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Oleksandr Bezdieniezhnykh
f7b2e70085
Implements the public top-level F1 build orchestrator for E-C10 per contract v1.1.0. Composes EngineCompiler (AZ-321), DescriptorBatcher (AZ-322), and ManifestBuilder (AZ-323) into a single idempotent operation guarded by a fcntl-backed cache_root/.c10.lock and a post-build coverage walk. Adds: - CacheProvisionerImpl + FilelockFileLockFactory (provisioner.py) - BuildRequest/BuildReport/BuildOutcome/SectorClassification DTOs + FileLockFactory Protocol + replaced placeholder CacheProvisioner Protocol with v1.1.0 surface (interface.py) - C10ProvisionerConfig wired into C10ProvisioningConfig (config.py) - BuildLockHeldError + ManifestCoverageError (errors.py) - build_cache_provisioner composition root (c10_factory.py) - 18 tests covering AC-1..AC-16 + NFR-perf-coverage-walk - filelock>=3.13,<4.0 (single new third-party dep) Idempotence (CP-INV-1) reuses AZ-323's _compute_manifest_hash / _aggregate_tile_hash so the build-identity decision agrees byte-for- byte with the Manifest's recorded manifest_hash. Coverage rollback uses a .prev rename snapshot. Diagnostic compile_engines_for_corpus is lock-free per AC-10. Co-authored-by: Cursor <cursoragent@cursor.com>