feat: complete M0 phase - read-only spine (8/51 tasks)
M0.1 - Cargo workspace + crate skeletons (4 tests)
✅ 6-crate workspace with enforced dependency direction
✅ GitHub Actions CI pipeline
M0.2 - Domain types and sha256 identity (6 tests)
✅ Level, Role, Record, Chunk, MemoryNode types
✅ Content-hash identity (sha256) ensuring rebuild idempotence
✅ Newtypes (ProjectId, QueryId, RunId) without Default
M0.3 - RecordSource trait + ChunkPolicy (6 tests)
✅ RecordSource streaming trait
✅ Chunk policy with token budgets and record boundaries
✅ Chunking stream that respects budgets without splitting records
M0.4 - Tokenizer-backed chunk sizing (3 tests + 1 ignored)
✅ Vendored Qwen2 tokenizer with hash verification
✅ QwenTokenCounter for accurate token counting
✅ mem tokens CLI subcommand
M0.5 - pi session adapter (5 tests)
✅ PiSessionSource implementing RecordSource
✅ Project key extraction from cwd field
✅ Content flattening for various shapes
✅ Shared flatten_content helper module
M0.6 - Claude transcript adapter (4 tests)
✅ ClaudeTranscriptSource implementing RecordSource
✅ Identical content flattening as pi source
✅ Cross-source project key agreement
M0.7 - ingest --dry-run (2 tests)
✅ mem ingest --project --dry-run command
✅ Zero network calls guarantee
M0.8 - M0 composition gate (5 tests)
✅ Both sources compose through chunker identically
✅ Sources are swappable via RecordSource trait
✅ All role types properly emitted
✅ Chunk boundaries respected, t values contiguous
Summary:
- 35 integration tests (34 passing, 1 ignored)
- Zero clippy warnings with -D warnings
- All phases compose and verify correctly
- Read-only spine foundation proves extensibility
Story Crater Bot
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