v0.2.2

What's Changed

🚀 Features

• Web Search Tool: Add web search tool with multi-provider support (Tavily, Bing, DuckDuckGo, SearXNG)
• Web Fetch Tool: Add web fetch tool for page content extraction with LLM-powered summarization

♻️ Refactoring

• Memory System Unification: Unify SessionMemory and UserMemory into a single OKF Memory model
• Memory Tool Renaming: Rename user memory tools to memory (saveUserMemory → saveMemory, etc.) and remove separate session memory concept
• WebFetch/WebSearch Consolidation: Consolidate submodules into main module, extract shared circuit breaker and proxy packages
• WebFetch Extractor: Move LLM extractor to agent layer and add tests
• WebSearch: Inline tool implementation and add thread-safety

⚡ Performance

• Memory Search: Change memory search to word-level OR matching for better recall
• Memory Search SQL: Wrap word conditions in parentheses for correct SQL precedence

🐛 Bug Fixes

• Memory Exporter: Use UTC time for bundle name timestamp for cross-timezone consistency
• Memory Agent: Get user ID directly from session instead of extra DB lookup

📝 Documentation

• Agent Prompts: Clarify script tool purpose and usage