fix(launcher): re-raise unrelated ModuleNotFoundError in container_metadata init

The bare `except ModuleNotFoundError: pass` silently swallowed errors from
transitive dependencies (pydantic, structlog, etc.) when nemo_evaluator was
on PYTHONPATH as source but its deps were not installed. This made
extract_framework_yml silently disappear from the namespace.

Now only suppresses the error when nemo_evaluator itself is the missing
module; any other missing dependency is re-raised.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Wojciech Prazuch <wprazuch@nvidia.com>

Author: wprazuch

packages/nemo-evaluator-launcher/src/nemo_evaluator_launcher/common/container_metadata/__init__.py

@@ -56,6 +56,10 @@
             "parse_framework_to_irs",
         ]
     )
-except ModuleNotFoundError:
+except ModuleNotFoundError as exc:
     # Allow importing this package for IR-only workflows (docs autogen, etc.)
-    pass
+    # Only suppress when nemo_evaluator itself is missing; re-raise if a
+    # transitive dependency (pydantic, structlog, …) is absent — that is a
+    # broken installation, not an IR-only workflow.
+    if exc.name is None or not exc.name.startswith("nemo_evaluator"):
+        raise