feat: Implement Dynamics CRUD

app/Models/Dynamic.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+class Dynamic extends Model
+{
+    /** @use HasFactory<\Database\Factories\DynamicFactory> */
+    use HasFactory;
+
+    protected $fillable = [
+        'name',
+        'rules',
+    ];
+
+    public function participants(): BelongsToMany
+    {
+        return $this->belongsToMany(User::class, 'participants');
+    }
+
+    public function ledgers(): HasMany
+    {
+        return $this->hasMany(Ledger::class);
+    }
+}