The Matrix channel previously hardcoded `listMatrixAccountIds` to always
return only `DEFAULT_ACCOUNT_ID`, ignoring any accounts configured in
`channels.matrix.accounts`. This prevented running multiple Matrix bot
accounts simultaneously.
Changes:
- Update `listMatrixAccountIds` to read from `channels.matrix.accounts`
config, falling back to `DEFAULT_ACCOUNT_ID` for legacy single-account
configurations
- Add `resolveMatrixConfigForAccount` to resolve config for a specific
account ID, merging account-specific values with top-level defaults
- Update `resolveMatrixAccount` to use account-specific config when
available
- The multi-account config structure (channels.matrix.accounts) was not
defined in the MatrixConfig type, causing TypeScript to not recognize
the field. Added the accounts field to properly type the multi-account
configuration.
- Add stopSharedClientForAccount() to stop only the specific account's
client instead of all clients when an account shuts down
- Wrap dynamic import in try/finally to prevent startup mutex deadlock
if the import fails
- Pass accountId to resolveSharedMatrixClient(), resolveMatrixAuth(),
and createMatrixClient() to ensure the correct account's credentials
are used for outbound messages
- Add accountId parameter to resolveMediaMaxBytes to check account-specific
config before falling back to top-level config
- Maintain backward compatibility with existing single-account setups
This follows the same pattern already used by the WhatsApp channel for
multi-account support.
Fixes#3165Fixes#3085
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
