jedarden
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6cf2d603ca
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feat(pdftract-375xa): implement cache key construction
Implement Phase 6.9.2: cache key construction from (PDF fingerprint,
extraction options) pairs. The key is (fingerprint, opts_hash) where
opts_hash is SHA-256 of canonical JSON serialization.
Key features:
- BTreeMap-based canonicalization for sorted keys
- Float canonicalization (preserves integers, canonicalizes floats)
- extraction_version included for cache invalidation on upgrades
- Forward-compatible with future ExtractionOptions fields
Acceptance criteria:
- Same effective values → same hash
- Toggle receipts off→lite → hash differs
- Different version → hash differs
- Sorted-key canonical JSON
- Float canonical (0.5 == 0.500)
- Documented invariant
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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2026-05-23 04:50:33 -04:00 |
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