feat(report): accomplishment report dialog + entry points

Add AccomplishmentReportDialog with programmer/admin modes, date-range
filter (default this month), and include-unapproved toggle. Wire into
DaySheetsTab app-bar action, ApprovalsTab app-bar action, and
ProgrammerDrillDownScreen app-bar button.

Co-Authored-By: claude-flow <ruv@ruv.net>

lib/screens/programmer_tasks/day_sheets/day_sheets_tab.dart

@@ -13,6 +13,7 @@ import '../../../utils/programmer_task_ledger.dart';
 import '../../../widgets/app_state_view.dart';
 import '../../../widgets/app_status_summary.dart';
 import '../../../widgets/status_pill.dart';
+import '../report/accomplishment_report_dialog.dart';
 
 /// Programmer-facing tab for managing personal day sheets.
 ///
@@ -140,6 +141,16 @@ class _DaySheetsTabState extends ConsumerState<DaySheetsTab> {
     return ListView(
       padding: const EdgeInsets.all(16),
       children: [
+        // ── Report action ──────────────────────────────────────────────────
+        Align(
+          alignment: Alignment.centerRight,
+          child: IconButton(
+            icon: const Icon(Icons.description_outlined),
+            tooltip: 'Accomplishment Report',
+            onPressed: () => showAccomplishmentReportDialog(context, ref),
+          ),
+        ),
+
         // ── Today card ─────────────────────────────────────────────────────
         _TodayCard(
           total: todayTotal,