Fix silent credential injection failures by returning 502 on error#13
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Fix silent credential injection failures by returning 502 on error#13
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When GCloudInjector.Inject() failed (token refresh, init, invalid token), InjectCredentials() still logged CREDENTIAL_INJECT and forwarded the request with the dummy "paude-proxy-managed" token, causing confusing 401s from GCP. Now Inject() returns bool, InjectCredentials() returns (matched, injected), and the proxy returns 502 Bad Gateway when injection fails instead of forwarding with dummy credentials. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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When GCloudInjector.Inject() failed (token refresh, init, invalid token),
InjectCredentials() still logged CREDENTIAL_INJECT and forwarded the request
with the dummy "paude-proxy-managed" token, causing confusing 401s from GCP.
Now Inject() returns bool, InjectCredentials() returns (matched, injected),
and the proxy returns 502 Bad Gateway when injection fails instead of
forwarding with dummy credentials.
Co-Authored-By: Claude Opus 4.6 noreply@anthropic.com