Implement Recent Files feature all phases

Continuing work from thread T-019c7344-1f23-716e-be3f-442b8d29a8a1. When you lack specific information you can use read_thread to get it. @docs/feature/recent-files.md @src/config_paths.rs @src/model/mod.rs @src/update/app.rs @keymap.yaml Other relevant files: src/model/ui.rs, src/commands.rs, src/update/ui.rs, src/view/mod.rs, src/lib.rs * I just released v0.3.18, which included performance improvements for syntax highlighting, modal layout refactoring, and various bug fixes. * I updated the dependency lockfile to resolve security alerts for the bytes and time crates. * I researched undo coalescing thresholds and we decided on a 250ms threshold for grouping consecutive typing edits, though the immediate task is the Recent Files feature. * I am now implementing the Recent Files feature following the design in docs/feature/recent-files.md across all 5 phases. * I need to create src/recent_files.rs with RecentEntry and RecentFiles structs, supporting serde JSON serialization, MRU ordering (max 50 entries), and persistence to ~/.config/token-editor/recent.json. * I will add recent_files_path() to src/config_paths.rs and integrate the RecentFiles state into AppModel in src/model/mod.rs. * I need to hook into file opening logic in src/update/app.rs (AppMsg::FileLoaded, AppMsg::OpenFileDialogResult) and src/model/mod.rs (create_initial_session for CLI opens) to record opened files. * I will implement a new modal for recent files (ModalId::RecentFiles) with a Cmd+E keybinding, following existing modal patterns for navigation and rendering. * I must ensure the workspace root is used for relative path display in the recent files list. * I will follow existing codebase patterns: EditorConfig for persistence, ModalId/ModalState for UI, and the Cmd system for side effects. Load skills: brainstorming Implement the Recent Files feature (all 5 phases) for the Token editor. The feature design is at docs/feature/recent-files.md. Key implementation plan: 1. Create `src/recent_files.rs` with `RecentEntry` and `RecentFiles` structs (serde JSON serialization, max 50 entries, MRU ordering, add/remove/clear/prune_missing methods, load/save to `~/.config/token-editor/recent.json`) 2. Add `recent_files_path()` to `src/config_paths.rs` 3. Add `recent_files: RecentFiles` field to `AppModel` in `src/model/mod.rs`, load in `AppModel::new()` 4. Hook file opens: in `src/update/app.rs` where `AppMsg::FileLoaded` and `AppMsg::OpenFileDialogResult` are handled, call `model.recent_files.add()` and save 5. Also hook in `create_initial_session()` for CLI file opens 6. Add `ModalId::RecentFiles` variant to `src/model/ui.rs`, create `RecentFilesState` struct with filtered entries, navigation 7. Add keybinding `Cmd+E` → open recent files modal in `keymap.yaml` 8. Add `CommandId::RecentFiles` to `src/commands.rs` with command palette entry 9. Handle the modal in `src/update/ui.rs` (or modal handler) for navigation/selection/open 10. Render the modal in `src/view/mod.rs` following existing modal rendering patterns (command palette style) Conventions: Follow existing code patterns (EditorConfig for persistence, ModalId/ModalState for modals, Cmd system for side effects). Use `serde_json` for recent.json (already in Cargo.toml deps? check first, may need to add). The workspace root should be passed to RecentEntry for relative path display. Run `make test && make lint` to verify after implementation.

works well, except a minor issue, recent files should be sorted by last accessed/edited file, so its rapid to swap betwene 2 files you are actively working on, (most recent at top) note however that it should "lag behind" by one so the topmost file is not your curent file, but the last one, so you can ctrl+e press enter to swap between the prev file, then do it again to swap back, this is a core workflow i use all the time, note there is also a weird error symbol (might be file icon or something failing to render) see image

note the nerdfont issue might simply because we dont use a nerdfont variant of jetbrains font, lets try to find the nerdfont version of the font we are using