Popup renders after prefix key (SPC, g) and stays visible indefinitely
until sequence completes, Escape cancels, or invalid key clears state.
No timeout — matches Doom Emacs behavior where which-key waits for user.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/claude-agent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
Replace 3 hardcoded keys with full trie-based dispatch. Dispatcher created
in main.rs, handle_action() implements all 18 AppAction variants including
GotoFirst/GotoLast per focus pane, NextTab/PrevTab cycling, and HalfPage scroll.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/claude-agent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
- Add insta dev-dependency for visual regression testing
- Create lib.rs to expose modules for integration tests
- Add snapshot tests for progress_bar, topbar, library, help modal
- Add unit tests for LibraryState navigation
- Move all tests to tests/ directory (proper Rust convention)
- Make build.rs skip proto compilation when protoc unavailable
- Add docs/testing-possible-solutions.md with testing strategies
- Add tonic/prost gRPC client connecting to music-agregator service
- Add config.yaml for configurable server host/port
- Add build.rs for proto compilation from music-agregator
- Update Artist/Album models to match proto with MonitorState enum
- Convert album list from GetArtists response
- Fix album click selection with correct layout offsets
- Improve monitor state icons for better visibility
- Remove all sample/mock data (artists, albums, tracks, queue, history, calendar)
- Delete input module (vim.rs, leader.rs) and related UI (which_key, cmdline)
- Add mouse support: click tabs, click list items, scroll wheel navigation
- Show real disk space via nix::statvfs instead of hardcoded value
- Simplify topbar/statusbar by removing mode display and key hints
- Hide album/track sections when no artist is selected