turbo

53b2cb03 - perf: resolve stat-mismatched files during index build to reduce hash_scope

perf: resolve stat-mismatched files during index build to reduce hash_scope When the git index stats don't match the filesystem (common in CI, containers, and fresh checkouts), all tracked files were classified as "modified" and deferred to per-package hashing during hash_scope. This caused thousands of unnecessary SHA1 file hashes on the critical path. Fix: content-hash stat-mismatched files during the parallel index build (which overlaps with package graph construction) instead of deferring to hash_scope. If the computed hash matches the index entry, classify the file as clean. This moves I/O from the critical path to a background thread. Also resolve racy-git entries (mtime >= index timestamp) the same way instead of conservatively marking them as modified. Measured on this repo (~30 packages, clean working tree): - hash_scope: 370ms → 93ms (-75%) - scm_task_await: 400ms → 159ms (-60%) - Total TTFT: 1690ms → 1010ms (-40%) Add tracing spans to task hashing pipeline for ongoing perf monitoring. https://claude.ai/code/session_01HXQRNfNhJQu26zPuR1VppH