feat: v0.1.0 - geolocation capture, calendar, search, Starlight docs site

- Automatic browser geolocation capture on event creation
- Reverse geocoding via Nominatim API for place names
- Full-text search with SQLite FTS5
- Calendar view for browsing past entries
- DateNavigator component for day navigation
- SearchModal with Ctrl+K shortcut
- QuickAddWidget with Ctrl+J shortcut
- Starlight documentation site with GitHub Pages deployment
- Multiple AI provider support (Groq, OpenAI, Anthropic, Ollama, LM Studio)
- Multi-user registration support

BREAKING: Events now include latitude/longitude/placeName fields

docs/src/assets/logo-light.svg

@@ -0,0 +1,15 @@
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+      <stop offset="100%" style="stop-color:#6366f1;stop-opacity:1" />
+    </linearGradient>
+  </defs>
+  <rect width="100" height="100" rx="20" fill="url(#grad)"/>
+  <path d="M25 25 L75 25 L75 80 L25 80 Z" fill="none" stroke="white" stroke-width="3" stroke-linecap="round"/>
+  <path d="M35 40 L65 40" stroke="white" stroke-width="2" stroke-linecap="round"/>
+  <path d="M35 50 L65 50" stroke="white" stroke-width="2" stroke-linecap="round"/>
+  <path d="M35 60 L55 60" stroke="white" stroke-width="2" stroke-linecap="round"/>
+  <circle cx="70" cy="60" r="8" fill="white" opacity="0.3"/>
+  <path d="M70 55 L70 65 M65 60 L75 60" stroke="white" stroke-width="2" stroke-linecap="round"/>
+</svg>