Add Zustand persisted draft stores for the create-project and feedback
modals, following the same pattern as the existing issue draft store.
Drafts are saved to localStorage on every field change and restored
when the modal reopens, preventing accidental data loss on close.
Draft is cleared on successful submit.
Add priority field (urgent/high/medium/low/none) to projects, matching
the existing issue priority system. Includes database migration, API
support for create/update/list filtering, and UI for the create dialog,
project list table, and project detail page.
Each project status now displays a unique colored dot indicator in both
the status dropdown trigger and menu items. Previously all statuses
showed the same color, making them indistinguishable.
