Feature: Update kdm cache command to be interactive

[utkarsh232005]

🎯 Goal

Convert the kdm cache command from static list/get/purge CLI operations into an interactive cache browser where users can browse, preview, and manage cached AI explanations.

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📌 Current Behavior

kdm cache manages locally cached AI explanations to save tokens and avoid duplicate network requests.

Subcommands:

Subcommand	Description
kdm cache list	List all cached explanation keys
kdm cache get <key>	Retrieve and print a cached explanation
kdm cache remove <key>	Delete a specific cache entry
kdm cache purge	Delete all cached explanations

Example usage:

kdm cache list
kdm cache purge

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🚀 Proposed Interactive Dashboard

Layout

  Cache Browser                              3 entries
  ──────────────────────────────────────────────────────

  > Run-001    openai/gpt-4o       2 hours ago
    Run-002    ollama/llama3.1     1 day ago
    Run-003    openai/gpt-4o       3 days ago

  ──────────────────────────────────────────────────────
  ENTER:View  DELETE:Remove  P:Purge All  Q:Quit

Preview Pane (press Enter)

  ┌─ Run-001 ─────────────────────────────────────────┐
  │                                                   │
  │  Cause:                                           │
  │  Container exceeded memory limit of 256Mi.        │
  │                                                   │
  │  Fix:                                             │
  │  kubectl edit deployment app                      │
  │  Increase memory: 256Mi -> 512Mi                  │
  │                                                   │
  │  [ESC] Close                                      │
  └───────────────────────────────────────────────────┘

Purge Confirmation (press P)

  ┌─────────────────────────────────┐
  │  Delete all cached entries?     │
  │                                 │
  │  [Y] Yes        [N] No         │
  └─────────────────────────────────┘

User Flow

1. User runs kdm cache → list of cached entries loads.
2. Use ↑ / ↓ to select a cache entry.
3. Press Enter to preview the cached explanation in an overlay.
4. Press Delete or d to remove the selected entry.
5. Press p to purge all — confirmation dialog appears.

Keyboard Shortcuts

Key	Action
↑ / ↓	Navigate cache entries
Enter	Preview cached explanation
Delete / d	Remove selected entry
p	Purge all (with confirmation)
Esc	Close overlay
Q	Quit

Recommended Libraries

Component	Library
List	ink-select-input
Confirmation	Custom confirm modal component
Colors	chalk

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📋 Contribution Workflow

1. Fork the repo and create a feature branch (e.g., feature/interactive-kdm-cache).
2. Implement the interactive TUI for kdm cache using the layout and flow described above.
3. Submit a PR explicitly linked to this issue (e.g., Closes #141).
4. 📸 Include a screenshot or recording of the implemented UI in your PR to verify the new dashboard experience.