docs: record data-layer D1 contracts progress - #42
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Record Data Layer D1 in CLAUDE.md progress: - D1 (PR #41) merged into main: behavior-preserving cleanup. - Scope: docs/data/data_layer_contracts.md (cache vs store boundary) and token parsing dedup onto data/feed/secret.py::read_token (_lookup_dotted removed repo-wide; all six tushare feeds share the reader). - Behavior-preserving: phase0 ic 0.9600 / annual 0.8408 unchanged; no data-fetch / cache semantics / factor / alpha / portfolio / runtime / report changes. - D1 non-goals (deferred to D2+): TushareCache split, endpoint schema registry, data-quality validator, concurrency, CoverageLedger storage change, PanelStore append/partition. - D2 (TushareCache modularization) is the next planned phase, NOT implemented. - Update PR list (+#41), gate counts (577 -> 579, +D1 index-feed tests=2), and next-step roadmap (D1 done -> D2 next). Docs-only; no code behavior change.
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What changed
Docs-only progress update in
CLAUDE.mdrecording Data Layer D1 (PR #41, merged):cachevsstorecontract doc (docs/data/data_layer_contracts.md) and dedup of the duplicated Tushare token parsing ontodata/feed/secret.py::read_token(the private_lookup_dottedis now removed repo-wide; all six tushare-backed feeds share the reader).ic 0.9600 / annual 0.8408unchanged; no data-fetch / cache semantics / factor / alpha / portfolio / runtime / report-metric changes.TushareCachemodularization) is the next planned engineering phase — not implemented here.Also updated: merged-PR list (+#41), quality-gate counts (577 → 579, +D1 index-feed tests=2), and the next-step roadmap (D1 done → D2 next).
Verification
git diff --name-only main...HEAD→CLAUDE.mdonly (docs-only, no code change).git diff --check main...HEAD→ clean..config.jsontoken value 0 hits; noFAKE_TUSHARE_TOKEN.Docs-only, no code behavior change.