scripts: skip missing tables in db check

scripts/check_db_connectivity.py

@@ -2,7 +2,7 @@
 from __future__ import annotations
 
 import os
-from sqlalchemy import create_engine, text
+from sqlalchemy import create_engine, inspect, text
 
 TABLES_TO_CHECK = [
     "otree_session",
@@ -22,7 +22,11 @@ def main() -> int:
     try:
         with engine.connect() as conn:
             print(f"[db-debug] Connected; dialect={conn.dialect.name}")
+            inspector = inspect(conn)
             for table in TABLES_TO_CHECK:
+                if not inspector.has_table(table):
+                    print(f"[db-debug] {table}: missing (skipping)")
+                    continue
                 try:
                     count = conn.execute(text(f"SELECT COUNT(*) FROM {table}")).scalar()
                     print(f"[db-debug] {table}: {count}")