Add admin request deletion with soft delete and cleanup

Implements admin ability to delete requests with soft delete, media file cleanup, and seeding-aware torrent management. Adds new API endpoint, frontend confirmation dialog, and request actions dropdown. Updates database schema with deletedAt and deletedBy fields, and ensures all queries filter out deleted requests. Documentation added for feature and user flow.

src/app/api/admin/requests/[id]/route.ts

@@ -0,0 +1,77 @@
+/**
+ * Component: Admin Request Management API
+ * Documentation: documentation/admin-features/request-deletion.md
+ */
+
+import { NextRequest, NextResponse } from 'next/server';
+import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
+import { deleteRequest } from '@/lib/services/request-delete.service';
+
+/**
+ * DELETE /api/admin/requests/[id]
+ * Soft delete a request with intelligent cleanup (admin only)
+ *
+ * This endpoint:
+ * 1. Validates admin authorization
+ * 2. Soft deletes the request (sets deletedAt timestamp)
+ * 3. Deletes media files from the title folder
+ * 4. Handles torrents based on seeding configuration:
+ *    - Unlimited seeding (0): Keeps torrent, stops monitoring
+ *    - Seeding complete: Deletes torrent + files
+ *    - Still seeding: Keeps torrent for cleanup job
+ * 5. Allows re-requesting the same audiobook after deletion
+ */
+export async function DELETE(
+  request: NextRequest,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  return requireAuth(request, async (req: AuthenticatedRequest) => {
+    return requireAdmin(req, async () => {
+      try {
+        if (!req.user) {
+          return NextResponse.json(
+            { error: 'Unauthorized', message: 'User not authenticated' },
+            { status: 401 }
+          );
+        }
+
+        const { id } = await params;
+
+        // Perform soft delete with cleanup
+        const result = await deleteRequest(id, req.user.id);
+
+        if (!result.success) {
+          return NextResponse.json(
+            {
+              error: result.error || 'DeleteFailed',
+              message: result.message,
+            },
+            { status: result.error === 'NotFound' ? 404 : 500 }
+          );
+        }
+
+        // Return detailed result
+        return NextResponse.json({
+          success: true,
+          message: result.message,
+          details: {
+            filesDeleted: result.filesDeleted,
+            torrentsRemoved: result.torrentsRemoved,
+            torrentsKeptSeeding: result.torrentsKeptSeeding,
+            torrentsKeptUnlimited: result.torrentsKeptUnlimited,
+          },
+        });
+      } catch (error) {
+        console.error('[Admin] Failed to delete request:', error);
+        return NextResponse.json(
+          {
+            error: 'DeleteError',
+            message: 'Failed to delete request',
+            details: error instanceof Error ? error.message : 'Unknown error',
+          },
+          { status: 500 }
+        );
+      }
+    });
+  });
+}

src/app/api/admin/requests/recent/route.ts

@@ -11,8 +11,11 @@ export async function GET(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
     return requireAdmin(req, async () => {
       try {
-        // Get recent requests
+        // Get recent requests (only active, non-deleted)
     const recentRequests = await prisma.request.findMany({
+      where: {
+        deletedAt: null,
+      },
       include: {
         audiobook: {
           select: {