Greptile Summary

This PR removes duplicate imports of listSlackDirectoryGroupsFromConfig and listSlackDirectoryPeersFromConfig from extensions/slack/src/channel.ts. After merging #49930, these two functions were being imported twice — once from ./directory-config.js (the correct canonical source) and once from ./runtime-api.js (the duplicate). The duplicate caused a parse failure that prevented Slack tests from running. The fix correctly retains only the ./directory-config.js import path.

• Removes two redundant named imports from the ./runtime-api.js import block in channel.ts
• No functional logic is changed; this is purely a cleanup of a duplicate-import artifact introduced by a prior merge

Confidence Score: 5/5

• This PR is safe to merge — it is a minimal, targeted removal of duplicate import lines with no logic changes.
• The change is a two-line removal of duplicate named imports that caused a parse failure. The correct imports from ./directory-config.js are retained, the ./runtime-api.js import block loses only the redundant entries, and no runtime behavior is affected. The fix is trivially verifiable by inspection.
• No files require special attention.

_{Last reviewed commit: "Slack: remove duplic..."}