ad2a5fc5fe
Backend for the system-tag behavior refactor (milestone #157). editor screenshot moves from chrome (hidden) to the PROCESS group (shown, like wip); wip+editor gain provisional auto-apply so they stop needing endless manual identification — without a runaway loop. - tag.py: split PRESENTATION_SYSTEM_TAGS → CHROME_SYSTEM_TAGS (banner) + PROCESS_SYSTEM_TAGS (wip, editor screenshot). - heads.py: generalize presentation_auto_apply_sweep → system_tag_auto_apply_sweep (mode chrome|process). Same Guard 1 (skip human/confirmed) + Guard 2 (ring-loud conflict → PresentationReview). process mode uses source 'process_auto' and does NOT hide (hide is a gallery-query effect of group membership). - training_data._AUTO_SOURCES += 'process_auto' → the head never trains on its own auto-applied output; only wip_title/manual train it (the runaway break). - ml_settings: process_auto_apply_enabled (OFF, opt-in) + threshold + conflict threshold. presentation_review.mode ('chrome'|'process'). Migration 0086. - gallery_service: default-hide reads CHROME only (editor now shows); Explore neighbors exclude the whole PROCESS group. - tasks/ml + celery beat: scheduled_process_auto_apply (daily, opt-in); prune covers both modes. - api: ml_admin process_* CRUD+validation; hidden-review returns mode. - tests: rename chrome sweep calls; new test_process_auto_apply (apply, guards, mode flag, no-self-train); gallery test asserts editor now visible. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>