5d3e29669b
Closes brain-retro 2026-05-20 #13 PIVOT — additive to F1 (parallel session sessions session). F1 narrowed parallel_session to tool_result-only to fix live FP. This Task adds OR-clause: Bash command containing 'git fetch && git log HEAD..origin/...' (Pravila §15.2 pre-flight) is a strong signal that the operator expects parallel sessions. Does NOT overwrite F1 — both signals coexist via OR. 4 new vitest tests, 319/319 GREEN. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>