Release 3.0.0-beta.3

• New Features
• Added package-manager selection before scaffold generation and threaded the selection through the full create flow (huijiro).
• Added AI Gateway SDK and CLI support (#1451) — Jeff Haynie.
• Added a standalone Agentuity Pi plugin package (#1453) — Jeff Haynie.
• Added Coder workspace prompt modes and custom skills (#1448) — Bobby Christopher.
• Breaking Changes
• Removed the React Router scaffold option from create (huijiro).
• Removed the vite-react scaffold template (huijiro).
• Migrated Pi packages to the Earendil scope (#1457) — Jeff Haynie.
• Improvements
• Updated package-manager scaffolds to use the Hono Node template (huijiro).
• Updated Hono scaffolds to render with JSX (huijiro).
• Configured SSR start scripts for Nuxt, SvelteKit, and Astro scaffolds (huijiro).
• Improved runtime detection by inferring launch.json runtime from the start script and lockfile, and ensuring it matches the actual launch command (huijiro).
• Updated AI prompt LLM and intro for v3, and selected npx vs bunx based on runtime (huijiro).
• Hid internal CLI flags from --help output (huijiro).
• Removed Workbench from the DevMode banner (#1450) — Gabriel Rodrigues Campos.
• Bug Fixes
• Ran CLI asset copy directly during build to fix packaging flow (huijiro).
• Fixed the Next.js adapter to handle monorepo standalone output (huijiro).
• Fixed TanStack Start packaging and preserved framework output directories (huijiro).
• Fixed sandbox npm tarballs to publish dist/ (huijiro).
• Restored public agentuity.json schema validation (#1456) — Parteek Singh.
• Fixed migration output by translating .pick(['a']) / .omit(['a']) to Zod 4 mask form (huijiro).
• Fixed template Hono RPC response inference (#1449) — Parteek Singh.