fix: remove unsupported async_insert params from ClickHouse JDBC URL

clickhouse-jdbc 0.9.7 rejects async_insert and wait_for_async_insert as
unknown URL parameters. These are server-side settings, not driver config.
Can be set per-query later if needed via custom_settings.

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

cameleer3-server-app/src/main/resources/application.yml

@@ -70,7 +70,7 @@ springdoc:
 
 clickhouse:
   enabled: ${CLICKHOUSE_ENABLED:false}
-  url: ${CLICKHOUSE_URL:jdbc:clickhouse://localhost:8123/cameleer?async_insert=1&wait_for_async_insert=0}
+  url: ${CLICKHOUSE_URL:jdbc:clickhouse://localhost:8123/cameleer}
   username: ${CLICKHOUSE_USERNAME:default}
   password: ${CLICKHOUSE_PASSWORD:}
 

deploy/base/server.yaml

@@ -78,7 +78,7 @@ spec:
             - name: CLICKHOUSE_ENABLED
               value: "true"
             - name: CLICKHOUSE_URL
-              value: "jdbc:clickhouse://clickhouse.cameleer.svc.cluster.local:8123/cameleer?async_insert=1&wait_for_async_insert=0"
+              value: "jdbc:clickhouse://clickhouse.cameleer.svc.cluster.local:8123/cameleer"
             - name: CLICKHOUSE_USERNAME
               valueFrom:
                 secretKeyRef: