v0.9.0 — Ops autopilot + three-gate production line

Making videos is half the job. v0.9 covers the other half: running the channel without relying on memory.

New

• src/channel_tracker.py — per-video D2/D7/D28 snapshot scheduling + pending-action tracking; one command prints what's due today
• src/system_health.py — one-command health check (every module self-test + core files, single GREEN/RED)
• src/longform_maker/plan_gate.py — packaging-first gate: no 8 title×thumbnail pairs = don't start writing
• src/longform_maker/script_gate.py — pre-recording gate v2: cold-open rules + audience-language vocab tiers (fill-in-your-own) + retention-rhythm checks
• knowledge/viral-playbook-framework.md — define "viral" with your own data; six-station hit-rate system; adversarial-verification methodology (CONFIRMED/PLAUSIBLE/REFUTED grading)
• knowledge/ops-automation.md — wiring guide incl. daily scheduled AI patrol template with hard safety rules

Fixed

• cp950 console crash in invariants self-test; re-hook positions unified to 25/50/75 across docs

Zero private data, as always — all vocab tables and thresholds are examples you replace with your own. See CHANGELOG for details.