wip: punkt 2 (test-DB) — conftest.py optimized (skip DROP SCHEMA if tables exist, exclude alembic_version from TRUNCATE, 30s lock_timeout), deadlock issue with clean_tables fixture identified

tests/conftest.py

@@ -113,8 +113,24 @@ def db_setup():
     Uses SET lock_timeout to prevent deadlocks when multiple test processes
     try to DROP SCHEMA simultaneously. Falls back to TRUNCATE if DROP fails.
     """
+    # Check if tables already exist — skip DROP/CREATE if they do
     sync_eng = _get_sync_engine()
     with sync_eng.connect() as conn:
+        result = conn.execute(text("SELECT count(*) FROM pg_tables WHERE schemaname='public';"))
+        table_count = result.scalar()
+        if table_count and table_count > 10:
+            # Tables already exist — just TRUNCATE (exclude alembic_version)
+            conn.execute(text("SET lock_timeout = '30s';"))
+            conn.execute(text(
+                "DO $$ DECLARE r RECORD; BEGIN "
+                "FOR r IN (SELECT tablename FROM pg_tables WHERE schemaname='public' AND tablename != 'alembic_version') "
+                "LOOP EXECUTE 'TRUNCATE TABLE public.' || quote_ident(r.tablename) || ' CASCADE'; "
+                "END LOOP; END $$;"
+            ))
+            conn.commit()
+            sync_eng.dispose()
+            yield
+            return
         # Create crm_user role if missing (needed by some migrations)
         conn.execute(text("DO $$ BEGIN IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'crm_user') THEN CREATE ROLE crm_user LOGIN PASSWORD 'leocrm'; END IF; END $$;"))
         # Set a short lock timeout to prevent deadlocks
@@ -124,7 +140,6 @@ def db_setup():
             conn.execute(text("CREATE SCHEMA public;"))
             conn.execute(text("GRANT ALL ON SCHEMA public TO leocrm;"))
         except Exception:
-            # If DROP SCHEMA deadlocks, fall back to TRUNCATE all tables
             conn.rollback()
             conn.execute(text("SET lock_timeout = '5s';"))
             conn.execute(text(