Commit the Projects/Tasks/Ideas/TaskComments feature

This was already implemented, migrated, and running live, but had
never been committed. Bringing it into git: Project/Task/Idea/
TaskComment models, their JSON API (CRUD + status transitions,
task comments, idea<->project linking), Livewire UI pages, and the
nav/route wiring for them. All 42 of its own tests pass.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

app/Http/Controllers/Api/TaskCommentController.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace App\Http\Controllers\Api;
+
+use App\Http\Controllers\Controller;
+use App\Http\Requests\StoreTaskCommentRequest;
+use App\Http\Resources\TaskCommentResource;
+use App\Models\Task;
+use App\Models\TaskComment;
+use Illuminate\Http\Request;
+
+class TaskCommentController extends Controller
+{
+    /**
+     * Get all comments for a task.
+     */
+    public function index(Request $request, Task $task)
+    {
+        $comments = $task->comments()->orderBy('created_at')->get();
+
+        return TaskCommentResource::collection($comments);
+    }
+
+    /**
+     * Create a new comment for a task.
+     */
+    public function store(StoreTaskCommentRequest $request, Task $task)
+    {
+        $comment = $task->comments()->create($request->validated());
+
+        return (new TaskCommentResource($comment))
+            ->response()
+            ->setStatusCode(201);
+    }
+
+    /**
+     * Update a comment.
+     */
+    public function update(Request $request, TaskComment $comment)
+    {
+        $request->validate([
+            'body' => ['required', 'string'],
+        ]);
+
+        $comment->update([
+            'body' => $request->string('body'),
+        ]);
+
+        return new TaskCommentResource($comment);
+    }
+
+    /**
+     * Show a single comment.
+     */
+    public function show(TaskComment $comment)
+    {
+        return new TaskCommentResource($comment);
+    }
+
+    /**
+     * Delete a comment.
+     */
+    public function destroy(TaskComment $comment)
+    {
+        $comment->delete();
+
+        return response()->noContent();
+    }
+}