fix(086): fetch tags before reporting installed version

install.sh now runs git fetch --tags before git describe so it finds
release-please tags created on GitHub. Without this, local clones
that haven't fetched recently report stale versions like v4.0.0.

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

Author: davidmatousek

scripts/install.sh

@@ -189,6 +189,8 @@ done < <(parse_manifest "$MANIFEST_FILE")
 
 INSTALLED_VERSION="untagged"
 if command -v git >/dev/null 2>&1 && [ -d "${SOURCE_DIR}/.git" ]; then
+  # Fetch tags so git describe finds release-please tags created on GitHub
+  git -C "$SOURCE_DIR" fetch --tags --quiet 2>/dev/null || true
   INSTALLED_VERSION="$(git -C "$SOURCE_DIR" describe --tags --always 2>/dev/null || echo "untagged")"
 fi