Adding Manual connection point to allow undeclared fits

app/services/fit_matching.py

@@ -76,7 +76,12 @@ def _static_clamp_match(ap_a: AttachmentPoint, ap_b: AttachmentPoint) -> bool:
 
 
 def attachment_points_match(ap_a: AttachmentPoint, ap_b: AttachmentPoint) -> bool:
-    """True if these two attachment points satisfy the fit-matching algorithm."""
+    """True if these two attachment points satisfy the fit-matching algorithm.
+
+    A "Manual" attachment point (all four connections null) always returns
+    False here — it never participates in algorithmic matching, only in
+    fits a user asserts by hand.
+    """
     # Disabled for now, the attachment_point_names should not be considered for the purposes of matching
     # if ap_a.attachment_point_name_id == ap_b.attachment_point_name_id:
     #     return False