feat: Add GlowTrack mood and habit wellbeing grid specifications

- Introduced export schema for JSON data structure.
- Created renderer contract detailing canvas/SVG rendering requirements.
- Defined IndexedDB storage schema and migration strategies.
- Documented data model including entities and relationships.
- Developed implementation plan outlining execution flow and project structure.
- Provided quickstart guide for development environment setup.
- Compiled research documentation on performance, accessibility, and theming.
- Established feature specification with user scenarios and functional requirements.

specs/001-glowtrack-a-mood/research/06-keyboard-sr-grid.md

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+# Research: Keyboard-first Grid & Screen Reader UX
+
+## Hypothesis
+A roving tabindex grid with appropriate ARIA roles can provide intuitive keyboard navigation and informative SR output.
+
+## Questions
+- Best roles: grid vs listgrid vs table
+- Roving tabindex vs per-cell tab stops
+- SR announcement strings for date, mood, positive/negative counts
+
+## Method
+- Create minimal prototype; test with Axe and at least one SR (NVDA/VoiceOver)
+
+## Acceptance
+- Arrow navigation works; SR reads context and counts
+- Meets WCAG AA navigability and focus visibility
+
+## Deliverables
+- ARIA mapping and strings; nav model; test checklist