The platform's GET /workspaces/:id/transcript proxy was constructing the
outbound request without an Authorization header. The workspace's /transcript
endpoint (hardened in #287/#328) fails-closed when the header is absent,
so every transcript call in production returned 401 from the workspace.
Fix: after WorkspaceAuth validates the incoming bearer token, the handler
now forwards it verbatim via req.Header.Set("Authorization", ...).
Forwarding is safe — the token has already been validated by the middleware.
Tests:
- TestTranscript_ForwardsAuthHeader: was t.Skip'd as a bug marker; now
active. Verifies the Authorization header reaches the workspace stub.
- TestTranscript_NoAuthHeader_PassesThrough: new. Verifies that a missing
header produces no synthetic Authorization on the upstream call, and the
workspace 401 is faithfully relayed.
Identified by QA audit 2026-04-16.
Co-authored-by: QA Engineer <qa-engineer@molecule-ai.internal>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
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