feat: filter chat conversations by type; add get_weather and get_rss_items LLM tools

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

src/fabledassistant/routes/chat.py

@@ -40,6 +40,7 @@ async def list_conversations_route():
     uid = get_current_user_id()
     limit = min(request.args.get("limit", 50, type=int), 500)
     offset = request.args.get("offset", 0, type=int)
+    conv_type = request.args.get("type", "chat")
     # Apply retention policy before returning list
     retention_str = await get_setting(uid, "chat_retention_days", "90")
     try:
@@ -48,7 +49,7 @@ async def list_conversations_route():
         retention_days = 90
     if retention_days > 0:
         await cleanup_old_conversations(uid, retention_days)
-    conversations, total = await list_conversations(uid, limit=limit, offset=offset)
+    conversations, total = await list_conversations(uid, limit=limit, offset=offset, conv_type=conv_type)
     return jsonify({
         "conversations": conversations,
         "total": total,