feat: FileStore, Store interface, config file, and content hashing#1
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feat: FileStore, Store interface, config file, and content hashing#1
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…t hashing - Extract Store interface in types.ts for both in-memory and persistent stores - Add FileStore (file-backed store with atomic writes via temp+rename) - Add .granules.json config file support with CLI flag overrides - Add contentHash (SHA-256) field to Granule type, computed on creation - Add updateGranuleContent method to Store interface - Update Orchestrator and server to accept Store interface - Add comprehensive tests for FileStore and contentHash
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Changes
1. Store Interface
Extracted a
Storeinterface intypes.tsthat bothGranuleStore(in-memory) andFileStoreimplement. UpdatedOrchestratorandserver.tsto acceptStoreinstead of concreteGranuleStore.2. FileStore (persistent backend)
New
src/file-store.ts— drop-in replacement that persists to a JSON file on every mutation. Uses atomic writes (temp file + rename) to avoid corruption. Loads existing state on construction. Default path:.granules-state.json.3. Config file support
.granules.jsonin cwd is loaded automatically. Supportsstore,stateFile,port,maxWorkers. CLI flags (--store,--state-file,--port,--max-workers) override config. No config = same behavior as before.4. Spec SHA watermarking
Added
contentHash(SHA-256) field toGranuletype, computed on creation. AddedupdateGranuleContentmethod to update content and recompute hash.5. Tests
Comprehensive tests for FileStore: persistence, reload, atomic writes, contentHash computation. All 90 tests pass.