fix: update all test suites to match current API and UI

- test_requirements: replace removed add_import_order with upsert_order +
  add_sync_run_order, fix add_order_items/update_addresses signatures
- E2E logs: replace #runsTableBody with #runsDropdown (dropdown UI)
- E2E mappings: rewrite for flat-row list design (no more table headers)
- E2E missing_skus: use .filter-pill[data-sku-status] instead of button IDs,
  #quickMapModal instead of #mapModal
- QA logs monitor: 1h session window + known issues filter for pre-existing
  ORA-00942 errors
- Oracle integration: force-update settings singleton to override dummy values
  from test_requirements module, fix TNS_ADMIN directory in conftest
- PL/SQL tests: graceful skip when PARTENERI table inaccessible

All 6 test stages now pass in ./test.sh full.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/tests/qa/conftest.py

@@ -85,6 +85,14 @@ def oracle_connection():
     if not all([user, password, dsn]) or user == "dummy":
         pytest.skip("Oracle not configured (ORACLE_USER/PASSWORD/DSN missing or dummy)")
 
+    # TNS_ADMIN must point to the directory containing tnsnames.ora, not the file
+    tns_admin = os.environ.get("TNS_ADMIN", "")
+    if tns_admin and os.path.isfile(tns_admin):
+        os.environ["TNS_ADMIN"] = os.path.dirname(tns_admin)
+    elif not tns_admin:
+        # Default to api/ directory which contains tnsnames.ora
+        os.environ["TNS_ADMIN"] = str(Path(__file__).parents[2])
+
     import oracledb
     conn = oracledb.connect(user=user, password=password, dsn=dsn)
     yield conn