Add migration file for equipment masters

database/migrations/2025_09_01_111232_create_equipment_masters_table.php

@@ -0,0 +1,52 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        $sql = <<<'SQL'
+            CREATE TABLE equipment_masters (
+                id					               	BIGINT GENERATED always AS IDENTITY PRIMARY KEY,
+                plant_id							BIGINT NOT NULL,
+                machine_id							BIGINT NOT NULL,
+                name							   	TEXT DEFAULT NULL,
+                description						   	TEXT DEFAULT NULL,
+                make							  	TEXT DEFAULT NULL,
+                model								TEXT DEFAULT NULL,
+                equipment_number					TEXT DEFAULT NULL,
+                instrument_serial_number			TEXT DEFAULT NULL,
+                calibrated_on						TIMESTAMP NOT NULL DEFAULT NOW(),
+                frequency							INT NOT NULL DEFAULT (1),
+                next_calibration_date				TIMESTAMP NOT NULL DEFAULT NOW(),
+                calibrated_by						TEXT DEFAULT NULL,
+                calibration_certificate				TEXT DEFAULT NULL,
+                created_at							TIMESTAMP NOT NULL DEFAULT NOW(),
+                updated_at							TIMESTAMP NOT NULL DEFAULT NOW(),
+                created_by							TEXT DEFAULT NULL,
+                updated_by							TEXT DEFAULT NULL,
+                deleted_at			                TIMESTAMP,
+
+                unique(plant_id, equipment_number),
+                FOREIGN KEY (plant_id)             REFERENCES  plants (id),
+                FOREIGN KEY (machine_id)           REFERENCES machines(id)
+
+            );
+        SQL;
+        DB::statement($sql);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('equipment_masters');
+    }
+};