Function getPhaseSummary

src/utils/queryProfiler.ts:216–293

* Get phase-based summary showing time spent in each major phase

(
  marks: Array<{ name: string; startTime: number }>,
  baselineTime: number,
)

 * Get phase-based summary showing time spent in each major phase
 */
function getPhaseSummary(
  marks: Array<{ name: string; startTime: number }>,
  baselineTime: number,
): string {
  const phases: Array<{ name: string; start: string; end: string }> = [
    {
      name: 'Context loading',
      start: 'query_context_loading_start',
      end: 'query_context_loading_end',
    },
    {
      name: 'Microcompact',
      start: 'query_microcompact_start',
      end: 'query_microcompact_end',
    },
    {
      name: 'Autocompact',
      start: 'query_autocompact_start',
      end: 'query_autocompact_end',
    },
    { name: 'Query setup', start: 'query_setup_start', end: 'query_setup_end' },
    {
      name: 'Tool schemas',
      start: 'query_tool_schema_build_start',
      end: 'query_tool_schema_build_end',
    },
    {
      name: 'Message normalization',
      start: 'query_message_normalization_start',
      end: 'query_message_normalization_end',
    },
    {
      name: 'Client creation',
      start: 'query_client_creation_start',
      end: 'query_client_creation_end',
    },
    {
      name: 'Network TTFB',
      start: 'query_api_request_sent',
      end: 'query_first_chunk_received',
    },
    {
      name: 'Tool execution',
      start: 'query_tool_execution_start',
      end: 'query_tool_execution_end',
    },
  ]

  const markMap = new Map(marks.map(m => [m.name, m.startTime - baselineTime]))

  const lines: string[] = []
  lines.push('')
  lines.push('PHASE BREAKDOWN:')

  for (const phase of phases) {
    const startTime = markMap.get(phase.start)
    const endTime = markMap.get(phase.end)