Add Programmer Tasks module (work-log + time tracking)

Separate feature for the `programmer` role to record dev work by category,
distinct from the IT help-desk `tasks` feature. Modeled on the IT Service
Requests pattern (Brick offline-first model -> Riverpod stream/controller ->
list/detail screens); seed of a future Project Management workflow.

- programmer_tasks + programmer_task_activity_logs (category enum, RLS,
  realtime) via supabase migration
- single assignee, self-logged or lead-assigned; assign/reassign logged
- pause-on-switch: starting a task while another runs prompts to pause the
  running one, keeping one active task per user for accurate time attribution
- worked-duration math shared with help-desk tasks via a generic core in
  task_duration.dart (existing callers unchanged)
- list distinguishes running vs paused with a per-task Resume shortcut
- accessible dialog labels; route /programmer-tasks + nav gated to admin/programmer
- unit/widget tests: controller lifecycle, duration math, pause-switch dialog

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

lib/brick/brick.g.dart

@@ -35,6 +35,8 @@ import '../models/notification_item.model.dart';
 import '../models/office.model.dart';
 import '../models/pass_slip.model.dart';
 import '../models/profile.model.dart';
+import '../models/programmer_task.model.dart';
+import '../models/programmer_task_activity_log.model.dart';
 import '../models/service.model.dart';
 import '../models/swap_request.model.dart';
 import '../models/task.model.dart';
@@ -56,6 +58,8 @@ part 'adapters/notification_item_adapter.g.dart';
 part 'adapters/office_adapter.g.dart';
 part 'adapters/pass_slip_adapter.g.dart';
 part 'adapters/profile_adapter.g.dart';
+part 'adapters/programmer_task_adapter.g.dart';
+part 'adapters/programmer_task_activity_log_adapter.g.dart';
 part 'adapters/service_adapter.g.dart';
 part 'adapters/swap_request_adapter.g.dart';
 part 'adapters/task_adapter.g.dart';
@@ -79,6 +83,8 @@ final Map<Type, SupabaseAdapter<SupabaseModel>> supabaseMappings = {
   Office: OfficeAdapter(),
   PassSlip: PassSlipAdapter(),
   Profile: ProfileAdapter(),
+  ProgrammerTask: ProgrammerTaskAdapter(),
+  ProgrammerTaskActivityLog: ProgrammerTaskActivityLogAdapter(),
   Service: ServiceAdapter(),
   SwapRequest: SwapRequestAdapter(),
   Task: TaskAdapter(),
@@ -104,6 +110,8 @@ final Map<Type, SqliteAdapter<SqliteModel>> sqliteMappings = {
   Office: OfficeAdapter(),
   PassSlip: PassSlipAdapter(),
   Profile: ProfileAdapter(),
+  ProgrammerTask: ProgrammerTaskAdapter(),
+  ProgrammerTaskActivityLog: ProgrammerTaskActivityLogAdapter(),
   Service: ServiceAdapter(),
   SwapRequest: SwapRequestAdapter(),
   Task: TaskAdapter(),