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/build/.devcontainer/codespaces.yml

@@ -0,0 +1,21 @@
+services:
+  windows:
+    container_name: windows
+    image: ghcr.io/dockur/windows
+    environment:
+      RAM_SIZE: "half"
+      DISK_SIZE: "max"
+      CPU_CORES: "max"
+    devices:
+      - /dev/kvm
+      - /dev/net/tun
+    cap_add:
+      - NET_ADMIN
+    ports:
+      - 8006:8006
+      - 3389:3389/tcp
+      - 3389:3389/udp
+    volumes:
+      - ./windows:/storage
+    restart: on-failure
+    stop_grace_period: 2m