[2.6.0] Remove feedback-codifier agent, update docs theme and style
- Remove feedback-codifier agent from workflow agents (24 → 23 agents)
- Update all component counts across plugin.json, README, and docs site
- Update docs CSS theme (hue: 243, saturation: 1, contrast: 0.71)
- Apply Every style guide fixes (number formatting: "2" → "two", etc.)
- Add v2.6.0 changelog entry to docs site
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Co-Authored-By: Claude <noreply@anthropic.com>