Feature: Add simple one-line progress display mode

[ahogappa]

What

Add a simple one-line progress display mode as an alternative to the current tree-based display.

Goal

Users can choose a minimal progress display that shows execution status in a single updating line, suitable for scenarios where the detailed tree view is too verbose.

The display should show:

• Current progress (completed/total tasks)
• Currently running task name(s)
• Final status (success or failure with task name)

Approach

• Add a new display mode selectable via environment variable (TASKI_PROGRESS_MODE=simple) or API (Taski.progress_mode = :simple)
• Implement a new progress display class that follows the same interface as the existing tree display
• Keep tree mode as the default for backward compatibility

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🔗 Similar Issues

Related Issues

• Feature: Add group block for organizing progress display messages #96
• Refactor: Unify TreeProgressDisplay and StaticTreeRenderer #59

🔗 Related PRs

#57 - feat: display task output inline in progress tree [merged]
#72 - refactor: centralize tree building logic in TreeProgressDisplay [merged]
#75 - fix: pass ExecutionContext to TaskWrapper and fix progress display garbage [merged]
#107 - feat: improve progress display with alternate screen buffer [merged]
#111 - refactor: consolidate duplicated execution code patterns [closed]

👤 Suggested Assignees

• ahogappa

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