feat: improve scheduler UI and align fetch to half-hours with tests

Made-with: Cursor

tests/test_scheduler.py

@@ -1,6 +1,7 @@
 import json
 import os
-from datetime import date, datetime
+from datetime import date, datetime, timedelta
+from zoneinfo import ZoneInfo
 from unittest.mock import MagicMock, patch
 
 from PIL import Image as PILImage
@@ -63,6 +64,48 @@ def test_scheduler_get_status(app):
         mgr.shutdown()
 
 
+def test_scheduler_starts_on_half_hour(app):
+    with app.app_context():
+        mgr = SchedulerManager(app)
+        
+        # Test when current time is before :30
+        with patch('src.scheduler.datetime') as mock_dt:
+            # Use a date far in the future so APScheduler doesn't fast-forward it
+            mock_dt.now.return_value = datetime(2030, 4, 6, 10, 15, 0)
+            mgr.start()
+            job = mgr.scheduler.get_job("rss_fetch")
+            assert job.next_run_time.minute == 30
+            assert job.next_run_time.hour == 10
+            mgr.shutdown()
+            
+        mgr = SchedulerManager(app)
+        # Test when current time is after :30
+        with patch('src.scheduler.datetime') as mock_dt:
+            mock_dt.now.return_value = datetime(2030, 4, 6, 10, 45, 0)
+            mgr.start()
+            job = mgr.scheduler.get_job("rss_fetch")
+            assert job.next_run_time.minute == 0
+            assert job.next_run_time.hour == 11
+            mgr.shutdown()
+
+
+def test_scheduler_get_status_formatting(app):
+    with app.app_context():
+        mgr = SchedulerManager(app)
+        with patch('src.scheduler.datetime') as mock_dt:
+            # Force it to start at exactly 10:30 in the future
+            mock_dt.now.return_value = datetime(2030, 4, 6, 10, 15, 0)
+            mgr.start()
+            
+            # The job's next_run_time will be timezone aware in APScheduler
+            status = mgr.get_status()
+            
+            assert "rss_fetch" in status
+            # Should look like "Apr 06, 2030 10:30 AM"
+            assert "Apr 06, 2030 10:30 AM" in status["rss_fetch"]["next_run"]
+            mgr.shutdown()
+
+
 def test_auto_publish_passes_ordered_image_paths_to_generate_cover(app, tmp_path, db):
     """First image per article in pub_date order passed to generate_cover."""
     os.makedirs(tmp_path, exist_ok=True)