NASER add task functions

database/migrations/2026_04_21_134542_create_rich_texts_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up()
+    {
+        Schema::create('rich_texts', function (Blueprint $table) {
+            $table->id();
+            $table->morphs('record');
+            $table->string('field');
+            $table->longText('body')->nullable();
+            $table->timestamps();
+
+            $table->unique(['field', 'record_type', 'record_id']);
+        });
+    }
+
+    public function down()
+    {
+        Schema::dropIfExists('rich_texts');
+    }
+};

database/migrations/2026_04_23_000001_create_task_comments_table.php

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+<?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('task_comments', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('task_id');
+            $table->unsignedBigInteger('user_id');
+            $table->text('body');
+            $table->json('mentioned_user_ids')->nullable();
+            $table->timestamps();
+
+            $table->index(['task_id', 'created_at']);
+            $table->index(['user_id', 'created_at']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('task_comments');
+    }
+};
+