v2.9.0b1

This release introduces support for the Langsearch web search provider and updates the underlying Pydantic AI agent initialization to align with the latest pydantic-ai capabilities API. Default AI models have also been updated to the latest Gemini Flash versions.

New Features:

• Langsearch Integration: Added support for langsearch as a web search provider for lyrics and scene detection. This can be configured via the web_search_tool setting and requires a LANGSEARCH_API_KEY.
• Pydantic AI Capabilities Update: Updated agent initialization to use the new capabilities API for pydantic-ai, replacing the deprecated builtin_tools argument. This ensures compatibility with newer versions of pydantic-ai and aligns with recommended practices for agent configuration.
• Updated Default AI Models: The default models for model_subtitles and model_lyrics have been updated to gemini-3.5-flash and gemini-3.1-flash-lite respectively.

Fixes & Improvements:

• Unified Web Search Architecture: Refactored the web search infrastructure to support multiple providers (Ollama, Langsearch) using a unified configuration (WebSearchSettings) and dependency model (WebSearchDeps). This centralizes HTTP client management, in-memory caching, and rate limiting.

What's Changed

• Langsearch by @FlippFuzz in #8

Full Changelog: v2.8.2...v2.9.0b1