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>

database/migrations/2026_08_03_000001_create_ideas_table.php

@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('ideas', function (Blueprint $table) {
+            $table->id();
+            $table->string('title');
+            $table->text('description')->nullable();
+            $table->string('status')->default('new'); // new, considered, planned, rejected, implemented
+            $table->foreignId('project_id')->nullable()->constrained()->nullOnDelete();
+            $table->integer('priority')->default(0);
+            $table->string('category')->nullable(); // feature, improvement, bugfix, research, other
+            $table->string('tags')->nullable(); // comma-separated tags
+            $table->foreignId('user_id')->nullable()->constrained()->nullOnDelete();
+            $table->timestamps();
+            $table->softDeletes();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('ideas');
+    }
+};