test: skip legacy program_graphs emission suite pending Stage 3 v2 migration

Author: rahlk

test/test_dataflow_emission.py

@@ -1,11 +1,16 @@
 """Emission gate: `-a 3` program_graphs in analysis.json, flag validation,
 schema round-trip, and the -a 1/-a 2 no-impact guarantee."""
 
+import pytest
+pytest.skip(
+    "Deferred to Stage 3 v2 dataflow/neo4j test migration (see issues #73, #72). "
+    "Uses deleted graph models / pre-envelope analyze() shape.",
+    allow_module_level=True,
+)
+
 import json
 from pathlib import Path
 
-import pytest
-
 from codeanalyzer.__main__ import app
 from codeanalyzer.schema import PyApplication, model_validate_json