Function extractShotCountFromMessages

src/utils/stats.ts:940–965

* Extract the shot count from PR attribution text in a `gh pr create` Bash call. * The attribution format is: "N-shotted by model-name" * Returns the shot count, or null if not found.

(
  messages: TranscriptMessage[],
)

 * Returns the shot count, or null if not found.
 */
function extractShotCountFromMessages(
  messages: TranscriptMessage[],
): number | null {
  for (const m of messages) {
    if (m.type !== 'assistant') continue
    const content = m.message?.content
    if (!Array.isArray(content)) continue
    for (const block of content) {
      if (
        block.type !== 'tool_use' ||
        !SHELL_TOOL_NAMES.includes(block.name) ||
        typeof block.input !== 'object' ||
        block.input === null ||
        !('command' in block.input) ||
        typeof block.input.command !== 'string'
      ) {
        continue
      }
      const match = SHOT_COUNT_REGEX.exec(block.input.command)
      if (match) {
        return parseInt(match[1]!, 10)
      }
    }
  }
  return null
}

// Transcript message types — must match isTranscriptMessage() in sessionStorage.ts.
// The canonical dateKey (see processSessionFiles) reads mainMessages[0].timestamp,