fix: prefer env var over keychain for API token resolution#118
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GetAPIToken() now checks SLACK_API_TOKEN env var before keychain, matching GetUserToken() behavior. This allows automation tools to inject their own tokens via env vars without conflicting with locally stored keychain credentials.
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Summary
GetAPIToken()now checksSLACK_API_TOKENenv var before keychain, matching howGetUserToken()already worksGetTokenSource()updated to reflect the same precedenceWhy
Automation tools (like daemons) inject tokens via
SLACK_API_TOKENenv var, butGetAPIToken()checked keychain first and never reached the env var fallback. This made it impossible for subprocess-based tools to use their own bot tokens when the user also had a personal token stored in keychain.GetUserToken()already had the correct precedence (env var first), so this aligns the two functions.Test plan
SLACK_API_TOKEN=xoxb-test slck config showshows "from environment variable" for bot tokenslck config showstill shows keychain tokenslck whoamiworks with both env var and keychain tokens