Initial import from garrytan/gstack@026751e (main snapshot via local relay)

Source: https://github.com/garrytan/gstack/commit/026751e

scripts/resolvers/preamble/generate-vendoring-deprecation.ts

@@ -0,0 +1,29 @@
+import type { TemplateContext } from '../types';
+
+export function generateVendoringDeprecation(ctx: TemplateContext): string {
+  return `If \`VENDORED_GSTACK\` is \`yes\`, warn once via AskUserQuestion unless \`~/.gstack/.vendoring-warned-$SLUG\` exists:
+
+> This project has gstack vendored in \`.claude/skills/gstack/\`. Vendoring is deprecated.
+> Migrate to team mode?
+
+Options:
+- A) Yes, migrate to team mode now
+- B) No, I'll handle it myself
+
+If A:
+1. Run \`git rm -r .claude/skills/gstack/\`
+2. Run \`echo '.claude/skills/gstack/' >> .gitignore\`
+3. Run \`${ctx.paths.binDir}/gstack-team-init required\` (or \`optional\`)
+4. Run \`git add .claude/ .gitignore CLAUDE.md && git commit -m "chore: migrate gstack from vendored to team mode"\`
+5. Tell the user: "Done. Each developer now runs: \`cd ~/.claude/skills/gstack && ./setup --team\`"
+
+If B: say "OK, you're on your own to keep the vendored copy up to date."
+
+Always run (regardless of choice):
+\`\`\`bash
+eval "$(${ctx.paths.binDir}/gstack-slug 2>/dev/null)" 2>/dev/null || true
+touch ~/.gstack/.vendoring-warned-\${SLUG:-unknown}
+\`\`\`
+
+If marker exists, skip.`;
+}