Fix rego-tunnel docker-compose.json format and add build folder

- Convert environment from array to object format (runtipi requirement)
- Remove hardcoded KEY from docker-compose.json
- Add build folder with custom Dockerfile and rego scripts

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/rego-tunnel/docker-compose.json

@@ -4,28 +4,12 @@
     {
       "name": "rego-tunnel",
       "image": "dockurr/windows:latest",
-      "environment": [
-        {
-          "key": "RAM_SIZE",
-          "value": "${WINDOWS_RAM_GB}G"
-        },
-        {
-          "key": "CPU_CORE",
-          "value": "${WINDOWS_CPU_CORES}"
-        },
-        {
-          "key": "DISK_SIZE",
-          "value": "${WINDOWS_DISK_SIZE_GB}G"
-        },
-        {
-          "key": "VERSION",
-          "value": "${WINDOWS_VERSION}"
-        },
-        {
-          "key": "KEY",
-          "value": "B6QDN-RWKT8-G44CW-TXPBW-292XY"
-        }
-      ],
+      "environment": {
+        "RAM_SIZE": "${WINDOWS_RAM_GB}G",
+        "CPU_CORE": "${WINDOWS_CPU_CORES}",
+        "DISK_SIZE": "${WINDOWS_DISK_SIZE_GB}G",
+        "VERSION": "${WINDOWS_VERSION}"
+      },
       "internalPort": 8006,
       "volumes": [
         {
@@ -65,4 +49,4 @@
       }
     }
   ]
-}
+}