fix(cli): add scope parameter to compensating emit_config_changed() calls

Pass scope="global" to emit_config_changed() in the server_connect
rollback path to maintain consistency with the scoped event details
convention established by master's ConfigService.set_value().

ISSUES CLOSED: #993

src/cleveragents/cli/commands/server.py

@@ -191,6 +191,7 @@ def server_connect(
                 key=key,
                 old_value=attempted_value,
                 new_value=original_values.get(key),
+                scope="global",
                 compensating=True,
                 reason="rollback_after_partial_server_connect_failure",
             )