Document Sentry self-hosted deployment

docs/services.md

@@ -529,6 +529,12 @@ Architecture:
 * Components: Relay, Kafka, Snuba, ClickHouse, PostgreSQL, Redis, SeaweedFS
 * Self-hosted deployment
 
+Entry container:
+
+* `sentry-self-hosted-nginx-1` using `nginx:1.31.0-alpine`
+* Publishes `0.0.0.0:9000 -> 80/tcp`
+* Nginx Proxy Manager forwards to `sentry-self-hosted-nginx-1:80`
+
 Networks:
 
 * `proxy` for Nginx Proxy Manager access
@@ -536,9 +542,11 @@ Networks:
 
 Management:
 
-* Managed via slcompose orchestrator
-* Automated Infisical secret injection
-* Single atomic deployment unit
+* Installed with upstream Sentry self-hosted `install.sh`
+* Install directory: `/srv/docker/sentry`
+* Managed according to the upstream Sentry self-hosted workflow
+* Exception to the standard SilverLinux `slcompose` and Infisical pattern
+* Single atomic upstream deployment unit
 
 Data Storage:
 
@@ -549,9 +557,11 @@ Data Storage:
 
 Backup Requirements:
 
+* `/srv/docker/sentry`
 * PostgreSQL database volume
 * ClickHouse data volume
 * Sentry configuration files
+* SeaweedFS data
 * Persistent Kafka data (if enabled)
 
 Status: