Add development plan with 13 milestone specifications
- docs/plan.md: Master roadmap with phases and priorities
- docs/milestones/01-13: Detailed specs for each feature
- Updated CLAUDE.md with plan references and build commands
Milestones cover:
- Phase 1: Temporal versioning, auto-capture, context injection, codebase indexing
- Phase 2: Daily journal, content ingestion, graph visualization, import/export
- Phase 3: Multi-graph, smart retrieval, TUI dashboard, browser extension, shell completions
omigamedev
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