fix(doctor): exclude checkpoints/embeddings from duplicate filename detection (#934)

Duplicate filename detection is only relevant for LoRAs, which use
basename-only syntax (<lora:name:strength>). Checkpoints and diffusion
models reference files via relative paths with extensions, so filename
conflicts there are false positives — there is no resolution ambiguity.

Both _log_duplicate_filename_summary() and DoctorHandler's
_check_filename_conflicts() now skip scanners with model_type != 'lora'.

py/routes/handlers/misc_handlers.py

@@ -995,6 +995,12 @@ class DoctorHandler:
         total_conflict_files = 0
 
         for model_type, label, factory in self._scanner_factories:
+            # Duplicate filename detection targets LoRAs which use basename-only
+            # syntax (<lora:name:strength>). Checkpoints/embeddings reference
+            # models via relative paths with extensions, so conflicts there would
+            # be false positives.
+            if model_type != "lora":
+                continue
             try:
                 scanner = await factory()
                 hash_index = getattr(scanner, "_hash_index", None)

py/services/model_scanner.py

@@ -1101,7 +1101,10 @@ class ModelScanner:
 
     def _log_duplicate_filename_summary(self) -> None:
         """Log a batched summary of duplicate filename conflicts once per scan."""
-        if self._hash_index is None:
+        # Duplicate filename detection is only relevant for LoRAs, which use
+        # basename-only syntax (<lora:name:strength>). Checkpoints and embeddings
+        # use full relative paths for resolution, so conflicts are not ambiguous.
+        if self._hash_index is None or self.model_type != "lora":
             return
 
         duplicates = self._hash_index.get_duplicate_filenames()

tests/services/test_model_scanner.py

@@ -636,6 +636,8 @@ async def test_log_duplicate_filename_summary_logs_warning(tmp_path: Path, caplo
     root = tmp_path / "loras"
     root.mkdir()
     scanner = DummyScanner(root)
+    # Duplicate filename detection is only active for LoRAs
+    scanner.model_type = "lora"
 
     # Simulate duplicate filenames in the hash index
     scanner._hash_index.add_entry("aaa111", str(root / "model.safetensors"))
@@ -646,7 +648,7 @@ async def test_log_duplicate_filename_summary_logs_warning(tmp_path: Path, caplo
     assert len(caplog.records) >= 1
     log_msg = caplog.records[-1].message
     assert "Duplicate filename conflict detected" in log_msg
-    assert "1 dummy filename(s)" in log_msg
+    assert "1 lora filename(s)" in log_msg
     assert "2 files total" in log_msg