feat: unified HomeAI dashboard — merge character + desktop into single app

Combines homeai-character (service status, character profiles, editor) and
homeai-desktop (chat with voice I/O) into homeai-dashboard on port 5173.

- 4-page sidebar layout: Dashboard, Chat, Characters, Editor
- Merged Vite middleware: health checks, service restart, bridge proxy
- Bridge upgraded to ThreadingHTTPServer (fixes LAN request queuing)
- TTS strips emojis before synthesis
- Updated start.sh with new launchd service names
- Added preload-models to startup sequence

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

homeai-agent/openclaw-http-bridge.py

@@ -28,10 +28,12 @@ import subprocess
 import sys
 import asyncio
 from http.server import HTTPServer, BaseHTTPRequestHandler
+from socketserver import ThreadingMixIn
 from urllib.parse import urlparse
 from pathlib import Path
 import wave
 import io
+import re
 from wyoming.client import AsyncTcpClient
 from wyoming.tts import Synthesize, SynthesizeVoice
 from wyoming.asr import Transcribe, Transcript
@@ -107,6 +109,13 @@ class OpenClawBridgeHandler(BaseHTTPRequestHandler):
             return
             
         text = data.get("text", "Hello, this is a test.")
+        # Strip emojis so TTS doesn't try to read them out
+        text = re.sub(
+            r'[\U0001F600-\U0001F64F\U0001F300-\U0001F5FF\U0001F680-\U0001F6FF'
+            r'\U0001F1E0-\U0001F1FF\U0001F900-\U0001F9FF\U0001FA00-\U0001FAFF'
+            r'\U00002702-\U000027B0\U0000FE00-\U0000FE0F\U0000200D'
+            r'\U00002600-\U000026FF\U00002300-\U000023FF]+', '', text
+        ).strip()
         voice = data.get("voice", "af_heart")
         
         try:
@@ -316,6 +325,10 @@ class OpenClawBridgeHandler(BaseHTTPRequestHandler):
             self._send_json_response(404, {"error": "Not found"})
 
 
+class ThreadingHTTPServer(ThreadingMixIn, HTTPServer):
+    daemon_threads = True
+
+
 def main():
     """Run the HTTP bridge server."""
     parser = argparse.ArgumentParser(description="OpenClaw HTTP Bridge")
@@ -332,8 +345,8 @@ def main():
     )
     args = parser.parse_args()
 
-    HTTPServer.allow_reuse_address = True
-    server = HTTPServer((args.host, args.port), OpenClawBridgeHandler)
+    ThreadingHTTPServer.allow_reuse_address = True
+    server = ThreadingHTTPServer((args.host, args.port), OpenClawBridgeHandler)
     print(f"OpenClaw HTTP Bridge running on http://{args.host}:{args.port}")
     print(f"Endpoint: POST http://{args.host}:{args.port}/api/agent/message")
     print("Press Ctrl+C to stop")