fix: H3 file probe now shows Shadow negative and Video detail

The pre-load probe left out adaln_modalities, so picking an H3 file hid every
setting that needs it. Run time still checks the loaded model.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011av2BXzE4UT5HfXpnhTNJQ

modules/models/minimax_h3/__init__.py

@@ -108,16 +108,17 @@ def probe_traits(keys) -> list:
     every H3 file. Lets the UI hide LTX-only settings the moment a file is
     picked in the pipeline window, not only once something is generated.
 
-    Deliberately narrower than `traits()`: `adaln_modalities` depends on
-    which blocks an actual loaded module tree contains (full-form vs.
-    curve-form checkpoints), which the header alone cannot answer, so it is
-    left for the real load.
+    `adaln_modalities` is claimed here although the header cannot prove it
+    (full-form vs. curve-form checkpoints differ in which blocks exist). Left
+    out, the UI hid Shadow negative and Video detail for every picked H3 file.
+    A claim that turns out wrong is caught at run time: the loaded model's own
+    `traits()` is checked, and the feature is skipped with a note in the Log.
     """
     if not detect(keys):
         return []
     from comfy.latent_formats import MiniMaxH3AV
 
-    found = ["audio_stream", "dit_block_hooks"]
+    found = ["audio_stream", "dit_block_hooks", "adaln_modalities"]
     rank = _traits.LATENT_RANK.get(MiniMaxH3AV.latent_dimensions)
     if rank:
         found.append(rank)

modules/models/minimax_h3/tests/test_probe_traits.py

@@ -55,10 +55,8 @@ def test_traits_match_the_real_latent_format_class():
         assert "temporal_compression" in found
 
 
-def test_does_not_claim_adaln_modalities_without_a_real_load():
-    """The one trait probe_traits deliberately does not answer -- full-form
-    vs. curve-form checkpoints only differ in which blocks are actually
-    present, which the header's key NAMES alone (as read here) do not
-    distinguish reliably enough to assert either way."""
+def test_claims_adaln_modalities_so_h3_settings_are_not_hidden():
+    """Shadow negative and Video detail need it. The header cannot prove it, so the
+    probe is optimistic and the real load (traits()) has the last word at run time."""
     m = _module()
-    assert "adaln_modalities" not in m.probe_traits(_h3_keys())
+    assert "adaln_modalities" in m.probe_traits(_h3_keys())