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

Rename all Docker/K8s service names, DNS hostnames, secrets, volumes,
and manifest files to use the cameleer- prefix, making it clear which
software package each container belongs to.

Services renamed:
- postgres → cameleer-postgres
- clickhouse → cameleer-clickhouse
- logto → cameleer-logto
- logto-postgresql → cameleer-logto-postgresql
- traefik (service) → cameleer-traefik
- postgres-external → cameleer-postgres-external

Secrets renamed:
- postgres-credentials → cameleer-postgres-credentials
- clickhouse-credentials → cameleer-clickhouse-credentials
- logto-credentials → cameleer-logto-credentials

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

K8s manifests renamed:
- deploy/postgres.yaml → deploy/cameleer-postgres.yaml
- deploy/clickhouse.yaml → deploy/cameleer-clickhouse.yaml
- deploy/logto.yaml → deploy/cameleer-logto.yaml

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

docs/superpowers/specs/2026-03-16-storage-layer-design.md

@@ -568,7 +568,7 @@ MetricsFlushScheduler (@Scheduled)
 ### Configuration
 
 Environment variables (existing pattern):
-- `SPRING_DATASOURCE_URL=jdbc:postgresql://postgres:5432/cameleer3`
+- `SPRING_DATASOURCE_URL=jdbc:postgresql://cameleer-postgres:5432/cameleer3`
 - `SPRING_DATASOURCE_USERNAME`, `SPRING_DATASOURCE_PASSWORD`
 - `OPENSEARCH_URL=http://opensearch:9200`
 - `CAMELEER_RETENTION_DAYS=30` (applies to both PostgreSQL and OpenSearch)

docs/superpowers/specs/2026-03-31-clickhouse-migration-design.md

@@ -746,7 +746,7 @@ public void enforceRetention() {
 
 ```yaml
 clickhouse:
-  url: jdbc:clickhouse://clickhouse:8123/cameleer?async_insert=1&wait_for_async_insert=0
+  url: jdbc:clickhouse://cameleer-clickhouse:8123/cameleer?async_insert=1&wait_for_async_insert=0
   username: cameleer_app
   password: ${CLICKHOUSE_PASSWORD}
 ```

docs/superpowers/specs/2026-04-05-logto-oidc-resource-server-design.md

@@ -186,7 +186,7 @@ Update PUT handler default: `rolesClaim` from `realm_access.roles` to `roles`.
 
 | Variable | Purpose | Required |
 |----------|---------|----------|
-| `CAMELEER_OIDC_ISSUER_URI` | Logto issuer URI (e.g., `http://logto:3001/oidc`) | No — when blank, no OIDC resource server |
+| `CAMELEER_OIDC_ISSUER_URI` | Logto issuer URI (e.g., `http://cameleer-logto:3001/oidc`) | No — when blank, no OIDC resource server |
 | `CAMELEER_OIDC_AUDIENCE` | Expected audience / API resource indicator | No — when blank, audience not validated |
 
 ## Files Changed