Session 2026-05-29: tasks page redesign, projects sidebar, invoicing fix

- Tasks page: tabs (All/To Do/In Progress/In Review/Completed) in header, removed grid view, 70/30 split with projects card
- Projects card: sortable table, dynamic height fills viewport
- Removed Projects page and nav links; redirects → /tasks
- Invoice dedup: prevent double-charge when multiple submissions per revision version
- Dashboard table style applied to tasks table (10px headers, 5px cell padding, transparent cells)
- stat cards: removed "Tasks" header, moved Total Tasks to far right

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/pages/team/CreateInvoice.jsx

@@ -117,7 +117,13 @@ export default function CreateInvoice() {
           return { ...t, service_type: initial?.service_type || t.title };
         });
         setUninvoicedTasks(tasksWithService);
-        setUninvoicedRevisions(revisions || []);
+        // Deduplicate by (task_id, version_number) — multiple submission rows per version (e.g. "Add Files") must not produce multiple invoice charges
+        const revMap = new Map();
+        for (const rev of (revisions || [])) {
+          const key = `${rev.task_id}:${rev.version_number}`;
+          if (!revMap.has(key)) revMap.set(key, rev);
+        }
+        setUninvoicedRevisions([...revMap.values()]);
       } else {
         setUninvoicedTasks([]);
         setUninvoicedRevisions([]);