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Dario LipicarandClaude Opus 4.8
ef24bd70d9
When a provider rejects a call for a stale/unrecognized token it now returns a structured "unauthorized" sentinel (logos_rpc_status.h) instead of a bare QVariant(). LogosAPIClient detects it below the typed wrapper, drops the cached token, re-runs capability_module.requestModule and retries the call once — closing the gap where a stale token was reused forever (the consumer-latched-dead failure mode) and lazily recovering the common provider-reload case. The return VALUE is the only provider->consumer channel available on every transport (qt_local/qt_remote/plain) without an ABI break, since the QtRO dispatch slot returns a single QVariant — hence a value sentinel. Backward compatible: - OLD consumers convert the sentinel identically to QVariant() for every scalar/string/LogosResult return, so they keep seeing today's empty/failed result. - OLD providers return bare QVariant(); a NEW consumer never matches the sentinel and so never re-exchanges against them. The retry is bounded to one attempt and fires ONLY on the explicit sentinel (never a legitimately-empty result), so no loops and no misfire. Downstream note: logos-qt-sdk's test_auth_token_enforcement.cpp asserts !isValid() on unauthorized calls; those become isUnauthorizedSentinel() when it re-pins (the security property — no provider dispatch — is unchanged). Tests: tests/protocol/test_token_reexchange.cpp covers provider-side emission, sync/async re-exchange+retry, bounded retry (no loop), the false-positive guard (a legit empty return must not re-exchange), and old-consumer decode. Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>