Fix integration test import after removing compute_global_coherence

Updated test_remesh_operator_integration.py to use centralized compute_coherence
from tnfr.metrics.common instead of removed compute_global_coherence function.
All 101 REMESH tests now passing.

Co-authored-by: fermga <203334638+fermga@users.noreply.github.com>

Author: Copilot

tests/unit/operators/test_remesh_operator_integration.py

@@ -15,8 +15,8 @@
 from tnfr.operators.remesh import (
     StructuralIdentity,
     structural_similarity,
-    compute_global_coherence,
 )
+from tnfr.metrics.common import compute_coherence
 from tnfr.alias import get_attr, set_attr
 from tnfr.constants import inject_defaults
 from tnfr.constants.aliases import ALIAS_EPI, ALIAS_VF, ALIAS_DNFR, ALIAS_THETA
@@ -36,15 +36,16 @@ def test_remesh_with_IL_hierarchical(self):
         set_attr(G.nodes[1], ALIAS_VF, 1.0)
         set_attr(G.nodes[node if "node" in locals() else 1], ALIAS_THETA, 1.0)
         set_attr(G.nodes[1], ALIAS_THETA, 1.0)
+        set_attr(G.nodes[1], ALIAS_DNFR, 0.1)  # Set ΔNFR for coherence calc
 
         # Capture identity before
         identity_before = StructuralIdentity.capture_from_node(G.nodes[1])
 
         # Apply REMESH → IL sequence
         run_sequence(G, 1, [Recursivity(), Coherence()])
 
-        # Verify coherence increased (IL effect)
-        coherence = compute_global_coherence(G)
+        # Verify coherence increased (IL effect) using canonical function
+        coherence = compute_coherence(G)
         assert coherence > 0.5  # Should be stabilized
 
         # Verify identity preserved