feat(front): 官网套餐页提交开通意向线索（PlatformLead）

database/migrations/2026_03_14_022630_create_platform_leads_table.php

@@ -0,0 +1,45 @@
+<?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('platform_leads', function (Blueprint $table) {
+            $table->id();
+
+            // 对外平台线索/开通意向（前期先承接 A：站点开通型）
+            $table->string('name', 100)->default('');
+            $table->string('mobile', 30)->default('');
+            $table->string('email', 100)->default('');
+            $table->string('company', 100)->default('');
+            $table->string('source', 50)->default('platform');
+            $table->string('status', 30)->default('new');
+            $table->text('note')->nullable();
+
+            // 预期套餐（可选）
+            $table->unsignedBigInteger('plan_id')->nullable()->index();
+
+            // 扩展字段：便于后续接入 B（license）或更复杂的开通信息
+            $table->json('meta')->nullable();
+
+            $table->timestamps();
+
+            $table->index(['status', 'created_at']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('platform_leads');
+    }
+};