Fixes the regressions from the entry/compiler renames (2b3c2a7, d318911)
that Astra reproduced at d318911:
- run_refined_dfg.verify_source: a manifest file missing from the checkout
is a 'Source mismatch' (was FileNotFoundError); the current-checkout
(Jet scenario) capture hashes the manifest's harness files plus the
checkout's own 'git ls-files src', not historical src paths.
- time_window_dfg: candidate file list names kernels/blocked.cu.
- test_projected_pairs: the a135252-only harness's runtime_source is the
historical receipt value (historical_runtime_source) in the receipt
fixture and the two mocked run_case.main tests; runtime_source itself
stays tested against the a135252 package (historical_package).
Harness files, pins, manifests and thresholds are unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>