Add FiveM server template with dual deployment modes (#393)

* feat: Added fivem server

* feat: add FiveM server template with dual deployment modes

feat: add FiveM server template with dual deployment modes

- Add docker-compose.yml with spritsail/fivem image
- Support both standard FiveM server and txAdmin web interface modes
- Configure environment variables for license key management
- Add comprehensive documentation for deployment modes
- Include template.toml with optional license key configuration
- Add FiveM logo and meta.json entry
- Support persistent storage for config and txAdmin data
- Configure proper port mapping (30120 game, 40120 web UI)
- Add interactive TTY setup required for FiveM container

Template supports two modes:
- Standard: Direct server with LICENSE_KEY env var
- txAdmin: Web management with NO_DEFAULT_CONFIG=1

* docs: add deployment mode awareness to FiveM docker-compose

docs: clarify FiveM deployment modes in docker-compose

Add detailed comments explaining standard server vs txAdmin modes
to prevent configuration errors and licensing issues.

* Added all env variables.

* fix: follow Dokploy template.toml format

meta.json

@@ -1967,6 +1967,24 @@
       "self-hosted"
     ]
   },
+  {
+    "id": "fivem",
+    "name": "FiveM Server",
+    "version": "latest",
+    "description": "A modded GTA V multiplayer server with optional txAdmin web interface for easy server management.",
+    "logo": "logo.svg",
+    "links": {
+      "github": "https://github.com/spritsail/fivem",
+      "website": "https://fivem.net/",
+      "docs": "https://docs.fivem.net/docs/server-manual/"
+    },
+    "tags": [
+      "gaming",
+      "gta",
+      "multiplayer",
+      "server"
+    ]
+  },
   {
     "id": "flagsmith",
     "name": "Flagsmith",