feat: initial release of relaticle/comments

Filament comments package with:
- Polymorphic commenting on any Eloquent model
- Threaded replies with configurable depth
- @mentions with autocomplete and user search
- Emoji reactions with toggle and who-reacted tooltips
- File attachments via Livewire uploads
- Reply and mention notifications via Filament notification system
- Thread subscriptions for notification control
- Real-time broadcasting (opt-in Echo) with polling fallback
- Dark mode support
- CommentsAction, CommentsTableAction, CommentsEntry for Filament integration
- 204 tests, 421 assertions

tests/Feature/CommentSubscriptionTest.php

@@ -0,0 +1,107 @@
+<?php
+
+use Relaticle\Comments\Comment;
+use Relaticle\Comments\CommentSubscription;
+use Relaticle\Comments\Config;
+use Relaticle\Comments\Tests\Models\Post;
+use Relaticle\Comments\Tests\Models\User;
+
+it('has commentable morphTo relationship', function () {
+    $user = User::factory()->create();
+    $post = Post::factory()->create();
+
+    $subscription = CommentSubscription::create([
+        'commentable_id' => $post->id,
+        'commentable_type' => $post->getMorphClass(),
+        'user_id' => $user->getKey(),
+        'user_type' => $user->getMorphClass(),
+    ]);
+
+    expect($subscription->commentable)->toBeInstanceOf(Post::class)
+        ->and($subscription->commentable->id)->toBe($post->id);
+});
+
+it('has user morphTo relationship', function () {
+    $user = User::factory()->create();
+    $post = Post::factory()->create();
+
+    $subscription = CommentSubscription::create([
+        'commentable_id' => $post->id,
+        'commentable_type' => $post->getMorphClass(),
+        'user_id' => $user->getKey(),
+        'user_type' => $user->getMorphClass(),
+    ]);
+
+    expect($subscription->user)->toBeInstanceOf(User::class)
+        ->and($subscription->user->id)->toBe($user->id);
+});
+
+it('returns database as default notification channel', function () {
+    expect(Config::getNotificationChannels())->toBe(['database']);
+});
+
+it('returns custom channels when configured', function () {
+    config()->set('comments.notifications.channels', ['database', 'mail']);
+
+    expect(Config::getNotificationChannels())->toBe(['database', 'mail']);
+});
+
+it('returns true for shouldAutoSubscribe by default', function () {
+    expect(Config::shouldAutoSubscribe())->toBeTrue();
+});
+
+it('returns false for shouldAutoSubscribe when configured', function () {
+    config()->set('comments.subscriptions.auto_subscribe', false);
+
+    expect(Config::shouldAutoSubscribe())->toBeFalse();
+});
+
+it('checks if user is subscribed to a commentable via isSubscribed()', function () {
+    $user = User::factory()->create();
+    $post = Post::factory()->create();
+
+    expect(CommentSubscription::isSubscribed($post, $user))->toBeFalse();
+
+    CommentSubscription::create([
+        'commentable_id' => $post->id,
+        'commentable_type' => $post->getMorphClass(),
+        'user_id' => $user->getKey(),
+        'user_type' => $user->getMorphClass(),
+    ]);
+
+    expect(CommentSubscription::isSubscribed($post, $user))->toBeTrue();
+});
+
+it('creates subscription via subscribe() static method', function () {
+    $user = User::factory()->create();
+    $post = Post::factory()->create();
+
+    CommentSubscription::subscribe($post, $user);
+
+    expect(CommentSubscription::isSubscribed($post, $user))->toBeTrue();
+});
+
+it('removes subscription via unsubscribe() static method', function () {
+    $user = User::factory()->create();
+    $post = Post::factory()->create();
+
+    CommentSubscription::subscribe($post, $user);
+    CommentSubscription::unsubscribe($post, $user);
+
+    expect(CommentSubscription::isSubscribed($post, $user))->toBeFalse();
+});
+
+it('is idempotent when subscribing twice', function () {
+    $user = User::factory()->create();
+    $post = Post::factory()->create();
+
+    CommentSubscription::subscribe($post, $user);
+    CommentSubscription::subscribe($post, $user);
+
+    expect(CommentSubscription::where([
+        'commentable_id' => $post->id,
+        'commentable_type' => $post->getMorphClass(),
+        'user_id' => $user->getKey(),
+        'user_type' => $user->getMorphClass(),
+    ])->count())->toBe(1);
+});