ci: wire dokploy deploy triggers #no_deploy

src/apps/core/startup_checks.py

@@ -39,8 +39,22 @@ def _check_db(timeout_seconds: int) -> tuple[bool, str]:
     try:
         conn = psycopg2.connect(**params)
         with conn.cursor() as cursor:
-            cursor.execute("SELECT 1")
-            cursor.fetchone()
+            cursor.execute(
+                """
+                SELECT pg_encoding_to_char(encoding)
+                FROM pg_database
+                WHERE datname = current_database()
+                """
+            )
+            row = cursor.fetchone()
+            encoding = row[0] if row else None
+            if encoding != "UTF8":
+                return (
+                    False,
+                    f"{params['host']}:{params['port']}/{params['dbname']} "
+                    f"(database encoding is {encoding or 'unknown'}, expected UTF8; "
+                    "recreate the database with ENCODING 'UTF8')",
+                )
         return True, "OK"
     except Exception as exc:  # noqa: BLE001
         target = f"{params['host']}:{params['port']}/{params['dbname']}"