feat: use xpier media library for uploads and markdown embeds

Store media:ID in post bodies instead of CDN URLs, and keep sablog attach tokens as a fallback.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Filament/Resources/Posts/Schemas/PostForm.php

@@ -2,18 +2,23 @@
 
 declare(strict_types=1);
 
-
 namespace App\Filament\Resources\Posts\Schemas;
 
-use App\Support\MediaDisk;
+use App\Blog\Support\MarkdownMediaEmbed;
+use Filament\Actions\Action;
 use Filament\Forms\Components\DateTimePicker;
 use Filament\Forms\Components\MarkdownEditor;
 use Filament\Forms\Components\Select;
 use Filament\Forms\Components\TextInput;
 use Filament\Forms\Components\Textarea;
 use Filament\Forms\Components\Toggle;
+use Filament\Notifications\Notification;
+use Filament\Schemas\Components\Actions;
+use Filament\Schemas\Components\Utilities\Get;
+use Filament\Schemas\Components\Utilities\Set;
 use Filament\Schemas\Schema;
-use Filament\Forms\Components\SpatieMediaLibraryFileUpload;
+use Xpier\FilamentMediaLibrary\Components\MediaPicker;
+use Xpier\FilamentMediaLibrary\Models\MediaLibrary;
 
 class PostForm
 {
@@ -39,7 +44,8 @@ class PostForm
                                 'markdown' => 'Markdown',
                                 'html' => 'HTML',
                             ])
-                            ->default('markdown'),
+                            ->default('markdown')
+                            ->live(),
                         Select::make('status')
                             ->label('状态')
                             ->options([
@@ -51,17 +57,49 @@ class PostForm
                         MarkdownEditor::make('content')
                             ->label('正文')
                             ->required()
+                            ->helperText('Markdown 插入图片用 ![说明](media:ID)，文件用 [文件名](media:ID)。不要把 CDN / 对象存储地址写进正文。')
+                            ->fileAttachments(false)
                             ->columnSpanFull(),
+                        MediaPicker::make('insert_media_id')
+                            ->label('从媒体库插入正文')
+                            ->module('articles')
+                            ->mediaType(null)
+                            ->dehydrated(false)
+                            ->helperText('选好媒体后点「插入到正文」。Markdown 写入 media:ID 引用，渲染时再换成真实地址。')
+                            ->columnSpanFull(),
+                        Actions::make([
+                            Action::make('insertSelectedMedia')
+                                ->label('插入到正文')
+                                ->action(function (Get $get, Set $set): void {
+                                    $mediaId = $get('insert_media_id');
+                                    $media = is_numeric($mediaId)
+                                        ? MediaLibrary::query()->find((int) $mediaId)
+                                        : null;
+
+                                    if (! $media instanceof MediaLibrary) {
+                                        Notification::make()->title('请先从媒体库选择文件')->warning()->send();
+
+                                        return;
+                                    }
+
+                                    $snippet = app(MarkdownMediaEmbed::class)->snippet(
+                                        $media,
+                                        (string) ($get('content_format') ?: 'markdown')
+                                    );
+                                    $set('content', rtrim((string) $get('content'))."\n\n".$snippet."\n");
+                                    $set('insert_media_id', null);
+                                    Notification::make()->title('已写入正文引用')->success()->send();
+                                }),
+                        ])->columnSpanFull(),
                     ]),
                 \Filament\Schemas\Components\Section::make('封面与摘要')
                     ->columns(2)
                     ->schema([
-                        SpatieMediaLibraryFileUpload::make('cover')
+                        MediaPicker::make('cover_media_id')
                             ->label('封面图')
-                            ->collection('cover')
-                            ->image()
-                            ->imageEditor()
-                            ->disk(MediaDisk::name())
+                            ->module('articles')
+                            ->mediaType('image')
+                            ->relationship('coverMedia')
                             ->columnSpanFull(),
                         Textarea::make('excerpt')
                             ->label('摘要（留空自动截取）')