Remove the db/connectors → tooling/db/ symlink added in Sprint 21
(#274) and migrate all references to use tooling/db/ directly.
- Delete tracked symlink from db/connectors
- Remove duplicate db/connectors/* permission patterns from settings
- Update project-structure.md to reflect removal
- Move whatsinagame/static/db/connectors/ to whatsinagame/static/tooling/db/
- Update 20 whatsinagame template, skill, and test files
- Update comment references in client/tests/test_anti_tedium.gd
- Historical docs (old sprint briefings, changelog, discussions) left as-is
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>