feat: Enhance audio capture and monitoring features

- Added "audioCapture" permission to manifest for microphone access.
- Introduced DeepSeek as a new AI provider option in the side panel.
- Implemented a capture mode selection (tab-only, mic-only, mixed) in the side panel.
- Added options to enable/disable the extension and auto-open the assistant window.
- Integrated a mic monitor feature with live input level visualization.
- Included buttons for requesting microphone permission and granting tab access.
- Updated styles for new sections and mic level visualization.
- Enhanced model fetching logic to support DeepSeek and improved error handling.

manifest.json

@@ -5,6 +5,7 @@
     "description": "Monitors audio and answers questions in real-time using AI",
     "permissions": [
       "tabCapture",
+      "audioCapture",
       "storage",
       "activeTab",
       "scripting",
@@ -16,6 +17,7 @@
       "https://api.openai.com/*",
       "https://api.anthropic.com/*",
       "https://generativelanguage.googleapis.com/*",
+      "https://api.deepseek.com/*",
       "http://localhost:11434/*"
     ],
     "background": {
@@ -36,4 +38,4 @@
       "48": "icon48.png",
       "128": "icon128.png"
     }
-}
+}