feat: Payment 订单商品化——多态 payable 关联购买实体

- payments 表新增 payable_type/payable_id（nullableMorphs），订单可关联文章/套餐等可购买实体
- createOrder 接收 $payable 模型，取代 description 字符串解析
- membership 支付回调按 payable instanceof 分发（激活订阅 / 解锁单篇）
- Post/MembershipPlan 提供 payableLabel/payableUrl 约定方法；Payment 用约定方法生成展示标签与后台链接（皮肤等新实体可直接接入）
- 订单表格新增「类型」徽章（文章/会员套餐），商品列链接到对应后台编辑页；无 payable 的旧订单显示 —

plugins/neatstudio.payment/database/migrations/2026_08_12_100000_add_payable_to_payments_table.php

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('payments', function (Blueprint $table) {
+            $table->nullableMorphs('payable');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('payments', function (Blueprint $table) {
+            $table->dropMorphs('payable');
+        });
+    }
+};

plugins/neatstudio.payment/src/Filament/Resources/PaymentResource.php

@@ -42,7 +42,22 @@ class PaymentResource extends Resource
             ->columns([
                 \Filament\Tables\Columns\TextColumn::make('order_no')->label('订单号')->searchable(),
                 \Filament\Tables\Columns\TextColumn::make('user.name')->label('用户'),
-                \Filament\Tables\Columns\TextColumn::make('subject')->label('商品')->limit(30),
+                \Filament\Tables\Columns\TextColumn::make('subject')->label('商品')
+                    ->limit(30)
+                    ->url(fn (Payment $record) => $record->payable_url),
+                \Filament\Tables\Columns\TextColumn::make('payable_type')->label('类型')
+                    ->badge()
+                    ->placeholder('—')
+                    ->formatStateUsing(fn ($state) => match (class_basename((string) $state)) {
+                        'Post' => '文章',
+                        'MembershipPlan' => '会员套餐',
+                        default => $state ? class_basename((string) $state) : '—',
+                    })
+                    ->color(fn ($state) => match (class_basename((string) $state)) {
+                        'Post' => 'info',
+                        'MembershipPlan' => 'success',
+                        default => 'gray',
+                    }),
                 \Filament\Tables\Columns\TextColumn::make('amount')->label('金额')
                     ->formatStateUsing(fn ($state) => '¥'.number_format((float) $state / 100, 2)),
                 \Filament\Tables\Columns\TextColumn::make('channel')->label('渠道')->badge(),
@@ -61,7 +76,6 @@ class PaymentResource extends Resource
                         default => 'gray',
                     }),
                 \Filament\Tables\Columns\TextColumn::make('paid_at')->label('支付时间')->dateTime('Y-m-d H:i'),
-                \Filament\Tables\Columns\TextColumn::make('created_at')->label('创建时间')->dateTime('Y-m-d H:i'),
             ])
             ->filters([
                 \Filament\Tables\Filters\SelectFilter::make('status')

plugins/neatstudio.payment/src/Models/Payment.php

@@ -8,11 +8,13 @@ namespace Plugins\Neatstudio\Payment\Models;
 use App\Models\User;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
 
 class Payment extends Model
 {
     protected $fillable = [
         'order_no', 'user_id', 'subject', 'description', 'amount', 'channel', 'status', 'gateway_trade_no', 'payload', 'paid_at',
+        'payable_type', 'payable_id',
     ];
 
     protected $casts = [
@@ -25,6 +27,40 @@ class Payment extends Model
         return $this->belongsTo(User::class);
     }
 
+    /**
+     * 可购买实体：文章（单篇解锁）、会员套餐、皮肤等。
+     */
+    public function payable(): MorphTo
+    {
+        return $this->morphTo();
+    }
+
+    public function getPayableLabelAttribute(): string
+    {
+        $payable = $this->payable;
+
+        if (! $payable) {
+            return '—';
+        }
+
+        if (method_exists($payable, 'payableLabel')) {
+            return $payable->payableLabel();
+        }
+
+        return $payable->title ?? $payable->name ?? ('#'.$payable->getKey());
+    }
+
+    public function getPayableUrlAttribute(): ?string
+    {
+        $payable = $this->payable;
+
+        if (! $payable || ! method_exists($payable, 'payableUrl')) {
+            return null;
+        }
+
+        return $payable->payableUrl();
+    }
+
     public function markPaid(string $gatewayTradeNo = null): void
     {
         $this->update([

plugins/neatstudio.payment/src/Services/PaymentManager.php

@@ -7,6 +7,7 @@ namespace Plugins\Neatstudio\Payment\Services;
 
 use App\Models\Setting;
 use App\Models\User;
+use Illuminate\Database\Eloquent\Model;
 use Illuminate\Support\Str;
 use Plugins\Neatstudio\Payment\Models\Payment;
 use Yansongda\Pay\Pay;
@@ -15,7 +16,10 @@ use Yansongda\Pay\Provider\Wechat;
 
 class PaymentManager
 {
-    public function createOrder(User $user, string $subject, int $amountCents, string $channel = 'alipay', string $description = null): Payment
+    /**
+     * 创建订单。$payable 为可购买实体（文章/套餐/皮肤），支付成功后经 payment.paid 钩子分发。
+     */
+    public function createOrder(User $user, string $subject, int $amountCents, ?Model $payable = null, string $channel = 'alipay', string $description = null): Payment
     {
         $orderNo = date('YmdHis').Str::random(8);
 
@@ -27,6 +31,8 @@ class PaymentManager
             'amount' => $amountCents,
             'channel' => $channel,
             'status' => 'pending',
+            'payable_type' => $payable?->getMorphClass(),
+            'payable_id' => $payable?->getKey(),
         ]);
     }