fix: add outer exception handling to motion helpers in axis_classifier

analysis/axis_classifier.py

@@ -185,6 +185,7 @@ def _project_motions(
 
     Returns {motion_id: (x_score, y_score)}.
     """
+    try:
         projections: Dict[int, Tuple[float, float]] = {}
         for mid, vec in motion_vecs.items():
             try:
@@ -195,6 +196,9 @@ def _project_motions(
             except Exception:
                 continue
         return projections
+    except Exception as exc:
+        _logger.debug("Failed to project motions: %s", exc)
+        return {}
 
 
 def _top_motion_ids(
@@ -208,11 +212,17 @@ def _top_motion_ids(
     Returns {'+': [motion_ids], '-': [motion_ids]} (highest positive first,
     most negative first in the '-' list).
     """
+    try:
+        if axis not in ("x", "y"):
+            raise ValueError("axis must be 'x' or 'y'")
         idx = 0 if axis == "x" else 1
         sorted_ids = sorted(projections, key=lambda mid: projections[mid][idx])
-    neg_ids = sorted_ids[:n]  # most negative
+        neg_ids = sorted_ids[:n]
-    pos_ids = sorted_ids[-n:][::-1]  # most positive
+        pos_ids = sorted_ids[-n:][::-1]
         return {"+": pos_ids, "-": neg_ids}
+    except Exception as exc:
+        _logger.debug("Failed to compute top_motion_ids: %s", exc)
+        return {"+": [], "-": []}
 
 
 def _fetch_motion_titles(
@@ -229,7 +239,7 @@ def _fetch_motion_titles(
     try:
         import duckdb
 
-        placeholders = ", ".join("?" * len(motion_ids))
+        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})",