refactor: prefix all third-party service names with cameleer-

Rename all Docker Compose service names, DNS hostnames, volumes,
and Traefik labels to use the cameleer- prefix for clear ownership.

Services renamed:
- postgres → cameleer-postgres
- clickhouse → cameleer-clickhouse
- logto → cameleer-logto
- traefik → cameleer-traefik

Volumes renamed:
- pgdata → cameleer-pgdata
- chdata → cameleer-chdata
- certs → cameleer-certs
- bootstrapdata → cameleer-bootstrapdata

Updated across:
- docker-compose.yml, docker-compose.dev.yml
- installer/cameleer/docker-compose.yml
- installer/install.sh, installer/install.ps1
- application.yml defaults
- DockerTenantProvisioner.java hardcoded URL
- logto-bootstrap.sh defaults
- VendorTenantServiceTest.java
- CLAUDE.md, docs/architecture.md, docs/user-manual.md

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

docker/logto-bootstrap.sh

@@ -7,12 +7,12 @@ set -e
 # Configures cameleer3-server OIDC.
 # Idempotent: checks existence before creating.
 
-LOGTO_ENDPOINT="${LOGTO_ENDPOINT:-http://logto:3001}"
-LOGTO_ADMIN_ENDPOINT="${LOGTO_ADMIN_ENDPOINT:-http://logto:3002}"
+LOGTO_ENDPOINT="${LOGTO_ENDPOINT:-http://cameleer-logto:3001}"
+LOGTO_ADMIN_ENDPOINT="${LOGTO_ADMIN_ENDPOINT:-http://cameleer-logto:3002}"
 LOGTO_PUBLIC_ENDPOINT="${LOGTO_PUBLIC_ENDPOINT:-http://localhost:3001}"
 MGMT_API_RESOURCE="https://default.logto.app/api"
 BOOTSTRAP_FILE="/data/logto-bootstrap.json"
-PG_HOST="${PG_HOST:-postgres}"
+PG_HOST="${PG_HOST:-cameleer-postgres}"
 PG_USER="${PG_USER:-cameleer}"
 PG_DB_LOGTO="logto"
 PG_DB_SAAS="${PG_DB_SAAS:-cameleer_saas}"