feat: proper windows support

tests/binary_test/verify_configured_launcher_shape.sh

@@ -1,16 +1,23 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-binary="$1"
+launcher="$1"
 
-grep -Fq -- 'install_metadata="${runfiles_dir}/_main/' "${binary}"
-grep -Fq -- 'node_modules/.rules_bun/install.json' "${binary}"
-grep -Fq -- "--smol" "${binary}"
-grep -Fq -- "--conditions" "${binary}"
-grep -Fq -- "'browser'" "${binary}"
-grep -Fq -- "'development'" "${binary}"
-grep -Fq -- "--install" "${binary}"
-grep -Fq -- "'force'" "${binary}"
-grep -Fq -- "'--hot'" "${binary}"
-grep -Fq -- "'--console-depth'" "${binary}"
-grep -Fq -- "'4'" "${binary}"
+python3 - "${launcher}" <<'PY'
+import json
+import pathlib
+import sys
+
+path = pathlib.Path(sys.argv[1])
+if path.suffix.lower() == ".cmd":
+    path = pathlib.Path(str(path)[:-4])
+spec = json.loads(pathlib.Path(f"{path}.launcher.json").read_text())
+argv = spec["argv"]
+
+assert spec["install_metadata_short_path"].endswith("node_modules/.rules_bun/install.json"), spec
+assert spec["inherit_host_path"] is True, spec
+assert spec["node_modules_roots"], spec
+assert all(not root.startswith("../") for root in spec["node_modules_roots"]), spec
+for value in ["--smol", "--conditions", "browser", "development", "--install", "force", "--hot", "--console-depth", "4"]:
+    assert value in argv, (value, spec)
+PY