semi implemented and features implemented save checkpoint

docs/implplan-blocked/audits/csproj-standards/__Libraries/StellaOps.Provcache/StellaOps.Provcache.md

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+# Audit - StellaOps.Provcache
+
+## Project
+- Path: `src/__Libraries/StellaOps.Provcache/StellaOps.Provcache.csproj`
+- Module: `__Libraries`
+- Kind: `Library`
+- SDK: `Microsoft.NET.Sdk`
+- TargetFramework: `net10.0`
+- Audit date (UTC): 2026-01-30
+
+## Coding Standards Findings
+- Status: FAIL
+- Nullable: enable
+- TreatWarningsAsErrors: explicit true
+- Deterministic: inherited true
+- 100-line rule violations: 31
+- Service locator usage (BuildServiceProvider/GetService): 0
+- Analyzer enforcement: missing repo-wide (see summary).
+
+### Details
+- 100-line files:
+  - `src/__Libraries/StellaOps.Provcache/Export/MinimalProofExporter.cs` (504 lines)
+  - `src/__Libraries/StellaOps.Provcache/ProvcacheService.cs` (395 lines)
+  - `src/__Libraries/StellaOps.Provcache/ProvcacheTelemetry.cs` (389 lines)
+  - `src/__Libraries/StellaOps.Provcache/VeriKeyBuilder.cs` (389 lines)
+  - `src/__Libraries/StellaOps.Provcache/Oci/ProvcacheOciAttestationBuilder.cs` (376 lines)
+  - `src/__Libraries/StellaOps.Provcache/IProvcacheService.cs` (363 lines)
+  - `src/__Libraries/StellaOps.Provcache/DecisionDigestBuilder.cs` (343 lines)
+  - `src/__Libraries/StellaOps.Provcache/LazyFetch/HttpChunkFetcher.cs` (336 lines)
+  - `src/__Libraries/StellaOps.Provcache/Chunking/EvidenceChunker.cs` (324 lines)
+  - `src/__Libraries/StellaOps.Provcache/Oci/ProvcachePredicateTypes.cs` (312 lines)
+  - `src/__Libraries/StellaOps.Provcache/LazyFetch/LazyFetchOrchestrator.cs` (301 lines)
+  - `src/__Libraries/StellaOps.Provcache/Revocation/RevocationReplayService.cs` (295 lines)
+  - `src/__Libraries/StellaOps.Provcache/WriteBehindQueue.cs` (271 lines)
+  - `src/__Libraries/StellaOps.Provcache/Export/MinimalProofBundle.cs` (263 lines)
+  - `src/__Libraries/StellaOps.Provcache/LazyFetch/FileChunkFetcher.cs` (257 lines)
+  - `src/__Libraries/StellaOps.Provcache/Models/InputManifest.cs` (245 lines)
+  - `src/__Libraries/StellaOps.Provcache/Entities/ProvcacheItemEntity.cs` (217 lines)
+  - `src/__Libraries/StellaOps.Provcache/IEvidenceChunkRepository.cs` (203 lines)
+  - `src/__Libraries/StellaOps.Provcache/Invalidation/FeedEpochInvalidator.cs` (184 lines)
+  - `src/__Libraries/StellaOps.Provcache/Invalidation/SignerSetInvalidator.cs` (177 lines)
+  - `src/__Libraries/StellaOps.Provcache/Models/DecisionDigest.cs` (172 lines)
+  - `src/__Libraries/StellaOps.Provcache/Revocation/IRevocationLedger.cs` (160 lines)
+  - `src/__Libraries/StellaOps.Provcache/IProvcacheStore.cs` (150 lines)
+  - `src/__Libraries/StellaOps.Provcache/ProvcacheOptions.cs` (150 lines)
+  - `src/__Libraries/StellaOps.Provcache/Revocation/InMemoryRevocationLedger.cs` (137 lines)
+  - `src/__Libraries/StellaOps.Provcache/IProvcacheRepository.cs` (137 lines)
+  - `src/__Libraries/StellaOps.Provcache/Events/FeedEpochAdvancedEvent.cs` (131 lines)
+  - `src/__Libraries/StellaOps.Provcache/LazyFetch/ILazyEvidenceFetcher.cs` (131 lines)
+  - `src/__Libraries/StellaOps.Provcache/Events/SignerRevokedEvent.cs` (116 lines)
+  - `src/__Libraries/StellaOps.Provcache/ProvcacheServiceCollectionExtensions.cs` (114 lines)
+  - `src/__Libraries/StellaOps.Provcache/Entities/ProvRevocationEntity.cs` (110 lines)
+- Service locator matches:
+  - none
+
+### Fix Guidance
+- Split files over 100 lines into smaller types or partials.
+
+## Testing Fullness Findings
+- Status: PASS
+- Expected layers: Unit
+- Detected test projects: src/__Libraries/__Tests/StellaOps.Provcache.Tests/StellaOps.Provcache.Tests.csproj [Unit]
+- Missing layers: none
+
+### Manual checks required
+- Observability contract tests for WebService/Worker.
+- Offline execution (tests must run without network access).
+
+### Fix Guidance
+- None.