fix: close duckdb connections safely, swap x/y_axis vectors, fix EVR caption after axis swap

analysis/axis_classifier.py

@@ -162,12 +162,14 @@ def _load_motion_vectors(db_path: str, window_id: str) -> Dict[int, np.ndarray]:
         import duckdb
 
         conn = duckdb.connect(db_path, read_only=True)
-        rows = conn.execute(
-            "SELECT entity_id, vector FROM svd_vectors "
-            "WHERE entity_type = 'motion' AND window_id = ?",
-            [window_id],
-        ).fetchall()
-        conn.close()
+        try:
+            rows = conn.execute(
+                "SELECT entity_id, vector FROM svd_vectors "
+                "WHERE entity_type = 'motion' AND window_id = ?",
+                [window_id],
+            ).fetchall()
+        finally:
+            conn.close()
         result: Dict[int, np.ndarray] = {}
         for entity_id, vector_raw in rows:
             try:
@@ -248,11 +250,13 @@ def _fetch_motion_titles(
 
         placeholders = ", ".join("?" for _ in motion_ids)
         conn = duckdb.connect(db_path, read_only=True)
-        rows = conn.execute(
-            f"SELECT id, title, date FROM motions WHERE id IN ({placeholders})",
-            motion_ids,
-        ).fetchall()
-        conn.close()
+        try:
+            rows = conn.execute(
+                f"SELECT id, title, date FROM motions WHERE id IN ({placeholders})",
+                motion_ids,
+            ).fetchall()
+        finally:
+            conn.close()
         return {int(row[0]): (str(row[1]), str(row[2])) for row in rows}
     except Exception as exc:
         _logger.debug("Failed to fetch motion titles: %s", exc)