chore: cleanup dead code and unused files

Deleted 7 unused frontend components (ChatBubble, PetZone, Live2DCat,
BackgroundScene, Clock, Toolbar, types/index.ts).
Deleted unused backend: whisper_stream.py, empty models/ and routers/ dirs.
Removed dead code: Message interface, messages/micError/sendText/addMessage,
conversation_text handler, 3 unused memory.py methods.
Fixed task persistence bug: added 'tasks' to DEFAULT_PREFERENCES.
Stale comment in Live2DStage updated.

backend/main.py

@@ -383,29 +383,6 @@ async def gemini_voice_ws(websocket: WebSocket):
                             await gemini_ws.send(json.dumps(gemini_msg))
                         continue
 
-                    if msg_type == "conversation_text":
-                        text = msg.get("text", "").strip()
-                        if not text:
-                            continue
-                        logger.info(f"[{session_id}] User (text): {text}")
-                        if gemini_ws and gemini_ws.state.name == "OPEN":
-                            user_part = {"text": text}
-                            if memory_suffix:
-                                user_part = {"text": f"[Context: {memory_suffix}]\n{text}"}
-                            gemini_msg = {
-                                "clientContent": {
-                                    "turns": [{"role": "user", "parts": [user_part]}],
-                                    "turnComplete": True,
-                                }
-                            }
-                            await gemini_ws.send(json.dumps(gemini_msg))
-                            await websocket.send_json({
-                                "type": "transcript",
-                                "role": "user",
-                                "text": text,
-                            })
-                        continue
-
                     if msg_type == "ping":
                         await websocket.send_json({"type": "pong"})
 

backend/services/memory.py

@@ -134,57 +134,12 @@ class KiraMemory:
 
         return "\n\n---\n### What Kira remembers:" + "".join(parts)
 
-    def store_messages(
-        self,
-        user_message: str,
-        kira_message: str,
-    ) -> None:
-        """Store a conversation exchange in Honcho."""
-        if not self.enabled or not self._session:
-            return
-
-        try:
-            messages = []
-            if self._user_peer:
-                messages.append(
-                    self._user_peer.message(user_message)
-                )
-            if self._kira_peer:
-                messages.append(
-                    self._kira_peer.message(kira_message)
-                )
-
-            if messages:
-                self._session.add_messages(messages)
-                logger.debug("Stored conversation exchange in Honcho")
-        except Exception as e:
-            logger.warning(f"Failed to store messages: {e}")
-
-    def store_user_message(self, text: str) -> None:
-        """Store a single user message."""
-        if not self.enabled or not self._session or not self._user_peer:
-            return
-        try:
-            self._session.add_messages([self._user_peer.message(text)])
-        except Exception as e:
-            logger.warning(f"Failed to store user message: {e}")
-
-    def store_kira_message(self, text: str) -> None:
-        """Store a single Kira message."""
-        if not self.enabled or not self._session or not self._kira_peer:
-            return
-        try:
-            self._session.add_messages([self._kira_peer.message(text)])
-        except Exception as e:
-            logger.warning(f"Failed to store Kira message: {e}")
-
-    # ─── User preferences (stored in Honcho peer metadata) ───
-
     DEFAULT_PREFERENCES: dict[str, str] = {
         "name": "",
         "scene": "cozy-room",
         "outfit": "cozy-hoodie",
         "accessory": "",
+        "tasks": "[]",
     }
 
     def get_user_preferences(self, user_id: str) -> dict[str, str]:

backend/services/whisper_stream.py

@@ -1,158 +0,0 @@
-"""Realtime streaming transcription service via gpt-realtime-whisper.
-
-Connects to OpenAI Realtime API via WebSocket, configures the session
-for pure transcription (no model responses), and streams word-level
-transcript deltas back. Full utterances are then processed by the
-cheap LLM + TTS pipeline.
-"""
-
-import json
-import base64
-import logging
-import asyncio
-from typing import Callable, Awaitable
-from config import settings
-
-logger = logging.getLogger("kira.whisper")
-
-
-class WhisperStream:
-    """Streaming transcription via gpt-realtime-whisper over WebSocket."""
-
-    def __init__(
-        self,
-        on_transcript_delta: Callable[[str], Awaitable[None]],
-        on_transcript_done: Callable[[str], Awaitable[None]],
-        on_ready: Callable[[], Awaitable[None]],
-        on_error: Callable[[str], Awaitable[None]],
-    ):
-        self._on_delta = on_transcript_delta
-        self._on_done = on_transcript_done
-        self._on_ready = on_ready
-        self._on_error = on_error
-        self._conn = None
-        self._connected = False
-        self._transcript = ""
-
-    async def connect(self):
-        if self._connected:
-            return
-
-        try:
-            import websockets
-
-            url = "wss://api.openai.com/v1/realtime?model=gpt-4o-realtime-preview"
-            ws = await websockets.connect(
-                url,
-                additional_headers={
-                    "Authorization": f"Bearer {settings.openai_api_key}",
-                },
-            )
-
-            async with ws as conn:
-                self._conn = conn
-                self._connected = True
-                logger.info("Connected to Realtime transcription session")
-
-                # Configure: transcribe only with gpt-realtime-whisper, no model responses
-                await self._send({
-                    "type": "session.update",
-                    "session": {
-                        "input_audio_format": "pcm16",
-                        "input_audio_transcription": {
-                            "model": "gpt-realtime-whisper",
-                            "enabled": True,
-                        },
-                        "turn_detection": {
-                            "type": "server_vad",
-                            "threshold": 0.5,
-                            "prefix_padding_ms": 300,
-                            "silence_duration_ms": 600,
-                        },
-                    },
-                })
-
-                await self._on_ready()
-
-                while self._connected:
-                    try:
-                        raw = await conn.recv()
-                        if isinstance(raw, (str, bytes)):
-                            data = json.loads(raw if isinstance(raw, str) else raw.decode())
-                            await self._handle(data)
-                    except Exception as e:
-                        if self._connected:
-                            logger.warning(f"recv: {e}")
-                        break
-
-        except Exception as e:
-            logger.error(f"Whisper stream error: {e}")
-            await self._on_error(str(e))
-        finally:
-            self._connected = False
-            self._conn = None
-
-    async def _handle(self, data: dict):
-        et = data.get("type", "")
-
-        if et == "input_audio_buffer.speech_started":
-            self._transcript = ""
-            logger.debug("speech_started")
-
-        elif et in ("conversation.item.input_audio_transcription.delta", "input_audio_buffer.transcription.delta"):
-            # Partial streaming transcript
-            delta = data.get("delta", "") or data.get("transcript", "")
-            if delta:
-                self._transcript = delta  # or append if cumulative
-                await self._on_delta(delta)
-
-        elif et in ("conversation.item.input_audio_transcription.completed", "input_audio_buffer.transcription.completed", "conversation.item.created"):
-            # Final or item created with transcript
-            item = data.get("item", {})
-            content = item.get("content", []) if item else []
-            transcript = data.get("transcript", "")
-            if not transcript:
-                for part in (content or []):
-                    if part.get("type") in ("transcript", "text"):
-                        transcript = part.get("transcript", "") or part.get("text", "")
-                        break
-            if transcript:
-                self._transcript = transcript
-                await self._on_delta(transcript)
-                await self._on_done(transcript.strip())
-                self._transcript = ""
-
-        elif et == "input_audio_buffer.speech_stopped":
-            if self._transcript.strip():
-                await self._on_done(self._transcript.strip())
-            self._transcript = ""
-
-        elif et == "error":
-            err = data.get("error", {})
-            msg = err.get("message", str(data))
-            logger.warning(f"Whisper error: {msg}")
-            await self._on_error(msg)
-
-    async def send_audio(self, pcm16_bytes: bytes):
-        if not self._connected:
-            return
-        try:
-            b64 = base64.b64encode(pcm16_bytes).decode("utf-8")
-            await self._send({"type": "input_audio_buffer.append", "audio": b64})
-        except Exception as e:
-            logger.warning(f"send audio: {e}")
-
-    async def _send(self, data: dict):
-        try:
-            await self._conn.send(json.dumps(data))
-        except Exception as e:
-            logger.warning(f"send: {e}")
-
-    async def disconnect(self):
-        self._connected = False
-        if self._conn:
-            try:
-                await self._conn.close()
-            except Exception:
-                pass
-        self._conn = None

frontend/src/App.tsx

@@ -16,7 +16,6 @@ import { useConversation } from './hooks/useConversation';
 export default function App() {
   const [isLoggedIn, setIsLoggedIn] = useState(() => sessionStorage.getItem('kira-auth') === '1');
   const {
-    messages,
     isConnected,
     isKiraSpeaking,
     isRecording,

frontend/src/components/BackgroundScene.tsx

@@ -1,35 +0,0 @@
-import { SCENES } from './scenes';
-
-interface Props {
-  currentScene: string;
-  onSelect: (id: string) => void;
-}
-
-export default function BackgroundScene({ currentScene, onSelect }: Props) {
-  return (
-    <div className="p-4">
-      <h3 className="text-sm font-bold text-kira-plum mb-3 flex items-center gap-2">
-        <span>🎨</span> Scene
-      </h3>
-      <div className="flex flex-wrap gap-2">
-        {SCENES.map((s) => (
-          <button
-            key={s.id}
-            onClick={() => onSelect(s.id)}
-            className={`
-              flex items-center gap-1.5 px-3 py-1.5 rounded-xl text-sm font-medium transition-all
-              ${currentScene === s.id
-                ? 'bg-kira-pink text-white shadow-md scale-105'
-                : 'bg-white/50 text-kira-plum/70 hover:bg-kira-glow hover:scale-102'
-              }
-            `}
-            title={s.name}
-          >
-            <span>{s.icon}</span>
-            <span className="hidden sm:inline">{s.name}</span>
-          </button>
-        ))}
-      </div>
-    </div>
-  );
-}

frontend/src/components/ChatBubble.tsx

@@ -1,85 +0,0 @@
-import { useRef, useEffect } from 'react';
-
-interface Message {
-  id: string;
-  role: 'user' | 'kira';
-  text: string;
-  timestamp: number;
-}
-
-interface Props {
-  messages: Message[];
-  isKiraSpeaking: boolean;
-  userName?: string;
-}
-
-export default function ChatBubble({ messages, isKiraSpeaking }: Props) {
-  const bottomRef = useRef<HTMLDivElement>(null);
-
-  useEffect(() => {
-    bottomRef.current?.scrollIntoView({ behavior: 'smooth' });
-  }, [messages]);
-
-  return (
-    <div className="p-3 flex flex-col" style={{ maxHeight: 160 }}>
-      <h3 className="text-sm font-bold text-kira-plum mb-3 flex items-center gap-2">
-        <span>💬</span> Conversation
-        <span className={`w-2 h-2 rounded-full ${isKiraSpeaking ? 'bg-kira-pink animate-pulse' : 'bg-kira-mint'}`} />
-      </h3>
-
-      <div className="flex-1 overflow-y-auto space-y-2 scrollbar-thin pr-1">
-        {messages.length === 0 && (
-          <div className="text-xs text-kira-plum/30 text-center py-6">
-            click the mic or type to talk to Kira
-          </div>
-        )}
-
-        {messages.map((msg, i) => {
-          const isLastKira = msg.role === 'kira' && i === messages.length - 1 && isKiraSpeaking;
-          return (
-            <div
-              key={msg.id}
-              className={`flex gap-2 ${msg.role === 'user' ? 'justify-end' : 'justify-start'}`}
-            >
-              {msg.role === 'kira' && (
-                <span className="text-sm mt-1">🌸</span>
-              )}
-              <div
-                className={`
-                  max-w-[80%] px-3 py-2 rounded-2xl text-sm leading-relaxed
-                  ${msg.role === 'user'
-                    ? 'bg-kira-lav/30 text-kira-plum rounded-br-md'
-                    : 'bg-white/60 text-kira-plum rounded-bl-md'
-                  }
-                  ${isLastKira ? 'animate-fade-in' : ''}
-                `}
-              >
-                {msg.text}
-                {isLastKira && (
-                  <span className="inline-block w-1.5 h-4 bg-kira-pink/60 ml-0.5 animate-blink" />
-                )}
-              </div>
-              {msg.role === 'user' && (
-                <span className="text-sm mt-1">👤</span>
-              )}
-            </div>
-          );
-        })}
-        <div ref={bottomRef} />
-      </div>
-
-      <style>{`
-        @keyframes fade-in {
-          from { opacity: 0; transform: translateY(4px); }
-          to { opacity: 1; transform: translateY(0); }
-        }
-        @keyframes blink {
-          0%, 100% { opacity: 1; }
-          50% { opacity: 0; }
-        }
-        .animate-fade-in { animation: fade-in 0.3s ease-out; }
-        .animate-blink { animation: blink 0.8s infinite; }
-      `}</style>
-    </div>
-  );
-}

frontend/src/components/Clock.tsx

@@ -1,21 +0,0 @@
-import { useEffect, useState } from 'react';
-
-export default function Clock() {
-  const [time, setTime] = useState(new Date());
-
-  useEffect(() => {
-    const id = setInterval(() => setTime(new Date()), 1000);
-    return () => clearInterval(id);
-  }, []);
-
-  return (
-    <div className="px-5 py-3 text-center">
-      <div className="text-3xl font-bold tracking-tight text-kira-plum">
-        {time.toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' })}
-      </div>
-      <div className="text-xs text-kira-violet/60 font-medium">
-        {time.toLocaleDateString([], { weekday: 'long', month: 'long', day: 'numeric' })}
-      </div>
-    </div>
-  );
-}

frontend/src/components/Live2DCat.tsx

@@ -1,76 +0,0 @@
-import { useEffect, useRef } from 'react';
-
-interface Props {
-  className?: string;
-}
-
-export default function Live2DCat({ className }: Props) {
-  const canvasRef = useRef<HTMLCanvasElement>(null);
-
-  useEffect(() => {
-    let mounted = true;
-    const canvas = canvasRef.current;
-    if (!canvas) return;
-
-    let app: any = null;
-
-    const init = async () => {
-      try {
-        const pixi = await import('pixi.js');
-        const { Live2DModel } = await import('pixi-live2d-display/cubism4');
-        (Live2DModel as any).registerTicker(pixi.Ticker as any);
-
-        const w = canvas.clientWidth || 120;
-        const h = canvas.clientHeight || 120;
-
-        // Use explicit CanvasRenderer to avoid WebGL context conflict with KiraAvatar
-        app = new pixi.Application({
-          view: canvas,
-          width: w,
-          height: h,
-          antialias: true,
-          resolution: Math.min(window.devicePixelRatio || 1, 2),
-          backgroundAlpha: 0,
-          autoDensity: true,
-          // Use WebGL1 context (more compatible with separate contexts)
-          preferWebGLVersion: 1,
-        } as any);
-        if (!mounted) { app.destroy(true); return; }
-
-        const model = await Live2DModel.from('/live2d/models/little-cat/LittleCat.model3.json', {
-          autoInteract: false,
-        });
-        if (!mounted) { app.destroy(true); return; }
-
-        const sw = app.screen.width;
-        const sh = app.screen.height;
-        const s = Math.min((sw * 0.85) / model.width, (sh * 0.85) / model.height);
-        model.scale.set(s);
-        model.anchor.set(0.5, 0.5);
-        model.position.set(sw / 2, sh / 2);
-
-        app.stage.addChild(model as any);
-        (model as any).isInteractive = () => false;
-
-        try { model.motion('Idle'); } catch { /* */ }
-      } catch (e) {
-        console.warn('[Live2DCat]', e);
-      }
-    };
-
-    init();
-
-    return () => {
-      mounted = false;
-      if (app) { app.destroy(true, { children: true }); }
-    };
-  }, []);
-
-  return (
-    <canvas
-      ref={canvasRef}
-      className={className}
-      style={{ display: 'block' }}
-    />
-  );
-}

frontend/src/components/Live2DStage.tsx

@@ -11,7 +11,7 @@ interface Props {
 /**
  * Single full-viewport Live2D stage. One WebGL context, two models:
  *   - Kira (center panel)
- *   - Mochi the cat (PetZone, bottom of right sidebar)
+ // Mochi the cat (next to Kira in center panel)
  *
  * Canvas sits above UI panels (z-50, pointer-events: none) so Live2D
  * models render on top of the frosted-glass sidebars.

frontend/src/components/PetZone.tsx

@@ -1,12 +0,0 @@
-export default function PetZone() {
-  return (
-    <div data-petzone className="p-4 relative overflow-hidden" style={{ minHeight: 140 }}>
-      <h3 className="text-sm font-bold text-kira-plum mb-2 flex items-center gap-2">
-        <span>🐱</span> Pet Zone
-      </h3>
-      <div className="flex flex-col items-center pt-2">
-        <span className="text-[10px] text-kira-plum/60 font-medium">Mochi</span>
-      </div>
-    </div>
-  );
-}

frontend/src/components/Toolbar.tsx

@@ -1,34 +0,0 @@
-import { SCENES } from './scenes';
-
-interface Props {
-  currentScene: string;
-  onSceneChange: (id: string) => void;
-}
-
-export default function Toolbar({ currentScene, onSceneChange }: Props) {
-  return (
-    <div className="px-4 py-3 flex items-center justify-between gap-2">
-      <div className="flex items-center gap-3">
-        <span className="text-lg font-bold text-kira-plum">Kira</span>
-        <span className="text-kira-plum/20">|</span>
-        <div className="flex gap-1.5">
-          {SCENES.filter((_, i) => i < 4).map((s) => (
-            <button
-              key={s.id}
-              onClick={() => onSceneChange(s.id)}
-              className={`text-sm ${currentScene === s.id ? 'opacity-100' : 'opacity-40 hover:opacity-70'} transition-opacity`}
-              title={s.name}
-            >
-              {s.icon}
-            </button>
-          ))}
-        </div>
-      </div>
-
-      <div className="flex items-center gap-3 text-sm text-kira-plum/50">
-        <span>🐱 2</span>
-        <span className="hidden sm:inline">focus bestie</span>
-      </div>
-    </div>
-  );
-}

frontend/src/hooks/useConversation.ts

@@ -13,12 +13,6 @@ export interface Task {
   completed: boolean;
 }
 
-interface Message {
-  id: string;
-  role: 'user' | 'kira';
-  text: string;
-  timestamp: number;
-}
 
 const WS_URL = `${location.protocol === 'https:' ? 'wss:' : 'ws:'}//${location.host}/api/ws`;
 const USER_ID_KEY = 'kira-user-id';
@@ -56,7 +50,6 @@ function float32ToPcm16Base64(float32: Float32Array, srcRate: number): string {
 }
 
 export function useConversation() {
-  const [messages, setMessages] = useState<Message[]>([]);
   const [isConnected, setIsConnected] = useState(false);
   const [isKiraSpeaking, setIsKiraSpeaking] = useState(false);
   const [isRecording, setIsRecording] = useState(false);
@@ -68,7 +61,6 @@ export function useConversation() {
     accessory: '',
   });
   const [loadingPrefs, setLoadingPrefs] = useState(true);
-  const [micError, setMicError] = useState<string | null>(null);
   const [tasks, setTasks] = useState<Task[]>([]);
   const [celebrateTrigger, setCelebrateTrigger] = useState(0);
 
@@ -130,7 +122,6 @@ export function useConversation() {
         break;
 
       case 'transcript':
-        addMessage(msg.role === 'user' ? 'user' : 'kira', msg.text);
         break;
 
       case 'audio': {
@@ -220,12 +211,6 @@ export function useConversation() {
     return playbackCtxRef.current;
   }
 
-  const addMessage = useCallback((role: 'user' | 'kira', text: string) => {
-    setMessages((prev) => [
-      ...prev,
-      { id: crypto.randomUUID(), role, text, timestamp: Date.now() },
-    ]);
-  }, []);
 
   // ── Identity ──
   const identify = useCallback((name: string) => {
@@ -248,12 +233,10 @@ export function useConversation() {
   // ── Audio capture via ScriptProcessorNode (PCM16 16kHz stream) ──
   const startRecording = useCallback(async () => {
     if (!navigator.mediaDevices?.getUserMedia) {
-      addMessage('kira', 'Mic requires HTTPS. Try accessing via HTTPS!');
       return;
     }
 
     try {
-      setMicError(null);
       const stream = await navigator.mediaDevices.getUserMedia({
         audio: { echoCancellation: true, noiseSuppression: true, sampleRate: 48000 },
       });
@@ -261,7 +244,6 @@ export function useConversation() {
 
       const ws = wsRef.current;
       if (!ws || ws.readyState !== WebSocket.OPEN) {
-        addMessage('kira', 'Not connected to server yet...');
         stream.getTracks().forEach((t) => t.stop());
         return;
       }
@@ -295,10 +277,9 @@ export function useConversation() {
       setIsRecording(true);
     } catch (err) {
       const msg = err instanceof Error ? err.message : String(err);
-      setMicError(msg);
       console.error('[Kira Mic]', msg);
     }
-  }, [addMessage]);
+  }, []);
 
   const stopRecording = useCallback(() => {
     processorRef.current?.disconnect();
@@ -328,14 +309,12 @@ export function useConversation() {
   }, [connect, stopRecording]);
 
   return {
-    messages,
     isConnected,
     isKiraSpeaking,
     isRecording,
     identified,
     preferences,
     loadingPrefs,
-    micError,
     identify,
     setPreference,
     sendText,

frontend/src/index.css

@@ -7,7 +7,6 @@
   --color-kira-bg: #FFF5F5;
   --color-kira-plum: #4A1942;
   --color-kira-violet: #7C3AED;
-  --color-kira-card: #FFFFFF;
   --color-kira-glow: #FDF2F8;
   --font-nunito: 'Nunito', sans-serif;
 }
@@ -27,14 +26,6 @@ body {
   width: 100vw;
 }
 
-.glass-card {
-  background: rgba(255, 255, 255, 0.7);
-  backdrop-filter: blur(12px);
-  border: 1px solid rgba(255, 182, 193, 0.3);
-  border-radius: 16px;
-  box-shadow: 0 4px 24px rgba(74, 25, 66, 0.08);
-}
-
 .btn-kira {
   background: linear-gradient(135deg, #FFB6C1, #D8B4FE);
   color: white;

frontend/src/types/index.ts

@@ -1,13 +0,0 @@
-import { SCENES, type Scene } from '../components/scenes';
-
-export interface KiraState {
-  currentScene: Scene;
-  isListening: boolean;
-  isSpeaking: boolean;
-  currentOutfit: string;
-  currentAccessory: string | null;
-  sessionNotes: string[];
-}
-
-export type { Scene };
-export { SCENES };

frontend/tsconfig.tsbuildinfo

@@ -1 +1 @@
-{"root":["./src/App.tsx","./src/main.tsx","./src/vite-env.d.ts","./src/components/AnimatedAvatar.tsx","./src/components/BackgroundScene.tsx","./src/components/ChatBubble.tsx","./src/components/Clock.tsx","./src/components/KiraAvatar.tsx","./src/components/Live2DCat.tsx","./src/components/Live2DStage.tsx","./src/components/LoginScreen.tsx","./src/components/MusicPlayer.tsx","./src/components/Notes.tsx","./src/components/Particles.tsx","./src/components/PetZone.tsx","./src/components/TaskList.tsx","./src/components/Timer.tsx","./src/components/Toolbar.tsx","./src/components/Wardrobe.tsx","./src/components/WelcomeScreen.tsx","./src/components/WhiteNoise.tsx","./src/components/scenes.ts","./src/hooks/useConversation.ts","./src/types/index.ts"],"version":"6.0.3"}
+{"root":["./src/App.tsx","./src/main.tsx","./src/vite-env.d.ts","./src/components/AnimatedAvatar.tsx","./src/components/KiraAvatar.tsx","./src/components/Live2DStage.tsx","./src/components/LoginScreen.tsx","./src/components/MusicPlayer.tsx","./src/components/Notes.tsx","./src/components/Particles.tsx","./src/components/TaskList.tsx","./src/components/Timer.tsx","./src/components/Wardrobe.tsx","./src/components/WelcomeScreen.tsx","./src/components/WhiteNoise.tsx","./src/components/scenes.ts","./src/hooks/useConversation.ts"],"version":"6.0.3"}