Adds Gitea issue templates to prevent missed integration points:
- feature.yaml: Includes Integration Criteria section for navigation,
routing, and state management requirements
- bug.yaml: Structured bug reporting with platform selection
- chore.yaml: Technical debt and maintenance tasks
The Integration Criteria section ensures features specify:
- Desktop sidebar / mobile nav placement
- Route paths and default landing page
- Mobile screen type in navigation store
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
