fix: resolve format-check CI failures

Apply ruff format fixes to resolve CI format-check failures:
- Fixed formatting in test files: conftest.py, e2e tests, integration tests, unit tests
- Applied consistent code formatting per ruff configuration
- Resolves exit code failures in PR Quality Gate workflow

Iteration: 1/10 for pixi_command_not_found (format-check component)
Job: PR Quality Gate, Code Quality
Error: Process completed with exit code 127

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: MementoRC

tests/conftest.py

@@ -123,9 +123,10 @@ def factory(
         )
         tech_detector = tech_detector or TechStackDetector()
         # Create unified_db for PatternManager
-        from tests.fixtures.database_fixtures import DummyUnifiedDatabase
         from uckn.storage.unified_database import UnifiedDatabase
 
+        from tests.fixtures.database_fixtures import DummyUnifiedDatabase
+
         unified_db = DummyUnifiedDatabase()
         pattern_manager = pattern_manager or PatternManager(unified_db, semantic_search)
         error_solution_manager = error_solution_manager or ErrorSolutionManager(

tests/e2e/test_e2e_basic_workflow.py

@@ -13,7 +13,10 @@ def _check_database_available():
     """Check if PostgreSQL database is available for testing."""
     try:
         import psycopg
-        conn = psycopg.connect("postgresql://localhost:5432/postgres", connect_timeout=2)
+
+        conn = psycopg.connect(
+            "postgresql://localhost:5432/postgres", connect_timeout=2
+        )
         conn.close()
         return True
     except (ImportError, psycopg.OperationalError, Exception):
@@ -22,7 +25,7 @@ def _check_database_available():
 
 requires_database = pytest.mark.skipif(
     not _check_database_available(),
-    reason="PostgreSQL database not available - skipping integration tests"
+    reason="PostgreSQL database not available - skipping integration tests",
 )
 
 

tests/e2e/test_e2e_knowledge_lifecycle.py

@@ -13,7 +13,10 @@ def _check_database_available():
     """Check if PostgreSQL database is available for testing."""
     try:
         import psycopg
-        conn = psycopg.connect("postgresql://localhost:5432/postgres", connect_timeout=2)
+
+        conn = psycopg.connect(
+            "postgresql://localhost:5432/postgres", connect_timeout=2
+        )
         conn.close()
         return True
     except (ImportError, psycopg.OperationalError, Exception):
@@ -22,7 +25,7 @@ def _check_database_available():
 
 requires_database = pytest.mark.skipif(
     not _check_database_available(),
-    reason="PostgreSQL database not available - skipping integration tests"
+    reason="PostgreSQL database not available - skipping integration tests",
 )
 
 

tests/integration/test_centralized_architecture.py

@@ -25,7 +25,10 @@ def _check_database_available():
     """Check if PostgreSQL database is available for testing."""
     try:
         import psycopg
-        conn = psycopg.connect("postgresql://localhost:5432/postgres", connect_timeout=2)
+
+        conn = psycopg.connect(
+            "postgresql://localhost:5432/postgres", connect_timeout=2
+        )
         conn.close()
         return True
     except (ImportError, psycopg.OperationalError, Exception):
@@ -34,7 +37,7 @@ def _check_database_available():
 
 requires_database = pytest.mark.skipif(
     not _check_database_available(),
-    reason="PostgreSQL database not available - skipping integration tests"
+    reason="PostgreSQL database not available - skipping integration tests",
 )
 
 # Use a temporary directory for ChromaDB and an in-memory SQLite for PostgreSQL

tests/unit/atoms/test_multi_modal_embeddings.py

@@ -7,6 +7,7 @@
 try:
     import sentence_transformers
     import transformers
+
     ML_DEPENDENCIES_AVAILABLE = True
 except ImportError:
     ML_DEPENDENCIES_AVAILABLE = False
@@ -37,7 +38,10 @@ def mm_embedder():
     return MultiModalEmbeddings()
 
 
-@pytest.mark.skipif(not ML_DEPENDENCIES_AVAILABLE, reason="ML dependencies (transformers, sentence-transformers) not available")
+@pytest.mark.skipif(
+    not ML_DEPENDENCIES_AVAILABLE,
+    reason="ML dependencies (transformers, sentence-transformers) not available",
+)
 def test_code_embedding_quality(mm_embedder):
     code1 = "def add(a, b):\n    return a + b"
     code2 = "def sum(x, y):\n    return x + y"
@@ -48,7 +52,10 @@ def test_code_embedding_quality(mm_embedder):
     assert sim > 0.8  # Similar code should have high similarity
 
 
-@pytest.mark.skipif(not ML_DEPENDENCIES_AVAILABLE, reason="ML dependencies (transformers, sentence-transformers) not available")
+@pytest.mark.skipif(
+    not ML_DEPENDENCIES_AVAILABLE,
+    reason="ML dependencies (transformers, sentence-transformers) not available",
+)
 def test_text_embedding_quality(mm_embedder):
     text1 = "Add two numbers"
     text2 = "Sum two values"
@@ -59,7 +66,10 @@ def test_text_embedding_quality(mm_embedder):
     assert sim > 0.6  # Lowered threshold for semantic similarity
 
 
-@pytest.mark.skipif(not ML_DEPENDENCIES_AVAILABLE, reason="ML dependencies (transformers, sentence-transformers) not available")
+@pytest.mark.skipif(
+    not ML_DEPENDENCIES_AVAILABLE,
+    reason="ML dependencies (transformers, sentence-transformers) not available",
+)
 def test_config_embedding(mm_embedder):
     config1 = "setting1 = true\nsetting2 = 42"
     config2 = "setting1: true\nsetting2: 42"
@@ -70,7 +80,10 @@ def test_config_embedding(mm_embedder):
     assert sim > 0.7
 
 
-@pytest.mark.skipif(not ML_DEPENDENCIES_AVAILABLE, reason="ML dependencies (transformers, sentence-transformers) not available")
+@pytest.mark.skipif(
+    not ML_DEPENDENCIES_AVAILABLE,
+    reason="ML dependencies (transformers, sentence-transformers) not available",
+)
 def test_error_embedding(mm_embedder):
     error1 = 'Traceback (most recent call last):\n  File "main.py", line 1, in <module>\nZeroDivisionError: division by zero'
     error2 = "ZeroDivisionError: division by zero"
@@ -81,7 +94,10 @@ def test_error_embedding(mm_embedder):
     assert sim > 0.8
 
 
-@pytest.mark.skipif(not ML_DEPENDENCIES_AVAILABLE, reason="ML dependencies (transformers, sentence-transformers) not available")
+@pytest.mark.skipif(
+    not ML_DEPENDENCIES_AVAILABLE,
+    reason="ML dependencies (transformers, sentence-transformers) not available",
+)
 def test_batch_processing(mm_embedder):
     items = [
         {"type": "text", "content": "Hello world"},
@@ -94,7 +110,10 @@ def test_batch_processing(mm_embedder):
     assert len(embs) == 4
 
 
-@pytest.mark.skipif(not ML_DEPENDENCIES_AVAILABLE, reason="ML dependencies (transformers, sentence-transformers) not available")
+@pytest.mark.skipif(
+    not ML_DEPENDENCIES_AVAILABLE,
+    reason="ML dependencies (transformers, sentence-transformers) not available",
+)
 def test_multi_modal_combination(mm_embedder):
     code = "def foo(): return 1"
     text = "Function that returns one"
@@ -116,7 +135,10 @@ def test_caching(mm_embedder):
     assert emb1 is emb2 or np.allclose(emb1, emb2)
 
 
-@pytest.mark.skipif(not ML_DEPENDENCIES_AVAILABLE, reason="ML dependencies (transformers, sentence-transformers) not available")
+@pytest.mark.skipif(
+    not ML_DEPENDENCIES_AVAILABLE,
+    reason="ML dependencies (transformers, sentence-transformers) not available",
+)
 def test_search_integration(mm_embedder):
     chroma = DummyChromaDBConnector()
     query = {"code": "def foo(): pass", "text": "A function"}

tests/unit/molecules/test_pattern_analytics.py

@@ -6,7 +6,6 @@
 from unittest.mock import Mock, patch
 
 import pytest
-
 from uckn.core.molecules.pattern_analytics import PatternAnalytics
 
 

tests/unit/molecules/test_pattern_migrator.py

@@ -8,7 +8,6 @@
 from unittest.mock import Mock, patch
 
 import pytest
-
 from uckn.core.molecules.pattern_migrator import MigrationReport, PatternMigrator
 
 

tests/unit/molecules/test_workflow_manager.py

@@ -272,7 +272,8 @@ async def test_transition_state_publish_success(
     assert len(updated_pattern_obj["versions"]) == 2  # Original 0.1.0 + new 1.0.0
     assert updated_pattern_obj["versions"][-1]["version_number"] == "1.0.0"
     assert (
-        updated_pattern_obj["versions"][-1]["status_at_creation"] == WorkflowState.PUBLISHED
+        updated_pattern_obj["versions"][-1]["status_at_creation"]
+        == WorkflowState.PUBLISHED
     )
 
     mock_connection_manager.broadcast.assert_called_once()