feat: complete voice pipeline — fix wake word crash, bridge timeout, HA conversation agent

- Fix Wyoming satellite crash on wake word: convert macOS .aiff chimes to .wav
  (Python wave module only reads RIFF format, not AIFF)
- Fix OpenClaw HTTP bridge: increase subprocess timeout 30s → 120s, add SO_REUSEADDR
- Fix HA conversation component: use HTTP agent (not CLI) since HA runs in Docker
  on a different machine; update default host to Mac Mini IP, timeout to 120s
- Rewrite character manager as Vite+React app with schema validation
- Add Wyoming satellite wake word command, ElevenLabs TTS server, wakeword monitor
- Add Phase 5 development plan
- Update TODO.md: mark voice pipeline and agent tasks complete

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

homeai-agent/skills/home-assistant/openclaw_bridge.py

@@ -18,8 +18,26 @@ import sys
 from pathlib import Path
 
 
+def load_character_prompt() -> str:
+    """Load the active character system prompt."""
+    character_path = Path.home() / ".openclaw" / "characters" / "aria.json"
+    if not character_path.exists():
+        return ""
+    try:
+        with open(character_path) as f:
+            data = json.load(f)
+            return data.get("system_prompt", "")
+    except Exception:
+        return ""
+
+
 def call_openclaw(message: str, agent: str = "main", timeout: int = 30) -> str:
     """Call OpenClaw CLI and return the response."""
+    # Inject system prompt
+    system_prompt = load_character_prompt()
+    if system_prompt:
+        message = f"System Context: {system_prompt}\n\nUser Request: {message}"
+
     try:
         result = subprocess.run(
             ["openclaw", "agent", "--message", message, "--agent", agent],