feat: Allow configuring category sync interval via environment variable and log next sync time.

.env.example

@@ -10,3 +10,4 @@ JTL_SPRACHE_ID=1
 JTL_PLATTFORM_ID=1
 SERVER_PORT=3991
 SERVER_HOST=127.0.0.1
+SYNC_INTERVAL_MS=600000

category-syncer.js

@@ -62,6 +62,11 @@ class CategorySyncer extends EventEmitter {
             await this._syncFromDb();
             const duration = Date.now() - startTime;
             console.log(`✅ Sync completed successfully in ${duration}ms.`);
+
+            // Log next sync time
+            const syncInterval = parseInt(process.env.SYNC_INTERVAL_MS) || 60000;
+            const minutes = Math.round(syncInterval / 60000);
+            console.log(`⏰ Next sync in ${minutes} minute${minutes !== 1 ? 's' : ''}`);
         } catch (err) {
             console.error('❌ Sync failed:', err);
         } finally {

index.js

@@ -30,21 +30,17 @@ categorySyncer.on('synced', async ({ tree, unprunedTree, changed }) => {
 // Trigger immediate sync
 categorySyncer.triggerSync();
 
-// Check if running interactively
-if (process.stdout.isTTY) {
-    console.log('🤖 Interactive mode: Syncing every minute. Press Ctrl-C to exit.');
+// Schedule periodic sync
+const syncInterval = parseInt(process.env.SYNC_INTERVAL_MS) || 60000;
+setInterval(() => {
+    categorySyncer.triggerSync();
+}, syncInterval);
 
-    // Schedule periodic sync
-    setInterval(() => {
-        categorySyncer.triggerSync();
-    }, 60000);
-
-    // Handle graceful shutdown
-    process.on('SIGINT', () => {
-        console.log('\n👋 Bye!');
-        process.exit(0);
-    });
-}
+// Handle graceful shutdown
+process.on('SIGINT', () => {
+    console.log('\n👋 Bye!');
+    process.exit(0);
+});
 
 // Start Express server
 startServer();