pub async fn check_auth(
auth: &Option<Arc<AuthState>>,
headers: &HeaderMap,
) -> Result<Option<String>, StatusCode>Expand description
Check authentication for a protected endpoint.
Returns Ok(None) if auth is not configured (open mode), or if a valid
token is present without needing cookie renewal. Returns Ok(Some(cookie))
if auth succeeded and the caller should include the given Set-Cookie
header value in the response (rolling session). Returns Err(StatusCode)
if auth is configured but no valid token is found.
Token sources (in order):
Authorization: Bearer <token>header (raw JWT — validated directly)trustee_token=<session_id>cookie (looked up in WebSessionManager, auto-refreshed if near expiry)
Dev mode tokens use the format dev:email:name:username.