feat: task tags, sort controls, and tag filtering

- Added tags (JSONB array) to tasks schema with full CRUD support
- Tag editor in TaskDetailPanel with chip UI, Enter/comma to add, Backspace to remove
- Tag badges on TaskCard, KanbanBoard cards, and DashboardPage
- Sort controls on QueuePage: sort by priority, due date, created, updated, name
- Sort direction toggle (asc/desc) with persistence to localStorage
- Tag filter dropdown in QueuePage header (populated from existing tags)
- Search now matches tags
- Backend: tags in create/update, progressNotes in PATCH body

backend/src/routes/tasks.ts

@@ -154,6 +154,7 @@ export const taskRoutes = new Elysia({ prefix: "/api/tasks" })
           taskNumber: nextNumber,
           projectId: body.projectId || null,
           dueDate: body.dueDate ? new Date(body.dueDate) : null,
+          tags: body.tags || [],
           subtasks: [],
           progressNotes: [],
         })
@@ -193,6 +194,7 @@ export const taskRoutes = new Elysia({ prefix: "/api/tasks" })
         ),
         projectId: t.Optional(t.Union([t.String(), t.Null()])),
         dueDate: t.Optional(t.Union([t.String(), t.Null()])),
+        tags: t.Optional(t.Array(t.String())),
       }),
     }
   )
@@ -240,7 +242,9 @@ export const taskRoutes = new Elysia({ prefix: "/api/tasks" })
       if (body.assigneeName !== undefined) updates.assigneeName = body.assigneeName;
       if (body.projectId !== undefined) updates.projectId = body.projectId;
       if (body.dueDate !== undefined) updates.dueDate = body.dueDate ? new Date(body.dueDate) : null;
+      if (body.tags !== undefined) updates.tags = body.tags;
       if (body.subtasks !== undefined) updates.subtasks = body.subtasks;
+      if (body.progressNotes !== undefined) updates.progressNotes = body.progressNotes;
 
       const updated = await db
         .update(tasks)
@@ -269,6 +273,7 @@ export const taskRoutes = new Elysia({ prefix: "/api/tasks" })
         assigneeName: t.Optional(t.Union([t.String(), t.Null()])),
         projectId: t.Optional(t.Union([t.String(), t.Null()])),
         dueDate: t.Optional(t.Union([t.String(), t.Null()])),
+        tags: t.Optional(t.Array(t.String())),
         subtasks: t.Optional(t.Array(t.Object({
           id: t.String(),
           title: t.String(),
@@ -276,6 +281,10 @@ export const taskRoutes = new Elysia({ prefix: "/api/tasks" })
           completedAt: t.Optional(t.String()),
           createdAt: t.String(),
         }))),
+        progressNotes: t.Optional(t.Array(t.Object({
+          timestamp: t.String(),
+          note: t.String(),
+        }))),
       }),
     }
   )