[增添]添加了MetricResource的数据库以及页面元素

management-panel/database/migrations/2024_08_27_025841_create_metrics_table.php

@@ -0,0 +1,51 @@
+<?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
+    {
+        Schema::create('metrics', function (Blueprint $table) {
+            $table->id();
+            $table->string('name');
+
+            // 命名空间索引
+            $table->integer('namespace_index');
+
+            // 标识符类型，存储为整数
+            // 1 = Numeric, 2 = String, 3 = GUID
+            $table->Integer('identifier_type');
+
+            // 数值型标识符
+            $table->integer('numeric_id')->nullable();
+
+            // 字符串型标识符
+            $table->string('string_id')->nullable();
+
+            // GUID 型标识符
+            $table->char('guid_id', 36)->nullable();
+
+            $table->string('help')->nullable();
+            $table->timestamps();
+
+            // 在同一命名空间中，确保唯一标识符唯一
+            $table->unique(['namespace_index', 'numeric_id']);
+            $table->unique(['namespace_index', 'string_id']);
+            $table->unique(['namespace_index', 'guid_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('metrics');
+    }
+};