create service count floor level and retributions

app/Models/MasterParameter.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class MasterParameter extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'parameter_code',
+        'parameter_name',
+        'default_value',
+        'unit',
+        'description',
+    ];
+
+    protected $casts = [
+        'default_value' => 'decimal:6',
+    ];
+
+    /**
+     * Relationship to FormulaParameter
+     */
+    public function formulaParameters()
+    {
+        return $this->hasMany(FormulaParameter::class, 'parameter_id');
+    }
+
+    /**
+     * Relationship to MasterFormula through FormulaParameter
+     */
+    public function formulas()
+    {
+        return $this->belongsToMany(MasterFormula::class, 'formula_parameters', 'parameter_id', 'formula_id');
+    }
+
+    /**
+     * Scope untuk mencari berdasarkan parameter code
+     */
+    public function scopeByCode($query, $code)
+    {
+        return $query->where('parameter_code', $code);
+    }
+
+    /**
+     * Method untuk mendapatkan nilai parameter dengan fallback ke default
+     */
+    public function getValue($customValue = null)
+    {
+        return $customValue !== null ? $customValue : $this->default_value;
+    }
+}