refactor(@angular/cli): implement native stream line-buffering & VT removal for MCP logs

Refactor the process log capturing mechanism in host.ts and devserver.ts to natively line-buffer and sanitize process stdout and stderr streams using Node's native readline `createInterface` API and `util.stripVTControlCharacters`. This ensures all command and devserver logs are cleanly line-split, trimmed, and stripped of VT/ANSI color sequences and carriage returns.