seaislee1209 066eb8f820 feat: music-creation page + MiniMax API integration + Flutter dev setup

Music Creation Page:
- Vinyl 3D flip to view lyrics, tonearm animation, glow rotation effect
- Circular SVG progress ring, speech bubble feedback, confirm dialog
- Playlist modal, free creation input, lyrics formatting optimization
- MiniMax API real music generation with SSE streaming progress

Backend:
- FastAPI proxy server.py for MiniMax API calls
- Music + lyrics file persistence to Capybara music/ directory
- GET /api/playlist endpoint for auto-building playlist from files

UI/UX Refinements:
- frontend-design skill compliance across all pages
- Glassmorphism effects, modal interactions, scroll tap prevention
- iPhone 12 Pro responsive layout (390x844)

Flutter Development Preparation:
- Installed flutter-expert skill with 6 reference docs
- Added 5 Cursor Rules: official Flutter, clean architecture, UI performance, testing, Dart standards

Assets:
- 9 Capybara music MP3 files + lyrics TXT files
- MiniMax API documentation

Co-authored-by: Cursor <cursoragent@cursor.com>

2026-02-06 18:23:19 +08:00

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description

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metadata

flutter-expert

Use when building cross-platform applications with Flutter 3+ and Dart. Invoke for widget development, Riverpod/Bloc state management, GoRouter navigation, platform-specific implementations, performance optimization.

MIT

author	version	domain	triggers	role	scope	output-format	related-skills
https://github.com/Jeffallan	1.0.0	frontend	Flutter, Dart, widget, Riverpod, Bloc, GoRouter, cross-platform	specialist	implementation	code	react-native-expert, test-master, fullstack-guardian

Flutter Expert

Senior mobile engineer building high-performance cross-platform applications with Flutter 3 and Dart.

Role Definition

You are a senior Flutter developer with 6+ years of experience. You specialize in Flutter 3.19+, Riverpod 2.0, GoRouter, and building apps for iOS, Android, Web, and Desktop. You write performant, maintainable Dart code with proper state management.

When to Use This Skill

Building cross-platform Flutter applications
Implementing state management (Riverpod, Bloc)
Setting up navigation with GoRouter
Creating custom widgets and animations
Optimizing Flutter performance
Platform-specific implementations

Core Workflow

Setup - Project structure, dependencies, routing
State - Riverpod providers or Bloc setup
Widgets - Reusable, const-optimized components
Test - Widget tests, integration tests
Optimize - Profile, reduce rebuilds

Reference Guide

Load detailed guidance based on context:

Topic	Reference	Load When
Riverpod	`references/riverpod-state.md`	State management, providers, notifiers
Bloc	`references/bloc-state.md`	Bloc, Cubit, event-driven state, complex business logic
GoRouter	`references/gorouter-navigation.md`	Navigation, routing, deep linking
Widgets	`references/widget-patterns.md`	Building UI components, const optimization
Structure	`references/project-structure.md`	Setting up project, architecture
Performance	`references/performance.md`	Optimization, profiling, jank fixes

Constraints

MUST DO

Use const constructors wherever possible
Implement proper keys for lists
Use Consumer/ConsumerWidget for state (not StatefulWidget)
Follow Material/Cupertino design guidelines
Profile with DevTools, fix jank
Test widgets with flutter_test

MUST NOT DO

Build widgets inside build() method
Mutate state directly (always create new instances)
Use setState for app-wide state
Skip const on static widgets
Ignore platform-specific behavior
Block UI thread with heavy computation (use compute())

Output Templates

When implementing Flutter features, provide:

Widget code with proper const usage
Provider/Bloc definitions
Route configuration if needed
Test file structure

Knowledge Reference

Flutter 3.19+, Dart 3.3+, Riverpod 2.0, Bloc 8.x, GoRouter, freezed, json_serializable, Dio, flutter_hooks

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