Phase 8 and 9 marketplace matching

app/Models/TaxonomyTerm.php

@@ -0,0 +1,45 @@
+<?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\BelongsToMany;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+#[Fillable(['parent_id', 'type', 'name', 'slug', 'description', 'sort_order', 'is_active'])]
+class TaxonomyTerm extends Model
+{
+    public const TYPES = [
+        'work_category',
+        'work_specialty',
+        'skill',
+        'tool',
+        'certification',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'is_active' => 'boolean',
+        ];
+    }
+
+    public function parent(): BelongsTo
+    {
+        return $this->belongsTo(self::class, 'parent_id');
+    }
+
+    public function children(): HasMany
+    {
+        return $this->hasMany(self::class, 'parent_id');
+    }
+
+    public function providerProfiles(): BelongsToMany
+    {
+        return $this->belongsToMany(ProviderProfile::class)
+            ->withPivot('evidence_source')
+            ->withTimestamps();
+    }
+}