoimpl.UnknownFields
-	sizeCache     protoimpl.SizeCache
-}
-
-func (x *SensorChannelData) Reset() {
-	*x = SensorChannelData{}
-	mi := &file_status_proto_msgTypes[0]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *SensorChannelData) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*SensorChannelData) ProtoMessage() {}
-
-func (x *SensorChannelData) ProtoReflect() protoreflect.Message {
-	mi := &file_status_proto_msgTypes[0]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use SensorChannelData.ProtoReflect.Descriptor instead.
-func (*SensorChannelData) Descriptor() ([]byte, []int) {
-	return file_status_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *SensorChannelData) GetVoltage() float32 {
-	if x != nil {
-		return x.Voltage
-	}
-	return 0
-}
-
-func (x *SensorChannelData) GetCurrent() float32 {
-	if x != nil {
-		return x.Current
-	}
-	return 0
-}
-
-func (x *SensorChannelData) GetPower() float32 {
-	if x != nil {
-		return x.Power
-	}
-	return 0
-}
-
-// Contains data for all sensor channels and system info
-type SensorData struct {
-	state         protoimpl.MessageState `protogen:"open.v1"`
-	Usb           *SensorChannelData     `protobuf:"bytes,1,opt,name=usb,proto3" json:"usb,omitempty"`
-	Main          *SensorChannelData     `protobuf:"bytes,2,opt,name=main,proto3" json:"main,omitempty"`
-	Vin           *SensorChannelData     `protobuf:"bytes,3,opt,name=vin,proto3" json:"vin,omitempty"`
-	TimestampMs   uint64                 `protobuf:"varint,4,opt,name=timestamp_ms,json=timestampMs,proto3" json:"timestamp_ms,omitempty"`
-	UptimeMs      uint64                 `protobuf:"varint,5,opt,name=uptime_ms,json=uptimeMs,proto3" json:"uptime_ms,omitempty"`
-	unknownFields protoimpl.UnknownFields
-	sizeCache     protoimpl.SizeCache
-}
-
-func (x *SensorData) Reset() {
-	*x = SensorData{}
-	mi := &file_status_proto_msgTypes[1]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *SensorData) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*SensorData) ProtoMessage() {}
-
-func (x *SensorData) ProtoReflect() protoreflect.Message {
-	mi := &file_status_proto_msgTypes[1]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use SensorData.ProtoReflect.Descriptor instead.
-func (*SensorData) Descriptor() ([]byte, []int) {
-	return file_status_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *SensorData) GetUsb() *SensorChannelData {
-	if x != nil {
-		return x.Usb
-	}
-	return nil
-}
-
-func (x *SensorData) GetMain() *SensorChannelData {
-	if x != nil {
-		return x.Main
-	}
-	return nil
-}
-
-func (x *SensorData) GetVin() *SensorChannelData {
-	if x != nil {
-		return x.Vin
-	}
-	return nil
-}
-
-func (x *SensorData) GetTimestampMs() uint64 {
-	if x != nil {
-		return x.TimestampMs
-	}
-	return 0
-}
-
-func (x *SensorData) GetUptimeMs() uint64 {
-	if x != nil {
-		return x.UptimeMs
-	}
-	return 0
-}
-
-// Contains WiFi connection status
-type WifiStatus struct {
-	state         protoimpl.MessageState `protogen:"open.v1"`
-	Connected     bool                   `protobuf:"varint,1,opt,name=connected,proto3" json:"connected,omitempty"`
-	Ssid          string                 `protobuf:"bytes,2,opt,name=ssid,proto3" json:"ssid,omitempty"`
-	Rssi          int32                  `protobuf:"varint,3,opt,name=rssi,proto3" json:"rssi,omitempty"`
-	IpAddress     string                 `protobuf:"bytes,4,opt,name=ip_address,json=ipAddress,proto3" json:"ip_address,omitempty"`
-	unknownFields protoimpl.UnknownFields
-	sizeCache     protoimpl.SizeCache
-}
-
-func (x *WifiStatus) Reset() {
-	*x = WifiStatus{}
-	mi := &file_status_proto_msgTypes[2]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *WifiStatus) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*WifiStatus) ProtoMessage() {}
-
-func (x *WifiStatus) ProtoReflect() protoreflect.Message {
-	mi := &file_status_proto_msgTypes[2]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use WifiStatus.ProtoReflect.Descriptor instead.
-func (*WifiStatus) Descriptor() ([]byte, []int) {
-	return file_status_proto_rawDescGZIP(), []int{2}
-}
-
-func (x *WifiStatus) GetConnected() bool {
-	if x != nil {
-		return x.Connected
-	}
-	return false
-}
-
-func (x *WifiStatus) GetSsid() string {
-	if x != nil {
-		return x.Ssid
-	}
-	return ""
-}
-
-func (x *WifiStatus) GetRssi() int32 {
-	if x != nil {
-		return x.Rssi
-	}
-	return 0
-}
-
-func (x *WifiStatus) GetIpAddress() string {
-	if x != nil {
-		return x.IpAddress
-	}
-	return ""
-}
-
-// Contains raw UART data
-type UartData struct {
-	state         protoimpl.MessageState `protogen:"open.v1"`
-	Data          []byte                 `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"`
-	unknownFields protoimpl.UnknownFields
-	sizeCache     protoimpl.SizeCache
-}
-
-func (x *UartData) Reset() {
-	*x = UartData{}
-	mi := &file_status_proto_msgTypes[3]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *UartData) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*UartData) ProtoMessage() {}
-
-func (x *UartData) ProtoReflect() protoreflect.Message {
-	mi := &file_status_proto_msgTypes[3]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use UartData.ProtoReflect.Descriptor instead.
-func (*UartData) Descriptor() ([]byte, []int) {
-	return file_status_proto_rawDescGZIP(), []int{3}
-}
-
-func (x *UartData) GetData() []byte {
-	if x != nil {
-		return x.Data
-	}
-	return nil
-}
-
-// Contains load sw status
-type LoadSwStatus struct {
-	state         protoimpl.MessageState `protogen:"open.v1"`
-	Main          bool                   `protobuf:"varint,1,opt,name=main,proto3" json:"main,omitempty"`
-	Usb           bool                   `protobuf:"varint,2,opt,name=usb,proto3" json:"usb,omitempty"`
-	unknownFields protoimpl.UnknownFields
-	sizeCache     protoimpl.SizeCache
-}
-
-func (x *LoadSwStatus) Reset() {
-	*x = LoadSwStatus{}
-	mi := &file_status_proto_msgTypes[4]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *LoadSwStatus) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*LoadSwStatus) ProtoMessage() {}
-
-func (x *LoadSwStatus) ProtoReflect() protoreflect.Message {
-	mi := &file_status_proto_msgTypes[4]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use LoadSwStatus.ProtoReflect.Descriptor instead.
-func (*LoadSwStatus) Descriptor() ([]byte, []int) {
-	return file_status_proto_rawDescGZIP(), []int{4}
-}
-
-func (x *LoadSwStatus) GetMain() bool {
-	if x != nil {
-		return x.Main
-	}
-	return false
-}
-
-func (x *LoadSwStatus) GetUsb() bool {
-	if x != nil {
-		return x.Usb
-	}
-	return false
-}
-
-// Top-level message for all websocket communication
-type StatusMessage struct {
-	state protoimpl.MessageState `protogen:"open.v1"`
-	// Types that are valid to be assigned to Payload:
-	//
-	//	*StatusMessage_SensorData
-	//	*StatusMessage_WifiStatus
-	//	*StatusMessage_SwStatus
-	//	*StatusMessage_UartData
-	Payload       isStatusMessage_Payload `protobuf_oneof:"payload"`
-	unknownFields protoimpl.UnknownFields
-	sizeCache     protoimpl.SizeCache
-}
-
-func (x *StatusMessage) Reset() {
-	*x = StatusMessage{}
-	mi := &file_status_proto_msgTypes[5]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *StatusMessage) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*StatusMessage) ProtoMessage() {}
-
-func (x *StatusMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_status_proto_msgTypes[5]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use StatusMessage.ProtoReflect.Descriptor instead.
-func (*StatusMessage) Descriptor() ([]byte, []int) {
-	return file_status_proto_rawDescGZIP(), []int{5}
-}
-
-func (x *StatusMessage) GetPayload() isStatusMessage_Payload {
-	if x != nil {
-		return x.Payload
-	}
-	return nil
-}
-
-func (x *StatusMessage) GetSensorData() *SensorData {
-	if x != nil {
-		if x, ok := x.Payload.(*StatusMessage_SensorData); ok {
-			return x.SensorData
-		}
-	}
-	return nil
-}
-
-func (x *StatusMessage) GetWifiStatus() *WifiStatus {
-	if x != nil {
-		if x, ok := x.Payload.(*StatusMessage_WifiStatus); ok {
-			return x.WifiStatus
-		}
-	}
-	return nil
-}
-
-func (x *StatusMessage) GetSwStatus() *LoadSwStatus {
-	if x != nil {
-		if x, ok := x.Payload.(*StatusMessage_SwStatus); ok {
-			return x.SwStatus
-		}
-	}
-	return nil
-}
-
-func (x *StatusMessage) GetUartData() *UartData {
-	if x != nil {
-		if x, ok := x.Payload.(*StatusMessage_UartData); ok {
-			return x.UartData
-		}
-	}
-	return nil
-}
-
-type isStatusMessage_Payload interface {
-	isStatusMessage_Payload()
-}
-
-type StatusMessage_SensorData struct {
-	SensorData *SensorData `protobuf:"bytes,1,opt,name=sensor_data,json=sensorData,proto3,oneof"`
-}
-
-type StatusMessage_WifiStatus struct {
-	WifiStatus *WifiStatus `protobuf:"bytes,2,opt,name=wifi_status,json=wifiStatus,proto3,oneof"`
-}
-
-type StatusMessage_SwStatus struct {
-	SwStatus *LoadSwStatus `protobuf:"bytes,3,opt,name=sw_status,json=swStatus,proto3,oneof"`
-}
-
-type StatusMessage_UartData struct {
-	UartData *UartData `protobuf:"bytes,4,opt,name=uart_data,json=uartData,proto3,oneof"`
-}
-
-func (*StatusMessage_SensorData) isStatusMessage_Payload() {}
-
-func (*StatusMessage_WifiStatus) isStatusMessage_Payload() {}
-
-func (*StatusMessage_SwStatus) isStatusMessage_Payload() {}
-
-func (*StatusMessage_UartData) isStatusMessage_Payload() {}
-
-var File_status_proto protoreflect.FileDescriptor
-
-const file_status_proto_rawDesc = "" +
-	"\n" +
-	"\fstatus.proto\"]\n" +
-	"\x11SensorChannelData\x12\x18\n" +
-	"\avoltage\x18\x01 \x01(\x02R\avoltage\x12\x18\n" +
-	"\acurrent\x18\x02 \x01(\x02R\acurrent\x12\x14\n" +
-	"\x05power\x18\x03 \x01(\x02R\x05power\"\xc0\x01\n" +
-	"\n" +
-	"SensorData\x12$\n" +
-	"\x03usb\x18\x01 \x01(\v2\x12.SensorChannelDataR\x03usb\x12&\n" +
-	"\x04main\x18\x02 \x01(\v2\x12.SensorChannelDataR\x04main\x12$\n" +
-	"\x03vin\x18\x03 \x01(\v2\x12.SensorChannelDataR\x03vin\x12!\n" +
-	"\ftimestamp_ms\x18\x04 \x01(\x04R\vtimestampMs\x12\x1b\n" +
-	"\tuptime_ms\x18\x05 \x01(\x04R\buptimeMs\"q\n" +
-	"\n" +
-	"WifiStatus\x12\x1c\n" +
-	"\tconnected\x18\x01 \x01(\bR\tconnected\x12\x12\n" +
-	"\x04ssid\x18\x02 \x01(\tR\x04ssid\x12\x12\n" +
-	"\x04rssi\x18\x03 \x01(\x05R\x04rssi\x12\x1d\n" +
-	"\n" +
-	"ip_address\x18\x04 \x01(\tR\tipAddress\"\x1e\n" +
-	"\bUartData\x12\x12\n" +
-	"\x04data\x18\x01 \x01(\fR\x04data\"4\n" +
-	"\fLoadSwStatus\x12\x12\n" +
-	"\x04main\x18\x01 \x01(\bR\x04main\x12\x10\n" +
-	"\x03usb\x18\x02 \x01(\bR\x03usb\"\xd2\x01\n" +
-	"\rStatusMessage\x12.\n" +
-	"\vsensor_data\x18\x01 \x01(\v2\v.SensorDataH\x00R\n" +
-	"sensorData\x12.\n" +
-	"\vwifi_status\x18\x02 \x01(\v2\v.WifiStatusH\x00R\n" +
-	"wifiStatus\x12,\n" +
-	"\tsw_status\x18\x03 \x01(\v2\r.LoadSwStatusH\x00R\bswStatus\x12(\n" +
-	"\tuart_data\x18\x04 \x01(\v2\t.UartDataH\x00R\buartDataB\t\n" +
-	"\apayloadB\x0fZ\rodroid-tui/pbb\x06proto3"
-
-var (
-	file_status_proto_rawDescOnce sync.Once
-	file_status_proto_rawDescData []byte
-)
-
-func file_status_proto_rawDescGZIP() []byte {
-	file_status_proto_rawDescOnce.Do(func() {
-		file_status_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_status_proto_rawDesc), len(file_status_proto_rawDesc)))
-	})
-	return file_status_proto_rawDescData
-}
-
-var file_status_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
-var file_status_proto_goTypes = []any{
-	(*SensorChannelData)(nil), // 0: SensorChannelData
-	(*SensorData)(nil),        // 1: SensorData
-	(*WifiStatus)(nil),        // 2: WifiStatus
-	(*UartData)(nil),          // 3: UartData
-	(*LoadSwStatus)(nil),      // 4: LoadSwStatus
-	(*StatusMessage)(nil),     // 5: StatusMessage
-}
-var file_status_proto_depIdxs = []int32{
-	0, // 0: SensorData.usb:type_name -> SensorChannelData
-	0, // 1: SensorData.main:type_name -> SensorChannelData
-	0, // 2: SensorData.vin:type_name -> SensorChannelData
-	1, // 3: StatusMessage.sensor_data:type_name -> SensorData
-	2, // 4: StatusMessage.wifi_status:type_name -> WifiStatus
-	4, // 5: StatusMessage.sw_status:type_name -> LoadSwStatus
-	3, // 6: StatusMessage.uart_data:type_name -> UartData
-	7, // [7:7] is the sub-list for method output_type
-	7, // [7:7] is the sub-list for method input_type
-	7, // [7:7] is the sub-list for extension type_name
-	7, // [7:7] is the sub-list for extension extendee
-	0, // [0:7] is the sub-list for field type_name
-}
-
-func init() { file_status_proto_init() }
-func file_status_proto_init() {
-	if File_status_proto != nil {
-		return
-	}
-	file_status_proto_msgTypes[5].OneofWrappers = []any{
-		(*StatusMessage_SensorData)(nil),
-		(*StatusMessage_WifiStatus)(nil),
-		(*StatusMessage_SwStatus)(nil),
-		(*StatusMessage_UartData)(nil),
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: unsafe.Slice(unsafe.StringData(file_status_proto_rawDesc), len(file_status_proto_rawDesc)),
-			NumEnums:      0,
-			NumMessages:   6,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_status_proto_goTypes,
-		DependencyIndexes: file_status_proto_depIdxs,
-		MessageInfos:      file_status_proto_msgTypes,
-	}.Build()
-	File_status_proto = out.File
-	file_status_proto_goTypes = nil
-	file_status_proto_depIdxs = nil
-}
--- a/example/powermate-console-frontend/styles.go
+++ b/example/powermate-console-frontend/styles.go
@@ -1,43 +0,0 @@
-package main
-
-import "github.com/charmbracelet/lipgloss"
-
-// --- [색상 정의] ---
-const (
-	ColorPurple = lipgloss.Color("#7D56F4")
-	ColorGreen  = lipgloss.Color("#00AF87")
-	ColorRed    = lipgloss.Color("#FF5F87")
-	ColorGray   = lipgloss.Color("#404040")
-	ColorText   = lipgloss.Color("#FAFAFA")
-	ColorBlue   = lipgloss.Color("#335588")
-)
-
-// --- [스타일 정의] ---
-var (
-	loginBoxStyle = lipgloss.NewStyle().
-		Border(lipgloss.RoundedBorder()).
-		BorderForeground(ColorPurple).
-		Padding(1, 2).
-		Width(40).
-		Align(lipgloss.Left)
-
-	settingsBoxStyle = lipgloss.NewStyle().
-		Border(lipgloss.RoundedBorder()).
-		BorderForeground(ColorBlue).
-		Padding(1, 2).
-		Width(60).
-		// [수정] Height, MinHeight 제거: 내용물에 따라 높이 자동 조절 (숨겨진 필드 대응)
-		Align(lipgloss.Left)
-
-	panelBaseStyle = lipgloss.NewStyle().
-		Border(lipgloss.RoundedBorder()).
-		Padding(0, 1).
-		Align(lipgloss.Center)
-
-	titleStyle = lipgloss.NewStyle().Bold(true).MarginBottom(1)
-	lblStyle   = lipgloss.NewStyle().Foreground(lipgloss.Color("#888888")).MarginRight(1)
-
-	statusOn  = lipgloss.NewStyle().Foreground(ColorGreen).Bold(true)
-	statusOff = lipgloss.NewStyle().Foreground(ColorRed).Bold(true)
-	errStyle  = lipgloss.NewStyle().Foreground(ColorRed)
-)
--- a/example/powermate-console-frontend/terminal.go
+++ b/example/powermate-console-frontend/terminal.go
@@ -1,83 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"os"
-
-	tea "github.com/charmbracelet/bubbletea"
-	"github.com/gorilla/websocket"
-	"golang.org/x/term"
-	"google.golang.org/protobuf/proto"
-	"odroid-tui/pb"
-)
-
-func startRawTerminal(m *model) tea.Cmd {
-	return func() tea.Msg {
-		fd := int(os.Stdin.Fd())
-		oldState, err := term.MakeRaw(fd)
-		if err != nil {
-			return err
-		}
-		defer term.Restore(fd, oldState)
-		fmt.Print("\033[2J\033[H")
-		fmt.Printf("\r\n\033[32m--- Terminal Connected (Ctrl+A to exit) ---\033[0m\r\n")
-
-		u := fmt.Sprintf("ws://%s/ws?token=%s", m.connDetails.IP, m.connDetails.Token)
-		ws, _, err := websocket.DefaultDialer.Dial(u, nil)
-		if err != nil {
-			return err
-		}
-		defer ws.Close()
-
-		done := make(chan struct{})
-		sendChan := make(chan []byte, 256)
-		go func() {
-			for d := range sendChan {
-				ws.WriteMessage(websocket.BinaryMessage, d)
-			}
-		}()
-		go func() {
-			for {
-				_, msg, err := ws.ReadMessage()
-				if err != nil {
-					close(done)
-					return
-				}
-				var st pb.StatusMessage
-				if proto.Unmarshal(msg, &st) == nil {
-					if u := st.GetUartData(); u != nil {
-						os.Stdout.Write(u.GetData())
-					}
-				} else {
-					os.Stdout.Write(msg)
-				}
-			}
-		}()
-
-		buf := make([]byte, 1024)
-		for {
-			n, err := os.Stdin.Read(buf)
-			if err != nil {
-				close(sendChan)
-				return TerminalFinishedMsg{}
-			}
-			if n > 0 {
-				for i := 0; i < n; i++ {
-					if buf[i] == 1 {
-						ws.Close()
-						return TerminalFinishedMsg{}
-					}
-				}
-				d := make([]byte, n)
-				copy(d, buf[:n])
-				sendChan <- d
-			}
-			select {
-			case <-done:
-				close(sendChan)
-				return TerminalFinishedMsg{}
-			default:
-			}
-		}
-	}
-}
--- a/example/powermate-console-frontend/update.go
+++ b/example/powermate-console-frontend/update.go
@@ -1,256 +0,0 @@
-package main
-
-import (
-	"strconv"
-
-	tea "github.com/charmbracelet/bubbletea"
-	"github.com/charmbracelet/huh"
-)
-
-func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
-	switch msg := msg.(type) {
-
-	case tea.KeyMsg:
-		if msg.Type == tea.KeyCtrlC {
-			return m, tea.Quit
-		}
-
-		if m.state == StateSettings {
-			if m.scanning {
-				return m, nil
-			}
-			if msg.Type == tea.KeyEsc {
-				if m.settingSubState != SubMenu {
-					m.settingSubState = SubMenu
-					m.initSettingsMenu()
-					return m, m.settingsForm.Init()
-				}
-				m.state = StateDashboard
-				m.err = nil
-				return m, nil
-			}
-		}
-
-		if m.state == StateDashboard {
-			switch msg.String() {
-			case "enter":
-				m.state = StateTerminal
-				return m, tea.Sequence(tea.ExitAltScreen, startRawTerminal(&m))
-			case "s":
-				return m, fetchSettings(*m.connDetails)
-			case "u":
-				return m, toggleLoad(*m.connDetails, "load_5v_on", !m.status.Sw.UsbOn)
-			case "m":
-				return m, toggleLoad(*m.connDetails, "load_12v_on", !m.status.Sw.MainOn)
-			case "q":
-				return m, tea.Quit
-			}
-		}
-
-	case tea.WindowSizeMsg:
-		m.width = msg.Width
-		m.height = msg.Height
-
-	case LoginSuccessMsg:
-		m.connDetails.Token = string(msg)
-		m.state = StateDashboard
-		return m, tea.Batch(
-			connectWebSocket(*m.connDetails),
-			fetchInitialState(*m.connDetails),
-		)
-
-	case InitStateMsg:
-		m.status.Sw.MainOn = msg.MainOn
-		m.status.Sw.UsbOn = msg.UsbOn
-		return m, nil
-
-	case SettingsFetchedMsg:
-		m.settingsData = SettingsPayload(msg)
-		if m.settingsData.CurIP.IP != "" {
-			m.settingsData.IP = m.settingsData.CurIP.IP
-			m.settingsData.Gateway = m.settingsData.CurIP.Gateway
-			m.settingsData.Subnet = m.settingsData.CurIP.Subnet
-			m.settingsData.DNS1 = m.settingsData.CurIP.DNS1
-			m.settingsData.DNS2 = m.settingsData.CurIP.DNS2
-		}
-
-		m.settingSubState = SubMenu
-		m.initSettingsMenu()
-		m.state = StateSettings
-		return m, m.settingsForm.Init()
-
-	case WifiScanListMsg:
-		m.scanning = false
-		m.wifiScanList = []WifiAP(msg)
-		m.settingSubState = SubWifiScanList
-		m.initWifiScanForm()
-		return m, m.settingsForm.Init()
-
-	case ActionDoneMsg:
-		m.err = nil
-		return m, fetchSettings(*m.connDetails)
-
-	case WsPartialMsg:
-		if msg.Vin != nil {
-			m.status.Vin = *msg.Vin
-		}
-		if msg.Main != nil {
-			m.status.Main = *msg.Main
-		}
-		if msg.Usb != nil {
-			m.status.Usb = *msg.Usb
-		}
-		if msg.Wifi != nil {
-			m.status.Wifi = *msg.Wifi
-		}
-		if msg.Sw != nil {
-			m.status.Sw = *msg.Sw
-		}
-		return m, waitForWebSocketMessage(msg.Conn)
-
-	case TerminalFinishedMsg:
-		m.state = StateDashboard
-		return m, tea.Sequence(tea.EnterAltScreen, tea.ClearScreen)
-
-	case error:
-		m.scanning = false
-		m.err = msg
-		if m.state == StateLogin {
-			if m.loginForm == nil {
-				m.initLoginForm()
-			}
-			return m, m.loginForm.Init()
-		}
-		return m, nil
-	}
-
-	// 1. Login Form Update
-	if m.state == StateLogin && m.loginForm != nil {
-		form, cmd := m.loginForm.Update(msg)
-		if f, ok := form.(*huh.Form); ok {
-			m.loginForm = f
-			if m.loginForm.State == huh.StateCompleted {
-				*m.connDetails = *m.formData
-				return m, performLogin(*m.connDetails)
-			}
-		}
-		return m, cmd
-	}
-
-	// 2. Settings Form Update
-	if m.state == StateSettings && m.settingsForm != nil {
-		form, cmd := m.settingsForm.Update(msg)
-		if f, ok := form.(*huh.Form); ok {
-			m.settingsForm = f
-
-			if m.settingsForm.State == huh.StateCompleted {
-
-				if m.settingSubState == SubMenu {
-					selection := f.GetString("menu_select")
-
-					switch selection {
-					case "scan":
-						m.scanning = true
-						return m, scanWifi(*m.connDetails)
-					case "manual":
-						m.settingSubState = SubWifiConnect
-						m.initWifiForm()
-					case "ip":
-						m.settingSubState = SubIPConfig
-						m.initIPForm()
-					case "ap":
-						m.settingSubState = SubAPMode
-						m.initAPForm()
-					case "system":
-						m.settingSubState = SubSystem
-						m.initSystemForm()
-					case "safety":
-						m.settingSubState = SubSafety
-						m.initSafetyForm()
-					case "account":
-						m.settingSubState = SubAccount
-						m.initAccountForm()
-					case "reboot":
-						return m, rebootDevice(*m.connDetails)
-					case "exit":
-						m.state = StateDashboard
-						return m, nil
-					}
-					return m, m.settingsForm.Init()
-				}
-
-				if m.settingSubState == SubWifiScanList {
-					selectedSSID := f.GetString("scan_ssid")
-					if selectedSSID == "" {
-						m.settingSubState = SubMenu
-						m.initSettingsMenu()
-						return m, m.settingsForm.Init()
-					}
-					m.settingsData.WifiSSID = selectedSSID
-					m.settingSubState = SubWifiConnect
-					m.initWifiForm()
-					return m, m.settingsForm.Init()
-				}
-
-				switch m.settingSubState {
-				case SubWifiConnect:
-					payload := map[string]string{
-						"ssid":     m.settingsData.WifiSSID,
-						"password": m.settingsData.WifiPass,
-					}
-					return m, saveSettingsMap(*m.connDetails, payload)
-
-				case SubIPConfig:
-					payload := map[string]interface{}{"net_type": m.settingsData.NetType}
-					if m.settingsData.NetType == "static" {
-						payload["ip"] = m.settingsData.IP
-						payload["gateway"] = m.settingsData.Gateway
-						payload["subnet"] = m.settingsData.Subnet
-						payload["dns1"] = m.settingsData.DNS1
-						payload["dns2"] = m.settingsData.DNS2
-					}
-					return m, saveSettingsMap(*m.connDetails, payload)
-
-				case SubAPMode:
-					payload := map[string]string{"mode": m.settingsData.Mode}
-					if m.settingsData.Mode == "apsta" {
-						payload["ap_ssid"] = m.settingsData.APSSID
-						payload["ap_password"] = m.settingsData.APPass
-					}
-					return m, saveSettingsMap(*m.connDetails, payload)
-
-				case SubSystem:
-					// [수정] 백엔드 한계로 인해 순차적(Sequential) 전송 필수
-					// baudrate 변경 요청 -> period 변경 요청
-					return m, tea.Sequence(
-						saveSettingsMap(*m.connDetails, map[string]interface{}{"baudrate": m.settingsData.Baudrate}),
-						saveSettingsMap(*m.connDetails, map[string]interface{}{"period": m.settingsData.Period}),
-					)
-
-				case SubSafety:
-					// Safety 설정은 백엔드에서 한 번에 처리가 가능하므로 하나로 묶음
-					valVin, _ := strconv.ParseFloat(f.GetString("vin_limit"), 64)
-					valMain, _ := strconv.ParseFloat(f.GetString("main_limit"), 64)
-					valUsb, _ := strconv.ParseFloat(f.GetString("usb_limit"), 64)
-
-					payload := map[string]interface{}{
-						"vin_current_limit":  valVin,
-						"main_current_limit": valMain,
-						"usb_current_limit":  valUsb,
-					}
-					return m, saveSettingsMap(*m.connDetails, payload)
-
-				case SubAccount:
-					payload := map[string]string{
-						"new_username": m.settingsData.NewUser,
-						"new_password": m.settingsData.NewPass,
-					}
-					return m, saveSettingsMap(*m.connDetails, payload)
-				}
-			}
-		}
-		return m, cmd
-	}
-
-	return m, nil
-}
--- a/example/powermate-console-frontend/view.go
+++ b/example/powermate-console-frontend/view.go
@@ -1,100 +0,0 @@
-package main
-
-import (
-	"fmt"
-
-	"github.com/charmbracelet/lipgloss"
-)
-
-func (m model) View() string {
-	errView := ""
-	if m.err != nil {
-		errView = fmt.Sprintf("\n%s", errStyle.Render(fmt.Sprintf("ERROR: %v", m.err)))
-	}
-
-	if m.state == StateLogin {
-		content := ""
-		if m.loginForm != nil {
-			content = m.loginForm.View()
-		}
-		return lipgloss.Place(m.width, m.height, lipgloss.Center, lipgloss.Center,
-			loginBoxStyle.Render(content+errView))
-	}
-
-	if m.state == StateSettings {
-		// [수정] 스캔 중이면 로딩 화면 표시
-		if m.scanning {
-			return lipgloss.Place(m.width, m.height, lipgloss.Center, lipgloss.Center,
-				settingsBoxStyle.Render("Scanning Wi-Fi Networks...\nPlease wait."))
-		}
-
-		content := ""
-		if m.settingsForm != nil {
-			content = m.settingsForm.View()
-		}
-
-		helpMsg := "\n[Enter] Select/Save   [Esc] Back/Cancel"
-		box := settingsBoxStyle.Render(content + lipgloss.NewStyle().Foreground(ColorGray).Render(helpMsg))
-		return lipgloss.Place(m.width, m.height, lipgloss.Center, lipgloss.Center, box+errView)
-	}
-
-	if m.state == StateTerminal {
-		return ""
-	}
-
-	// Dashboard
-	wifiTxt := "WiFi: Disconnected"
-	if m.status.Wifi.SSID != "" {
-		wifiTxt = fmt.Sprintf("WiFi: %s (%ddBm)", m.status.Wifi.SSID, m.status.Wifi.RSSI)
-	}
-	header := lipgloss.NewStyle().Width(m.width).Background(ColorPurple).Foreground(ColorText).Padding(0, 1).Bold(true).Render(wifiTxt)
-
-	panelW := (m.width - 6) / 3
-	if panelW < 22 {
-		panelW = 22
-	}
-	currPanelStyle := panelBaseStyle.Copy().Width(panelW)
-
-	renderMetric := func(label string, val float64, unit string, color lipgloss.Color) string {
-		return fmt.Sprintf("%s%s", lblStyle.Render(label), lipgloss.NewStyle().Foreground(color).Bold(true).Render(fmt.Sprintf("%6.2f %s", val, unit)))
-	}
-
-	pVin := currPanelStyle.Copy().BorderForeground(ColorBlue).Render(lipgloss.JoinVertical(lipgloss.Center,
-		titleStyle.Foreground(ColorBlue).Render("VIN (Input)"),
-		renderMetric("VOLT:", m.status.Vin.Voltage, "V", ColorBlue),
-		renderMetric("CURR:", m.status.Vin.Current, "A", ColorBlue),
-		renderMetric("POWR:", m.status.Vin.Power, "W", ColorBlue),
-	))
-
-	mColor := ColorRed
-	mTitle := "MAIN [OFF]"
-	if m.status.Sw.MainOn {
-		mColor = ColorGreen
-		mTitle = "MAIN [ON]"
-	}
-	pMain := currPanelStyle.Copy().BorderForeground(mColor).Render(lipgloss.JoinVertical(lipgloss.Center,
-		titleStyle.Foreground(mColor).Render(mTitle),
-		renderMetric("VOLT:", m.status.Main.Voltage, "V", mColor),
-		renderMetric("CURR:", m.status.Main.Current, "A", mColor),
-		renderMetric("POWR:", m.status.Main.Power, "W", mColor),
-	))
-
-	uColor := ColorRed
-	uTitle := "USB [OFF]"
-	if m.status.Sw.UsbOn {
-		uColor = ColorGreen
-		uTitle = "USB [ON]"
-	}
-	pUsb := currPanelStyle.Copy().BorderForeground(uColor).Render(lipgloss.JoinVertical(lipgloss.Center,
-		titleStyle.Foreground(uColor).Render(uTitle),
-		renderMetric("VOLT:", m.status.Usb.Voltage, "V", uColor),
-		renderMetric("CURR:", m.status.Usb.Current, "A", uColor),
-		renderMetric("POWR:", m.status.Usb.Power, "W", uColor),
-	))
-
-	panels := lipgloss.PlaceHorizontal(m.width, lipgloss.Center, lipgloss.JoinHorizontal(lipgloss.Top, pVin, pMain, pUsb))
-	help := lipgloss.NewStyle().Foreground(ColorGray).Render(" [Enter] Terminal   [s] Settings   [u] Toggle USB   [m] Toggle Main   [q] Quit")
-	footer := lipgloss.PlaceHorizontal(m.width, lipgloss.Center, help)
-
-	return lipgloss.JoinVertical(lipgloss.Left, header, "\n\n", panels, "\n\n", footer+errView)
-}
--- a/main/service/setting.c
+++ b/main/service/setting.c
@@ -187,10 +187,6 @@ static esp_err_t setting_post_handler(httpd_req_t* req)
    cJSON* new_username_item = cJSON_GetObjectItem(root, "new_username");
    cJSON* new_password_item = cJSON_GetObjectItem(root, "new_password");

-    bool action_taken = false;
-
-    cJSON* resp_root = cJSON_CreateObject();
-
    if (mode_item && cJSON_IsString(mode_item))
    {
        const char* mode = mode_item->valuestring;
@@ -207,6 +203,12 @@ static esp_err_t setting_post_handler(httpd_req_t* req)
                {
                    nconfig_write(AP_SSID, ap_ssid_item->valuestring);
                }
+                else
+                {
+                    httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "AP SSID required for APSTA mode");
+                    cJSON_Delete(root);
+                    return ESP_FAIL;
+                }

                if (ap_pass_item && cJSON_IsString(ap_pass_item))
                {
@@ -214,17 +216,19 @@ static esp_err_t setting_post_handler(httpd_req_t* req)
                }
                else
                {
-                    nconfig_delete(AP_PASSWORD);
+                    nconfig_delete(AP_PASSWORD); // Open network
                }
            }

            wifi_switch_mode(mode);
-            cJSON_AddStringToObject(resp_root, "mode_status", "initiated");
-            action_taken = true;
+            httpd_resp_sendstr(req, "{\"status\":\"mode_switch_initiated\"}");
+        }
+        else
+        {
+            httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Invalid mode");
        }
    }
-
-    if (net_type_item && cJSON_IsString(net_type_item))
+    else if (net_type_item && cJSON_IsString(net_type_item))
    {
        const char* type = net_type_item->valuestring;
        ESP_LOGI(TAG, "Received network config: %s", type);
@@ -256,52 +260,50 @@ static esp_err_t setting_post_handler(httpd_req_t* req)
                    nconfig_delete(NETIF_DNS2);

                wifi_use_static(ip, gw, sn, d1, d2);
-                cJSON_AddStringToObject(resp_root, "net_status", "static_applied");
-                action_taken = true;
+                httpd_resp_sendstr(req, "{\"status\":\"static_config_applied\"}");
+            }
+            else
+            {
+                httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Missing static IP fields");
            }
        }
        else if (strcmp(type, "dhcp") == 0)
        {
            nconfig_write(NETIF_TYPE, "dhcp");
            wifi_use_dhcp();
-            cJSON_AddStringToObject(resp_root, "net_status", "dhcp_applied");
-            action_taken = true;
+            httpd_resp_sendstr(req, "{\"status\":\"dhcp_config_applied\"}");
        }
    }
-
-    // 3. WiFi Connect - [수정] else if -> if
-    if (ssid_item && cJSON_IsString(ssid_item))
+    else if (ssid_item && cJSON_IsString(ssid_item))
    {
        cJSON* pass_item = cJSON_GetObjectItem(root, "password");
        if (cJSON_IsString(pass_item))
        {
+            httpd_resp_sendstr(req, "{\"status\":\"connection_initiated\"}");
+
            wifi_sta_set_ap(ssid_item->valuestring, pass_item->valuestring);
-            cJSON_AddStringToObject(resp_root, "wifi_status", "connecting");
-            action_taken = true;
+        }
+        else
+        {
+            httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Password required");
        }
    }
-
-    // 4. Baudrate - [수정] else if -> if
-    if (baud_item && cJSON_IsString(baud_item))
+    else if (baud_item && cJSON_IsString(baud_item))
    {
        const char* baudrate = baud_item->valuestring;
        ESP_LOGI(TAG, "Received baudrate set request: %s", baudrate);
        nconfig_write(UART_BAUD_RATE, baudrate);
        change_baud_rate(strtol(baudrate, NULL, 10));
-        cJSON_AddStringToObject(resp_root, "baudrate_status", "updated");
-        action_taken = true;
+        httpd_resp_sendstr(req, "{\"status\":\"baudrate_updated\"}");
    }
-
-    if (period_item && cJSON_IsString(period_item))
+    else if (period_item && cJSON_IsString(period_item))
    {
        const char* period_str = period_item->valuestring;
        ESP_LOGI(TAG, "Received period set request: %s", period_str);
        update_sensor_period(strtol(period_str, NULL, 10));
-        cJSON_AddStringToObject(resp_root, "period_status", "updated");
-        action_taken = true;
+        httpd_resp_sendstr(req, "{\"status\":\"period_updated\"}");
    }
-
-    if (vin_climit_item || main_climit_item || usb_climit_item)
+    else if (vin_climit_item || main_climit_item || usb_climit_item)
    {
        char num_buf[10];
        if (vin_climit_item && cJSON_IsNumber(vin_climit_item))
@@ -334,12 +336,10 @@ static esp_err_t setting_post_handler(httpd_req_t* req)
                climit_set_usb(val);
            }
        }
-        cJSON_AddStringToObject(resp_root, "climit_status", "updated");
-        action_taken = true;
+        httpd_resp_sendstr(req, "{\"status\":\"current_limit_updated\"}");
    }
-
-    if (new_username_item && cJSON_IsString(new_username_item) && new_password_item &&
-        cJSON_IsString(new_password_item))
+    else if (new_username_item && cJSON_IsString(new_username_item) && new_password_item &&
+             cJSON_IsString(new_password_item))
    {
        const char* new_username = new_username_item->valuestring;
        const char* new_password = new_password_item->valuestring;
@@ -347,23 +347,13 @@ static esp_err_t setting_post_handler(httpd_req_t* req)
        nconfig_write(PAGE_USERNAME, new_username);
        nconfig_write(PAGE_PASSWORD, new_password);
        ESP_LOGI(TAG, "Username and password updated successfully.");
-        cJSON_AddStringToObject(resp_root, "auth_status", "updated");
-        action_taken = true;
-    }
-
-    if (action_taken)
-    {
-        cJSON_AddStringToObject(resp_root, "status", "ok");
-        char* resp_str = cJSON_PrintUnformatted(resp_root);
-        httpd_resp_sendstr(req, resp_str);
-        free(resp_str);
+        httpd_resp_sendstr(req, "{\"status\":\"user_credentials_updated\"}");
    }
    else
    {
-        httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Invalid payload or no known parameters");
+        httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Invalid payload");
    }

-    cJSON_Delete(resp_root);
    cJSON_Delete(root);
    return ESP_OK;
 }
--- a/page/src/main.js
+++ b/page/src/main.js
@@ -202,7 +202,7 @@ async function handleUserSettingsSubmit(event) {

    try {
        const response = await api.updateUserSettings(newUsername, newPassword);
-        if (response && (response.status === 'ok' || response.auth_status === 'updated')) {
+        if (response && response.status === 'user_credentials_updated') {
            alert('Username and password updated successfully. Please log in again with new credentials.');
            handleLogout(); // Force logout to re-authenticate with new credentials
        } else {
--- a/page/src/ui.js
+++ b/page/src/ui.js
@@ -184,7 +184,7 @@ export async function connectToWifi() {

    try {
        const result = await api.postWifiConnect(ssid, password);
-        if (result.status === 'ok' || result.wifi_status === 'connecting') {
+        if (result.status === 'connection_initiated') {
            wifiModal.hide();
            setTimeout(() => {
                alert(`Connection to "${ssid}" initiated. The device will try to reconnect. Please check the Wi-Fi status icon.`);
Author	SHA1	Message	Date
YoungSoo Shin	cb5b9c7d5e	console-frontend: add settings management UI and device API integration Signed-off-by: YoungSoo Shin <shinys000114@gmail.com>	2025-12-12 18:40:24 +09:00
YoungSoo Shin	edf6cf40cb	(WIP) console-frontend: initial implementation of TUI dashboard, API client, WebSocket handling, and protocol buffer support Signed-off-by: YoungSoo Shin <shinys000114@gmail.com>	2025-12-12 18:31:20 +09:00