Function fetchTeamMemoryHashes

src/services/teamMemorySync/index.ts:315–385

* Fetch only per-key checksums + metadata (no entry bodies). * Used for cheap serverChecksums refresh during 412 conflict resolution — avoids * downloading ~300KB of content just to learn which keys changed. * Requires anthropic/anthropic#283027 deployed; on failure the caller fails the * push a

(
  state: SyncState,
  repoSlug: string,
)

 * push and the watcher retries on the next edit.
 */
async function fetchTeamMemoryHashes(
  state: SyncState,
  repoSlug: string,
): Promise<TeamMemoryHashesResult> {
  try {
    await checkAndRefreshOAuthTokenIfNeeded()
    const auth = getAuthHeaders()
    if (auth.error) {
      return { success: false, error: auth.error, errorType: 'auth' }
    }

    const endpoint = getTeamMemorySyncEndpoint(repoSlug) + '&view=hashes'
    const response = await axios.get(endpoint, {
      headers: auth.headers,
      timeout: TEAM_MEMORY_SYNC_TIMEOUT_MS,
      validateStatus: status => status === 200 || status === 404,
    })

    if (response.status === 404) {
      state.lastKnownChecksum = null
      return { success: true, entryChecksums: {} }
    }

    const checksum =
      response.data?.checksum || response.headers['etag']?.replace(/^"|"$/g, '')
    const entryChecksums = response.data?.entryChecksums

    // Requires anthropic/anthropic#283027. If entryChecksums is missing,
    // treat as a probe failure — caller fails the push; watcher retries.
    if (!entryChecksums || typeof entryChecksums !== 'object') {
      return {
        success: false,
        error:
          'Server did not return entryChecksums (?view=hashes unsupported)',
        errorType: 'parse',
      }
    }

    if (checksum) {
      state.lastKnownChecksum = checksum
    }
    return {
      success: true,
      version: response.data?.version,
      checksum,
      entryChecksums,
    }
  } catch (error) {
    const { kind, status, message } = classifyAxiosError(error)
    switch (kind) {
      case 'auth':
        return {
          success: false,
          error: 'Not authorized',
          errorType: 'auth',
          httpStatus: status,
        }
      case 'timeout':