feat: add ApiResponse trait for standardized API responses

chore: update composer dependencies to include phppresentation

chore: update composer.lock after adding phppresentation

feat: create categories migration for category management

feat: create templates migration for template storage

feat: create template generations migration for tracking template usage

feat: create template keys migration for template customization

feat: create notifications migration for user notifications

feat: update API routes for categories, templates, and user profile management

docs: update API documentation to include new endpoints for profile and wallet

app/Models/Template.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Attributes\Fillable;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+#[Fillable([
+    'category_id',
+    'title',
+    'slug',
+    'description',
+    'file_path',
+    'thumbnail_path',
+    'is_active',
+    'created_by',
+])]
+class Template extends Model
+{
+    /**
+     * @return BelongsTo<Category, $this>
+     */
+    public function category(): BelongsTo
+    {
+        return $this->belongsTo(Category::class);
+    }
+
+    /**
+     * @return BelongsTo<User, $this>
+     */
+    public function creator(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'created_by');
+    }
+
+    /**
+     * @return HasMany<TemplateKey, $this>
+     */
+    public function keys(): HasMany
+    {
+        return $this->hasMany(TemplateKey::class)->orderBy('sort_order');
+    }
+
+    /**
+     * @return HasMany<TemplateGeneration, $this>
+     */
+    public function generations(): HasMany
+    {
+        return $this->hasMany(TemplateGeneration::class)->latest();
+    }
+
+    /**
+     * @return array<string, string>
+     */
+    protected function casts(): array
+    {
+        return [
+            'is_active' => 'boolean',
+        ];
+    }
+}