feat: add Wine Z: path prefix for Windows platform on Linux host

- Add winePath helper that prepends Z: when platform is windows on Linux
- Thread platform through buildModPath, buildAutoArgs, and Start()
- Apply Z: prefix to -config=, -mod=, -profiles=, and %command% binary paths
- Add tests for winePath, buildAutoArgs, and buildModPath with platform param
- Fix formatting across services package with gofmt
- Include all prior bug fixes from this branch

.gitea/workflows/ci.yml

@@ -16,6 +16,8 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: "22"
+      - run: cd frontend && npm ci && npm run build
+      - run: mkdir -p backend/embed/dist && cp -r frontend/dist/. backend/embed/dist/
       - run: cd backend && go build ./...
       - run: cd backend && go test ./...
-      - run: cd frontend && npm ci && npm run build && npm test
+      - run: cd frontend && npm test