fix(surrealdb): address PR review feedback

- Deploy binary to /opt/surrealdb with symlink to /usr/local/bin
- Use literal 'SurrealDB' in messages instead of ${APP}
- Fix installation check path to /opt/surrealdb/surreal
- Update ExecStart to use /opt/surrealdb/surreal
- Use selfhst CDN logo URL and capitalize 'Debian' in JSON
- Capitalize 'Completed Successfully' to match conventions

frontend/public/json/surrealdb.json

@@ -1,44 +1,42 @@
 {
-    "name": "SurrealDB",
-    "slug": "surrealdb",
-    "categories": [
-        8
-    ],
-    "date_created": "2026-02-26",
-    "type": "ct",
-    "updateable": true,
-    "privileged": false,
-    "interface_port": 8000,
-    "documentation": "https://surrealdb.com/docs",
-    "website": "https://surrealdb.com/",
-    "logo": "https://surrealdb.com/assets/static/f8ce1df8b5823f08.7t3KDG7y.webp",
-    "config_path": "/opt/surrealdb/.env",
-    "description": "SurrealDB is a multi-model database that combines the power of document, graph, and relational databases into a single platform, offering real-time queries, built-in permissions, and a simplified backend stack.",
-    "install_methods": [
-        {
-            "type": "default",
-            "script": "ct/surrealdb.sh",
-            "resources": {
-                "cpu": 2,
-                "ram": 1024,
-                "hdd": 4,
-                "os": "debian",
-                "version": "13"
-            }
-        }
-    ],
-    "default_credentials": {
-        "username": "root",
-        "password": null
-    },
-    "notes": [
-        {
-            "text": "SurrealDB web interface is available on port 8000.",
-            "type": "info"
-        },
-        {
-            "text": "Default credentials are saved in ~/surrealdb.creds.",
-            "type": "info"
-        }
-    ]
+	"name": "SurrealDB",
+	"slug": "surrealdb",
+	"categories": [8],
+	"date_created": "2026-02-26",
+	"type": "ct",
+	"updateable": true,
+	"privileged": false,
+	"interface_port": 8000,
+	"documentation": "https://surrealdb.com/docs",
+	"website": "https://surrealdb.com/",
+	"logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/surrealdb.webp",
+	"config_path": "/opt/surrealdb/.env",
+	"description": "SurrealDB is a multi-model database that combines the power of document, graph, and relational databases into a single platform, offering real-time queries, built-in permissions, and a simplified backend stack.",
+	"install_methods": [
+		{
+			"type": "default",
+			"script": "ct/surrealdb.sh",
+			"resources": {
+				"cpu": 2,
+				"ram": 1024,
+				"hdd": 4,
+				"os": "Debian",
+				"version": "13"
+			}
+		}
+	],
+	"default_credentials": {
+		"username": "root",
+		"password": null
+	},
+	"notes": [
+		{
+			"text": "SurrealDB web interface is available on port 8000.",
+			"type": "info"
+		},
+		{
+			"text": "Default credentials are saved in ~/surrealdb.creds.",
+			"type": "info"
+		}
+	]
 }