BREAKING CHANGE: Timeline MCP tools now use standardized parameter names
- anchor_id → anchor
- before → depth_before
- after → depth_after
- obs_type → type (timeline tool only)
Fixes timeline endpoint failures caused by parameter name mismatch between
MCP layer and SearchManager. Adds new SessionStore methods for fetching
prompts and session summaries by ID.
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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Alex Newman