Migrate to laravel ai sdk (#181)

Also
* upgrade to livewire 4
* replace rappsoft tables with filament

app/Models/ChatWithConversation.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
+use Illuminate\Support\Str;
+
+class ChatWithConversation extends Model
+{
+    protected $table = 'agent_conversations';
+
+    public $incrementing = false;
+
+    protected $keyType = 'string';
+
+    protected $fillable = [
+        'id',
+        'user_id',
+        'title',
+        'chatable_type',
+        'chatable_id',
+    ];
+
+    protected static function boot(): void
+    {
+        parent::boot();
+
+        static::creating(function (ChatWithConversation $model) {
+            if (empty($model->id)) {
+                $model->id = (string) Str::uuid7();
+            }
+        });
+    }
+
+    public function chatable(): MorphTo
+    {
+        return $this->morphTo();
+    }
+
+    public function messages(): HasMany
+    {
+        return $this->hasMany(AgentConversationMessage::class, 'conversation_id');
+    }
+}