P13: promote remaining open GH backlog into TICKETS

[stepango]

Summary

• Promotes last open product GH backlog into P13 on TICKETS.md so 4h workers leave idle/[SILENT] after F-115.
• F-116 ← GH Clean sample on the clean #48 sample domain clean architecture · todo · priority: now · cron may continue
• F-094 / GH Gradle Plugin Portal: Create Forma user for plugin publishing #133 Portal stays blocked (human)
• Hygiene: closed landed GH New navigation system #46 (nav F-102/111/112) and Create hybrid configuration example #43 (hybrid F-103/104) with comments
• Docs-only: TICKETS.md + docs/PROGRESS.md

Not promoted

• v2→master (explicit only)
• Optional NiA case-study §7 residuals (includer publish, Retrofit prod, test graph, Roborazzi/fleet) — separate ask

Test plan

• Board has gated todo (F-116)
• Open GH after hygiene: Clean sample on the clean #48 + Gradle Plugin Portal: Create Forma user for plugin publishing #133 only
• CI green on docs-only PR