Feature: Update kdm serve command to be interactive

[utkarsh232005]

🎯 Goal

Convert the kdm serve command from a headless daemon start into an interactive server control dashboard with live request logging, server controls, and resource metrics.

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📌 Current Behavior

kdm serve starts the KDM server daemon in either REST API mode or JSON-RPC Model Context Protocol (MCP) mode.

Options:

Flag	Description
-p, --port <port>	HTTP server port (default: 8080)
--metrics-port <port>	Metrics server port
-b, --backend <backend>	Default active AI backend
-f, --filter <filter>	Default analyzer filter
--http	Force HTTP mode (default)
--mcp	Start in MCP mode (JSON-RPC stdio)

Example usage:

kdm serve --port 8080
kdm serve --mcp

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🚀 Proposed Interactive Dashboard

Layout

  KDM Server Dashboard                     ● RUNNING
  ──────────────────────────────────────────────────────

  Host:  localhost          CPU:   20%
  Port:  8080               RAM:   150MB
  Mode:  HTTP               Uptime: 2h 15m

  ──────────────────────────────────────────────────────
  Request Log
  ──────────────────────────────────────────────────────

  12:01:02  GET   /health         200   12ms
  12:01:05  POST  /analyze        200   1.2s
  12:02:10  POST  /rpc            200   340ms
  12:03:01  GET   /health         200   8ms

  ──────────────────────────────────────────────────────
  [S] Stop/Start  [R] Restart  [P] Change Port  [C] Clear Log  [Q] Quit

User Flow

1. User runs kdm serve → server starts, dashboard appears with live metrics.
2. Incoming HTTP requests scroll in the request log panel in real time.
3. Press s to stop/start the server (status toggles between ● RUNNING and ● STOPPED).
4. Press r to restart the server.
5. Press p to open an inline input to change the port:

  Enter new port: 9000

6. Press c to clear the request log.
7. Press Q to quit and stop the server.

Keyboard Shortcuts

Key	Action
s	Toggle server start/stop
r	Restart server
p	Change port (inline input)
c	Clear request log
Q	Quit

Recommended Libraries

Component	Library
Gradient header	ink-gradient
Spinner	ink-spinner
Colors	chalk
Port input	ink-text-input

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📋 Contribution Workflow

1. Fork the repo and create a feature branch (e.g., feature/interactive-kdm-serve).
2. Implement the interactive TUI for kdm serve using the layout and flow described above.
3. Submit a PR explicitly linked to this issue (e.g., Closes #144).
4. 📸 Include a screenshot or recording of the implemented UI in your PR to verify the new dashboard experience.