Motivation

• Provide a runnable, self-contained React component that wire-ups Firebase auth, Firestore profile/vault sync, and a simple generation flow for MusicShortsPro (v5.2).
• Offer a client-facing UI for credit consumption, top-ups, and media preview that can be dropped into a host app using Tailwind and lucide-react.
• Document deployment, payment integration, and next steps so the component can be validated and hardened for production.

Description

• Added profile/MusicShortsProApp.jsx which initializes Firebase (initializeApp, getAuth, getFirestore), supports anonymous or custom-token sign-in, and listens with onSnapshot to artifacts/{appId}/users/{uid}/profile/stats and the vault collection.
• Implemented generation flow handleAction that enforces credit checks, simulates a handshake delay, deducts credits via updateDoc, and records outputs to the vault via addDoc with Timestamp.now().
• Added UI features including PricingModal, sub-modes (VEO, IMAGE, LYRICS), output preview with screenshot capture (canvas), and client-side top-up or server checkout flow using runtime config (window.__museshorts_runtime).
• Added documentation and helper files: profile/NEXT_STEPS.md, profile/PAYMENT_SYSTEM.md, profile/READY_FOR_USE.md, profile/museshorts-pro-v5.2-fixes.md, and a terminal check script profile/scripts/terminal_env_check.sh to assist onboarding and production hardening.

Testing

• No automated tests were executed as part of this change.

Codex Task