On a 429 the opencode executor now records the refused proxy's key in the request-local tried-set, exactly like the 403/451, 5xx, stall and network arms already did — so a second account sharing that same proxy is not dialed and refused again before the loop reaches a genuinely different route (direct, or another proxy).
Reviewed against the tip that already carries your 38 merges from this evening: this is additive to the flags that landed today (`OPENCODE_RATE_LIMITED_429_EARLY_STOP`, `PROXY_SKIP_RECENTLY_FAILED`, `OPENCODE_USER_BLOCKED_ROTATION`, `OPENCODE_TRANSIENT_FAILOVER_BACKOFF`) and does not double-skip when combined with them; direct accounts have a null proxy key and correctly record nothing.
Validated as a combined board first (this PR merged with the 11 siblings of the same batch on the release tip): eslint on every changed file with the suppressions file, typecheck:core, check:open-sse-typecheck, complexity, cognitive-complexity, changelog-integrity, i18n new-key coverage, docs-sync, migration-numbering, provider-consistency and a duplicate-identifier audit all green, plus 275 passing / 0 failing focused node:test cases across the 28 test files the batch touches. Then re-validated alone on the fresh tip before this merge: conflicts re-resolved, file sizes rebaselined for this PR's own growth, eslint and this PR's focused tests re-run.
Thanks @maxmad64bis!
