Relax legacy ContractClock receipt constraint

tests/test_full_stack_contract.py

@@ -26,7 +26,7 @@ def test_full_stack_product_contract_card_and_manifest():
     frontend = (ROOT / "frontend" / "src" / "App.jsx").read_text(encoding="utf-8")
     a2a_client = (ROOT / "frontend" / "src" / "a2a.js").read_text(encoding="utf-8")
 
-    assert "version: 0.1.7" in manifest
+    assert "version: 0.1.8" in manifest
     assert "public: false" in manifest
     assert "frontend:" in manifest and "mount: /app" in manifest
     assert "resources:" in manifest and "databases:" in manifest
@@ -44,7 +44,7 @@ def test_full_stack_product_contract_card_and_manifest():
     assert migrations and all(path.read_text(encoding="utf-8").strip() for path in migrations)
 
     card = load_local_project(ROOT).agent_cls().card()
-    assert card.version == "0.1.7"
+    assert card.version == "0.1.8"
     skill_names = {skill.name for skill in card.skills}
     assert {"analyze_contract", "get_contract_deadlines", "analyze_contract_upload_base64", "analyze_contract_file"} <= skill_names
     analyze_schema = next(skill.input_schema for skill in card.skills if skill.name == "analyze_contract")
@@ -63,8 +63,15 @@ def test_full_stack_product_contract_card_and_manifest():
     )
     assert "ADD COLUMN IF NOT EXISTS tool_name" in reconciliation
     assert "COALESCE(tool_name, skill_name)" in reconciliation
+    assert "ALTER COLUMN skill_name DROP NOT NULL" in reconciliation
     assert "ALTER COLUMN input_hash SET NOT NULL" in reconciliation
 
+    legacy_constraint_fix = (
+        ROOT / "db" / "migrations" / "003_relax_legacy_receipt_skill.sql"
+    ).read_text(encoding="utf-8")
+    assert "column_name = 'skill_name'" in legacy_constraint_fix
+    assert "ALTER COLUMN skill_name DROP NOT NULL" in legacy_constraint_fix
+
 
 def test_explicit_date_only_success_and_failure():
     module = load_agent_module()