feat(tui): ricing-first dashboard with fzf process finder

[dev-dami]

Summary

• Hybrid TUI layout: compact dashboard overview (3x2 grid) with Enter to zoom into full-screen detail views
• fzf-style process finder: fuzzy search powered by nucleo-matcher with / to search, j/k to navigate, highlighted selection
• Ricing-first design: terminal-native ANSI 16 colors (auto-inherits user's colorscheme), Nerd Font icons, 16-color palette bar in footer
• ThemeMode config: terminal (default, adapts to pywal/Catppuccin/Dracula/etc) or custom (hex color overrides)
• 60-sample sparkline history, Unicode gauge bars, improved key-value alignment with → separators

Keybindings

Key	Dashboard	Zoom-In	Process Finder
Tab/←→	Switch module	—	—
Enter	Zoom into module	—	—
/ or f	—	—	Activate search
j/k	—	—	Navigate list
Esc	Quit	Back to dashboard	Clear search / back
q	Quit	Back to dashboard	Back to dashboard

Test plan

• cargo run -- tui — verify dashboard renders with Nerd Font icons and ANSI colors
• Tab through modules, verify color palette bar in footer
• Enter on CPU/Memory/Disk — verify gauge + sparkline + details in zoom view
• Enter on Process — verify fzf finder opens with search bar
• Type to fuzzy-filter processes, j/k to scroll, Esc to clear/back
• cargo run -- print -m cpu — verify Nerd Font icons in CLI output
• Test with different terminal colorschemes to verify ANSI adaptation

Summary by CodeRabbit

• New Features
  • Interactive dashboard with grid layout and modular tiles
  • Fuzzy search process finder with fzf-style filtering and navigation
  • Theme customization options (Terminal/Custom modes)
  • Nerd Font icon support in module headers and dashboard
  • ANSI color palette support with theme-aware color mapping
  • Module zoom-in view with gauges, history sparklines, and metrics display

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 2e30222d-12bc-44e4-910f-822074356f49

📥 Commits

Reviewing files that changed from the base of the PR and between b8490db and 7e6bc4c.

⛔ Files ignored due to path filters (1)

• Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (5)

• Cargo.toml
• docs/plans/2026-03-08-tui-redesign.md
• src/config/mod.rs
• src/output/mod.rs
• src/tui/mod.rs

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📝 Walkthrough

Walkthrough

This pull request introduces a comprehensive TUI redesign featuring an interactive dashboard with theme customization, a fuzzy process finder powered by nucleo-matcher, ANSI color support, Nerd Font icons, and dual-view navigation (dashboard and zoom-in modes). Configuration types are extended with theme modes and icon toggles, output formatting now includes decorative headers, and the TUI state management adds process filtering and history tracking.

Changes

Cohort / File(s)	Summary
Dependencies Cargo.toml	Added nucleo-matcher dependency (v0.3) for fuzzy matching functionality.
Configuration & Theming src/config/mod.rs	Introduced ThemeMode enum (Terminal/Custom) with deserialization support, added icons toggle and theme_mode field to Config/TuiConfig structs, and added three public color-mapping helpers (ansi_module_color, ansi_chrome_border, ansi_chrome_title).
Output Formatting src/output/mod.rs	Added module_icon utility mapping module names to Unicode icons, refactored format_snapshot to wrap module output with decorative boxed headers containing icons.
TUI Redesign Plan & Implementation docs/plans/2026-03-08-tui-redesign.md, src/tui/mod.rs	Detailed redesign plan and comprehensive implementation: introduced App state with history tracking, ViewMode enum (Dashboard/ZoomIn), ProcessEntry type for fuzzy finder rows, process list refreshing and fuzzy filtering logic, dashboard and module-detail rendering with ANSI colors, full-screen process finder, theme-aware color resolution helpers, and enhanced keybindings for navigation and search.

Sequence Diagram(s)

sequenceDiagram
    actor User
    participant App
    participant ViewMode
    participant ProcessFinder
    participant Engine
    participant Renderer

    User->>App: Trigger interaction (key press)
    App->>ViewMode: Check current view mode
    alt Dashboard view
        ViewMode->>Renderer: render dashboard (all modules)
        Renderer-->>User: Display dashboard tiles
    else ZoomIn view
        ViewMode->>App: Get zoomed module (e.g., "process")
        App->>ProcessFinder: Activate process finder
        User->>ProcessFinder: Enter search query
        ProcessFinder->>Engine: Apply fuzzy filter (nucleo-matcher)
        Engine-->>ProcessFinder: Filtered process list
        ProcessFinder->>Renderer: Render process entries
        Renderer-->>User: Display fuzzy-matched processes
    end
    User->>App: Navigate or zoom out
    App->>ViewMode: Transition to Dashboard

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Estimated code review effort

🎯 4 (Complex) | ⏱️ ~60 minutes

Possibly related PRs

• feat: implement interactive TUI dashboard with ratatui #5: Directly modifies src/tui/mod.rs with public App type and App::new constructor along with interactive run_tui flow implementation, forming the core TUI architecture that this redesign extends.

Poem

🐰 Fuzzy whiskers twitch with glee,
Fzf-style finder, colors bright and free,
Nerd Fonts sparkle, icons dance,
Zoom and zoom in sweet romance,
Dashboard tiles in perfect array,
A TUI redesign, hip-hip-hooray! 🎉

✨ Finishing Touches

• 📝 Generate docstrings (stacked PR)
• 📝 Generate docstrings (commit on current branch)

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feat/tui-redesign

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	nucleo-matcher@​0.3.1

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