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/quickstart.md

@@ -0,0 +1,35 @@
+# Quickstart — GlowTrack
+
+## Prerequisites
+- Nix installed (flakes enabled)
+
+## Dev Environment
+- Enter dev shell:
+  - nix develop
+- Install JS deps (first time):
+  - pnpm install
+- Run typecheck and lints:
+  - pnpm run svelte-check
+  - pnpm run lint
+
+## Run App (dev)
+- Start web app:
+  - pnpm run dev
+- Open in browser (URL printed by dev server)
+
+## Build (static site)
+- Build via Nix flake:
+  - nix build .#app
+- Or via pnpm:
+  - pnpm run build
+
+## Tests
+- Unit tests:
+  - pnpm run test
+- E2E smoke (headed/CI):
+  - pnpm run test:e2e
+
+## Export/Import
+- Export JSON (in-app): Settings → Export → JSON
+- Import JSON: Settings → Import → select file
+- Export PNG: Share/Export → PNG (screen resolution)