Fix ClickHouse health check: use clickhouse-client instead of wget on port 8123

BusyBox wget in the clickhouse alpine image exits 0 even on connection refused,
making the health check always pass (false positive). Additionally, port 8123
(HTTP interface) is not exposed by this image -- only port 9000 (native protocol).

Replace with: clickhouse-client --query "SELECT 1" 2>/dev/null | grep -q "^1"
This correctly exits 1 when the server is unavailable and 0 when ready.
Also halve the interval (30s->15s) and double retries (10->20) so Docker has
more attempts within the same total window before marking the container unhealthy.

Verified locally: container reaches (healthy) status within 35 seconds.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: sntiwari1

docker-compose-v1.yml

@@ -382,10 +382,10 @@ services:
     ports:
       - '9002:9000'
     healthcheck:
-      test: ['CMD-SHELL', 'wget -nv -t1 --spider http://localhost:8123/ping || exit 1']
-      interval: 30s
+      test: ['CMD-SHELL', 'clickhouse-client --query "SELECT 1" 2>/dev/null | grep -q "^1"']
+      interval: 15s
       timeout: 10s
-      retries: 10
+      retries: 20
       start_period: 30s
   id-gen-service:
     image: ghcr.io/sunbird-rc/id-gen-service:${RELEASE_VERSION}