Release v1.2: store-based shopping, drag-and-drop reorder, versioning, and fixes

[danialkhilji]

Summary

Store-Based Shopping Lists

• Added stores management in Settings (add, edit, delete with colour picker)
• Shopping items can be assigned to a store or left as "Any Store"
• Shopping page groups items by store with section headers and colour dots
• Dashboard shopping card shows per-store unpurchased counts
• Deleting a store unassigns its items (cascade)
• 14 new store tests

Drag-and-Drop Reorder

• Added grip handle (⠿) to tasks and shopping items for touch-friendly reordering
• Backend sort_order column and reorder endpoints for both modules
• 4 new reorder tests

Versioning

• Tagged v1.0 and v1.1 releases
• Version number displayed in Settings page
• Created CHANGELOG.md
• Added MIT license

Fixes & Polish

• Fixed Islamic calendar date disappearing on page refresh
• Fixed current prayer highlight timezone in Docker container
• Purchased items now show with checkmark on dashboard shopping card
• Press animations on bottom navigation icons
• 82 backend tests total

Test plan

• All 82 backend tests passing
• Frontend TypeScript compiles with zero errors
• Frontend production build succeeds
• Store-based shopping grouping works
• Drag-and-drop reorder works on tasks and shopping
• Version v1.1 displayed in Settings