chore: import upstream snapshot with attribution

scripts/version-sync.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+# Syncs the version from package.json into all workspace Cargo.toml files,
+# updates Cargo.lock, and regenerates skills.
+# Used by changesets/action as a custom version command.
+set -euo pipefail
+
+# Run the standard changeset version command first
+pnpm changeset version
+
+# Read the new version from package.json
+VERSION=$(node -p "require('./package.json').version")
+
+# Update version in all workspace crate Cargo.toml files
+# Uses awk to only change the version under [package], not other sections
+for cargo_toml in crates/*/Cargo.toml; do
+  tmp=$(mktemp)
+  awk -v ver="$VERSION" '
+    /^\[package\]/ { in_pkg=1 }
+    /^\[/ && !/^\[package\]/ { in_pkg=0 }
+    in_pkg && /^version = / { $0 = "version = \"" ver "\"" }
+    { print }
+  ' "$cargo_toml" > "$tmp" && mv "$tmp" "$cargo_toml"
+done
+
+# Update inter-crate dependency versions (e.g. google-workspace = { version = "X.Y.Z", path = "..." })
+sed -i.bak -E "s/(google-workspace = \{ version = \")[^\"]+/\1${VERSION}/" crates/google-workspace-cli/Cargo.toml
+rm -f crates/google-workspace-cli/Cargo.toml.bak
+
+# Update npm installer package.json version
+node -e "
+  const pkg = require('./npm/package.json');
+  pkg.version = '${VERSION}';
+  require('fs').writeFileSync('./npm/package.json', JSON.stringify(pkg, null, 2) + '\n');
+"
+
+# Update Cargo.lock to match
+cargo generate-lockfile
+
+# Update flake.lock if nix is available
+if command -v nix > /dev/null 2>&1; then
+  nix flake lock --update-input nixpkgs
+fi
+
+# Regenerate skills so metadata.version tracks the CLI version
+cargo run -- generate-skills --output-dir skills
+
+# Stage the changed files so changesets/action commits them
+git add crates/*/Cargo.toml Cargo.lock flake.nix flake.lock skills/ npm/package.json
+