feat: add dynamic hospital database registry

.env.example

@@ -6,5 +6,21 @@ DB_PORT=3306
 DB_DATABASE=primaya
 DB_USERNAME=root
 DB_PASSWORD=
+DB_DEFAULT_RS_CODE=AWALBROS_DEV
+DB_DEFAULT_RS_NAME=RS Dev Awalbros
+
+# Database khusus master CPONE middleware. Jika host/user/password dikosongkan,
+# gunakan nilai DB_* di atas.
+CPONE_DB_HOST=127.0.0.1
+CPONE_DB_PORT=3306
+CPONE_DB_DATABASE=cpone_middleware
+CPONE_DB_USERNAME=root
+CPONE_DB_PASSWORD=
+
+DB_MAX_OPEN_CONNS=25
+DB_MAX_IDLE_CONNS=25
+DB_CONN_MAX_LIFETIME_MINUTES=5
 
 CPONE_BEARER_TOKEN=replace-with-a-secure-token
+CPONE_DATABASE_SETTINGS_TOKEN=replace-with-a-different-admin-token
+CPONE_DATABASE_CREDENTIAL_KEY=replace-with-a-long-random-encryption-key