Add PM extension (Projects, Work Logs, Comments) + Quill rich-text UI

Projects: Brick-backed model with list/detail screens and nav entry.
Work Logs: per-contributor time ledger, assignee running-clock +
helper logged minutes with Hours/Minutes input; pause-after-save and
helper-deduct prompts.
Comments: threaded comments with file attachments and Quill composer.
Detail screen: tabbed layout (Work Log / Comments / Activity),
editable title + description via edit dialog, Quill-rendered
descriptions with legacy plain-text fallback.
Create dialog: fixed-width (480px max), Quill description editor.
Shared QuillFieldEditor + QuillReadOnly widgets extracted for reuse.
RLS: hardened activity-log actor binding, immutable creator_id/
created_at triggers, SECURITY INVOKER visibility helper,
append-only work-log and scoped comment policies.
Brick migration for project_id FK on programmer_tasks.

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

lib/providers/programmer_tasks_provider.dart

@@ -347,6 +347,7 @@ class ProgrammerTasksController {
     required String category,
     String? description,
     String? assigneeId,
+    String? projectId,
     int priority = 1,
   }) async {
     final userId = _client.auth.currentUser?.id;
@@ -363,6 +364,7 @@ class ProgrammerTasksController {
       'priority': priority,
       'assignee_id': assignee,
       'creator_id': userId,
+      'project_id': ?projectId,
     };
 
     try {
@@ -384,6 +386,7 @@ class ProgrammerTasksController {
         priority: priority,
         assigneeId: assignee,
         creatorId: userId,
+        projectId: projectId,
         createdAt: now,
         updatedAt: now,
       );
@@ -481,6 +484,33 @@ class ProgrammerTasksController {
     await _insertLog(taskId, 'updated', meta: {'fields': updates.keys.toList()});
   }
 
+  /// Assigns the task to a project (pass null to clear it).
+  Future<void> setProject({
+    required String taskId,
+    required String? projectId,
+  }) async {
+    await _updateTaskRow(taskId, {'project_id': projectId});
+    await _insertLog(taskId, 'updated', meta: {
+      'fields': ['project_id'],
+    });
+  }
+
+  /// Records a time adjustment (negative [seconds]) against a task's worked
+  /// duration — e.g. when the current user helped on another task and chose to
+  /// deduct that time from their own running task.
+  Future<void> addAdjustment({
+    required String taskId,
+    required int seconds,
+    String? reason,
+    String? sourceTaskId,
+  }) async {
+    await _insertLog(taskId, 'adjustment', meta: {
+      'seconds': seconds,
+      'reason': ?reason,
+      'source_task_id': ?sourceTaskId,
+    });
+  }
+
   /// Applies a field patch to a task row. When [onlyIfStartNull] is set,
   /// `started_at` is dropped if the task already has one (preserves the first
   /// execution start across pause/resume cycles).
@@ -578,6 +608,8 @@ ProgrammerTask _applyUpdateFields(ProgrammerTask t, Map<String, dynamic> f) {
     assigneeId:
         f.containsKey('assignee_id') ? f['assignee_id'] as String? : t.assigneeId,
     creatorId: t.creatorId,
+    projectId:
+        f.containsKey('project_id') ? f['project_id'] as String? : t.projectId,
     createdAt: t.createdAt,
     startedAt: f.containsKey('started_at') ? parseOpt('started_at') : t.startedAt,
     completedAt: