feat(chat): enhance chat functionality with web search and article integration

- Updated ChatMessage and ChatWindow components to support inline web search results and articles.
- Integrated new web search and RSS plugins into the chat system for real-time information retrieval.
- Enhanced useContentPanel to manage web search results alongside existing media types.
- Added ArticleOverlay component for displaying selected articles from search results.
- Improved UI elements and styles for better user interaction with web search features.

Made-with: Cursor

.env.example

@@ -5,11 +5,14 @@
 # Get your key at: https://openrouter.ai/keys
 VITE_OPENROUTER_API_KEY=sk-or-your-key-here
 
-# Anthropic Claude — use ONE of these:
-# Option 1: OAuth token from Claude Code CLI (run: claude auth login)
-VITE_ANTHROPIC_TOKEN=sk-ant-oat01-your-token-here
-# Option 2: API key from console (https://console.anthropic.com/settings/keys)
-VITE_ANTHROPIC_API_KEY=sk-ant-your-key-here
+# Anthropic Claude — for live web search (Claude invokes search mid-response):
+# Option 1: OAuth token from Max subscription (run: claude setup-token, save output)
+#   → No extra cost; uses your existing Max subscription.
+ANTHROPIC_TOKEN=sk-ant-oat01-your-token-here
+# Option 2: API key from https://console.anthropic.com/settings/keys
+ANTHROPIC_API_KEY=sk-ant-your-key-here
+#
+# Without either: proxy uses CLI with built-in WebSearch + pre-fetched context.
 
 # TMDB API (free, fetches posters on-demand when images fail)
 # Get your key at: https://www.themoviedb.org/settings/api
@@ -19,6 +22,11 @@ TMDB_API_KEY=your-tmdb-key-here
 # Get your client_id at: https://devportal.jamendo.com/
 JAMENDO_CLIENT_ID=your-jamendo-client-id
 
+# SearXNG instance for web search (optional)
+# Uses public instances by default; falls back to DuckDuckGo when they fail.
+# For reliable dev: host your own (https://docs.searxng.org/) or rely on DDG fallback.
+# SEARXNG_URL=https://your-searxng.instance
+
 # Development flags
 VITE_DEV_MODE=true
 VITE_MOCK_MEDIA_SOURCES=true