polish: extract inline CSS, add connection status, panel macro, favicon, ollama cache, toast system (#164)

Major:
- Extract all inline <style> blocks from 22 Jinja2 templates into
  static/css/mission-control.css — single cacheable stylesheet
- Add tox lint check that fails on inline <style> in templates

Minor:
1. Connection status indicator in topbar (green/amber/red dot) reflecting
   WebSocket + Ollama reachability, with auto-reconnect
2. Jinja2 {% macro panel(title) %} in macros.html — eliminates repeated
   .card.mc-panel markup; index.html converted as example
3. SVG favicon (purple T + orange dot)
4. 30-second TTL cache on _check_ollama() to avoid blocking the event loop
   on every health poll (asyncio.to_thread was already in place)
5. Toast notification system (McToast.show) for transient status messages —
   wired into connection status for Ollama/WebSocket state changes

Enforcement:
- CLAUDE.md updated with conventions 11-14 (no inline CSS, use panel macro,
  use toasts, never block the event loop)
- tox lint + pre-push environments now fail on inline <style> blocks

https://claude.ai/code/session_014FQ785MQdyJQ4BAXrRSo9w

Co-authored-by: Claude <noreply@anthropic.com>

src/dashboard/templates/voice_enhanced.html

@@ -2,110 +2,7 @@
 
 {% block title %}{{ page_title }}{% endblock %}
 
-{% block extra_styles %}
-<style>
-  .voice-enhanced-page {
-    max-width: 600px;
-    margin: 0 auto;
-  }
-
-  .wave-container {
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    gap: 4px;
-    height: 60px;
-    margin: 20px 0;
-  }
-  .wave-bar {
-    width: 4px;
-    background: var(--purple);
-    border-radius: 2px;
-    animation: wave 1s ease-in-out infinite;
-  }
-  .wave-bar:nth-child(1) { animation-delay: 0s; height: 20%; }
-  .wave-bar:nth-child(2) { animation-delay: 0.1s; height: 40%; }
-  .wave-bar:nth-child(3) { animation-delay: 0.2s; height: 60%; }
-  .wave-bar:nth-child(4) { animation-delay: 0.3s; height: 80%; }
-  .wave-bar:nth-child(5) { animation-delay: 0.4s; height: 100%; }
-  .wave-bar:nth-child(6) { animation-delay: 0.3s; height: 80%; }
-  .wave-bar:nth-child(7) { animation-delay: 0.2s; height: 60%; }
-  .wave-bar:nth-child(8) { animation-delay: 0.1s; height: 40%; }
-  .wave-bar:nth-child(9) { animation-delay: 0s; height: 20%; }
-  @keyframes wave {
-    0%, 100% { transform: scaleY(0.5); opacity: 0.5; }
-    50% { transform: scaleY(1); opacity: 1; }
-  }
-  .wave-container:not(.listening) .wave-bar {
-    animation: none;
-    height: 10%;
-    opacity: 0.3;
-  }
-
-  .voice-btn-row {
-    text-align: center;
-    margin-bottom: 16px;
-  }
-  .voice-btn-row button {
-    padding: 12px 32px;
-    font-size: 1rem;
-    font-family: var(--font);
-    font-weight: 700;
-    letter-spacing: 0.08em;
-    min-height: 48px;
-    border-radius: var(--radius-md);
-    cursor: pointer;
-    touch-action: manipulation;
-    transition: transform 0.1s, box-shadow 0.2s;
-  }
-  .voice-btn-row button:active { transform: scale(0.96); }
-  #start-btn {
-    background: var(--border-glow);
-    border: none;
-    color: var(--text-bright);
-  }
-  #stop-btn {
-    background: var(--red);
-    border: none;
-    color: white;
-  }
-
-  #status-text {
-    text-align: center;
-    color: var(--text-dim);
-    margin-bottom: 16px;
-    font-size: 0.85rem;
-    letter-spacing: 0.06em;
-  }
-
-  .result-box {
-    background: rgba(24, 10, 45, 0.8);
-    border: 1px solid var(--border);
-    padding: 14px;
-    border-radius: var(--radius-md);
-    margin-bottom: 10px;
-    font-size: 0.9rem;
-    color: var(--text);
-  }
-  .result-box.timmy-reply {
-    border-left: 3px solid var(--purple);
-  }
-  .result-box strong {
-    color: var(--text-dim);
-    font-size: 0.75rem;
-    letter-spacing: 0.08em;
-    display: block;
-    margin-bottom: 6px;
-  }
-  .result-box.timmy-reply strong { color: var(--purple); }
-
-  #audio-player {
-    width: 100%;
-    margin-top: 10px;
-    border-radius: var(--radius-md);
-  }
-</style>
-{% endblock %}
+{% block extra_styles %}{% endblock %}
 
 {% block content %}
 <div class="voice-enhanced-page py-3">