v0.2.2 - Security Hardening & MCP 16 Tools

Security Hardening

• SSRF fail-closed: DNS resolution failures now reject requests instead of allowing
• Session store deadlock fix in cleanup()
• All assert statements replaced with proper runtime checks
• SSRF validation added to scrape/social_scrape MCP tools
• Error messages no longer leak stack traces to clients

MCP System (16 tools, 5 resources, 6 prompts)

• 4 new tools: health_check, cache_stats, list_engines, list_social_platforms
• 3 new resources: social_platforms, plans, plugins
• 4 new prompts: social_research, deep_research, extract_structured, competitor_analysis
• Resource handlers fixed (plans, plugins imports corrected)
• SearchOrchestrator.health_check() added

Tests

• 119/119 tests passing
• New tests for SSRF rejection, all 16 tools, 5 resources, 6 prompts