Teknium 791f4e94b2 feat(slack): multi-workspace support via OAuth token file (#3903) ...

Salvaged from PR #2033 by yoannes. Adds multi-workspace Slack support
so a single Hermes instance can serve multiple Slack workspaces after
OAuth installs.

Changes:
- Support comma-separated bot tokens in SLACK_BOT_TOKEN env var
- Load additional OAuth-persisted tokens from HERMES_HOME/slack_tokens.json
- Route all Slack API calls through workspace-aware _get_client(chat_id)
  instead of always using the primary app client
- Track channel → workspace mapping from incoming events
- Per-workspace bot_user_id for correct mention detection
- Workspace-aware file downloads (correct auth token per workspace)

Backward compatible: single-token setups work identically.

Token file format (slack_tokens.json):
  {"T12345": {"token": "xoxb-...", "team_name": "My Workspace"}}

Fixed from original PR:
- Uses get_hermes_home() instead of hardcoded ~/.hermes/ path

Co-authored-by: yoannes <yoannes@users.noreply.github.com>

2026-03-30 01:51:48 -07:00

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