implement sending Emoji, pin or mute conversation

database/factories/ConversationParticipantFactory.php

@@ -26,6 +26,7 @@ class ConversationParticipantFactory extends Factory
             'joined_at' => fake()->dateTimeBetween('-2 months', 'now'),
             'last_read_at' => fake()->optional(0.85)->dateTimeBetween('-2 weeks', 'now'),
             'muted_until' => null,
+            'pinned_at' => null,
         ];
     }
 

database/migrations/2026_05_01_075042_add_pinned_at_to_conversation_participants_table.php

@@ -0,0 +1,24 @@
+<?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::table('conversation_participants', function (Blueprint $table): void {
+            $table->timestamp('pinned_at')->nullable()->after('muted_until');
+            $table->index(['user_id', 'pinned_at']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('conversation_participants', function (Blueprint $table): void {
+            $table->dropIndex(['user_id', 'pinned_at']);
+            $table->dropColumn('pinned_at');
+        });
+    }
+};