fix: prune deleted Synology calendars from settings list

When loading calendar connections, the API now fetches the live calendar
list from Synology and removes entries that no longer exist on the server.

v1.57.2

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "my-weekly-todo-list",
-  "version": "1.57.1",
+  "version": "1.57.2",
   "description": "A web-based weekly task management application that organizes to-dos and calendar events in a single, intuitive weekly view",
   "main": "index.js",
   "scripts": {

src/app/api/calendar/connections/route.ts

@@ -3,6 +3,7 @@ import { getServerSession } from 'next-auth';
 import { authOptions } from "@/lib/auth";
 import { prisma } from '@/lib/prisma';
 import { refreshConnectionCache, RefreshableConnection } from '@/lib/calendar-cache';
+import { getUserCalendars as getSynologyCalendars } from '@/lib/synology-calendar';
 
 // Get user's calendar connections
 export async function GET(request: NextRequest) {
@@ -30,18 +31,39 @@ export async function GET(request: NextRequest) {
         }
 
         // Return calendar connections (without sensitive tokens)
-        const connections = user.calendarConnections.map(conn => {
+        // Prune deleted calendars from providers that support live listing
+        const connections = await Promise.all(user.calendarConnections.map(async (conn) => {
             let calendars = conn.calendars as any[] | null;
 
             // For Apple connections, filter out VTODO/Reminders collections
-            // that may have been stored before the VEVENT-only filter was added.
-            // Reminder list URLs contain '/reminders/' in the path.
             if (conn.provider === 'apple' && Array.isArray(calendars)) {
                 calendars = calendars.filter((cal: any) =>
                     !cal.id?.includes('/reminders/')
                 );
             }
 
+            // For Synology connections, prune calendars deleted on the server
+            if (conn.provider === 'synology' && Array.isArray(calendars) && calendars.length > 0) {
+                try {
+                    const [username, password] = conn.accessToken.split(':');
+                    const serverUrl = conn.refreshToken;
+                    if (username && password && serverUrl) {
+                        const freshCalendars = await getSynologyCalendars(serverUrl, username, password);
+                        const freshIds = new Set(freshCalendars.map(c => c.id));
+                        const pruned = calendars.filter((c: any) => freshIds.has(c.id));
+                        if (pruned.length < calendars.length) {
+                            calendars = pruned;
+                            await prisma.calendarConnection.update({
+                                where: { id: conn.id },
+                                data: { calendars: pruned },
+                            });
+                        }
+                    }
+                } catch (err) {
+                    console.error('[CONNECTIONS] Synology calendar pruning failed:', err);
+                }
+            }
+
             return {
                 id: conn.id,
                 provider: conn.provider,
@@ -49,7 +71,7 @@ export async function GET(request: NextRequest) {
                 createdAt: conn.createdAt,
                 expiresAt: conn.expiresAt,
             };
-        });
+        }));
 
         return NextResponse.json({ connections });
     } catch (error) {