add dbgate and mssql

docs/server.md

@@ -50,7 +50,13 @@ Purpose:
 
 Purpose:
 
-* Shared database platform
+* Primary PostgreSQL database platform
+
+### Microsoft SQL Server Express
+
+Purpose:
+
+* Private SQL Server platform for compatible applications
 
 ### Fail2Ban
 
@@ -93,6 +99,7 @@ Examples:
 * OpenProject
 * Jitsi Meet
 * Portainer
+* DbGate
 
 ---
 
@@ -106,6 +113,8 @@ Examples:
 * Nginx Proxy Manager
 * BaGet
 * Gitea Actions Runner
+* Microsoft SQL Server 2022 Express
+* DbGate
 
 ---
 
@@ -128,6 +137,8 @@ Contains:
 /srv/docker/nginx-proxy-manager
 /srv/docker/baget
 /srv/docker/gitea-runner
+/srv/docker/mssql
+/srv/docker/dbgate
 ```
 
 ---
@@ -143,6 +154,8 @@ Contains:
 * SMTP credentials
 * Database passwords
 * Application secrets
+* MSSQL SA password
+* Future DbGate password
 * Future OAuth credentials
 
 ---
@@ -189,6 +202,22 @@ Suggested structure:
 
 ---
 
+### Microsoft SQL Server Express
+
+```text
+/srv/docker/mssql/data
+```
+
+---
+
+### DbGate
+
+```text
+/srv/docker/dbgate/data
+```
+
+---
+
 ### Nginx Proxy Manager
 
 ```text
@@ -252,6 +281,8 @@ Implemented:
 * Shared secrets stored outside Git repositories
 * SSL certificates managed through Nginx Proxy Manager
 * PostgreSQL not exposed publicly
+* MSSQL port 1433 not exposed publicly
+* Database administration is available only through authenticated HTTPS access to DbGate
 * OpenID disabled in Gitea
 
 ---