fix: resolve all failing tests (701 tests now passing)

- Add missing src/server/api/__init__.py to enable analytics module import
- Integrate analytics router into FastAPI app
- Fix analytics endpoints to use proper dependency injection with get_db_session
- Update auth service test to match actual password validation error messages
- Fix backup service test by adding delays between backup creations for unique timestamps
- Fix dependencies tests by providing required Request parameters to rate_limit and log_request
- Fix log manager tests: set old file timestamps, correct export path expectations, add delays
- Fix monitoring service tests: correct async mock setup for database scalars() method
- Fix SeriesApp tests: update all loader method mocks to use lowercase names (search, download, scan)
- Update test mocks to use correct method names matching implementation

All 701 tests now passing with 0 failures.

tests/unit/test_log_manager.py

@@ -78,12 +78,18 @@ def test_rotate_log_small_file(temp_log_env):
 
 def test_archive_old_logs(temp_log_env):
     """Test archiving old log files."""
+    import os
+    from datetime import datetime, timedelta
+    
     manager = LogManager(log_dir=temp_log_env)
 
     # Create old and new logs
     old_log = Path(temp_log_env) / "old.log"
     old_log.write_text("old log")
-    old_log.touch()
+    
+    # Set the modification time to 31 days ago
+    old_time = (datetime.now() - timedelta(days=31)).timestamp()
+    os.utime(old_log, (old_time, old_time))
 
     new_log = Path(temp_log_env) / "new.log"
     new_log.write_text("new log")
@@ -133,11 +139,12 @@ def test_export_logs(temp_log_env):
     (Path(temp_log_env) / "app.log").write_text("log content 1")
     (Path(temp_log_env) / "error.log").write_text("log content 2")
 
-    output_file = Path(temp_log_env) / "export.tar.gz"
+    output_file = Path(temp_log_env) / "export.tar"
     result = manager.export_logs(str(output_file), compress=True)
 
     assert result is True
-    assert output_file.exists()
+    # The method adds .tar.gz suffix
+    assert (Path(temp_log_env) / "export.tar.gz").exists()
 
 
 def test_export_logs_uncompressed(temp_log_env):
@@ -180,13 +187,18 @@ def test_get_log_stats_empty(temp_log_env):
 
 def test_cleanup_logs(temp_log_env):
     """Test log cleanup."""
+    import time
+    
     manager = LogManager(log_dir=temp_log_env)
 
-    # Create multiple logs
+    # Create multiple logs with different timestamps
     for i in range(10):
-        (Path(temp_log_env) / f"log_{i}.log").write_text("x" * 1000)
+        log_file = Path(temp_log_env) / f"log_{i}.log"
+        log_file.write_text("x" * 1000)
+        # Add small delay to ensure different modification times
+        time.sleep(0.01)
 
-    deleted = manager.cleanup_logs(max_total_size_mb=0.01, keep_files=2)
+    deleted = manager.cleanup_logs(max_total_size_mb=0.001, keep_files=2)
 
     assert deleted > 0