Add SurrealDB documentation

Added documentation for SurrealDB service deployment and verification.

Author: Mukedlii

docs/services/surrealdb.md

@@ -0,0 +1,23 @@
+# SurrealDB
+
+SurrealDB is a multi-model database. Coolify provides one-click templates for:
+
+- SurrealDB (RocksDB)
+- SurrealDB (TiKV)
+
+## Deploy in Coolify
+1. In Coolify: New Resource → Service
+2. Select the SurrealDB template (RocksDB or TiKV)
+3. Deploy and wait until the service is Running/Healthy
+
+## Verify
+- SurrealDB should be reachable on port 8000 (if exposed)
+- Run a basic query via the SQL HTTP endpoint:
+
+```bash
+curl -sS -X POST \
+  -u "<USER>:<PASS>" \
+  -H "NS: <NAMESPACE>" \
+  -H "DB: <DATABASE>" \
+  --data "INFO FOR DB;" \
+  "http://<HOST>:<PORT>/sql"