MechaCat02 3a9e7ca2da fix(analysis): hold the OCR permit for the full blocking inference ...

The OCR dispatcher acquired a borrowed semaphore permit, then ran the
CPU-bound inference in `spawn_blocking`. On cancellation (graceful
shutdown) the future dropped the permit while the detached blocking task
kept running, briefly oversubscribing the blocking pool past
ANALYSIS_WORKERS.

Extract `run_ocr_blocking`, which acquires an *owned* permit and moves it
into the blocking task so the concurrency slot's lifetime matches the
actual work. Covered by a cancellation-invariant test asserting the
permit stays held after the caller future is aborted.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-07-03 21:08:50 +02:00

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