[Takaros999]

This PR preserves bridge error details in SDK failure results.

• Recognize challenge_failed and automatically decode optional, generic ErrorReason metadata; unknown strings become unknown, while missing/null reasons stay absent.
• Preserve reasons through top-level and v4 bridge errors, polling/completion results, React hooks/widget callbacks, and Swift/Kotlin wrappers. No public parsing helper is added.
• Keep known legacy reasons and add decoding examples, malformed-payload coverage, and Rust/TypeScript conformance checks.

Compatibility

Rust failures now use Status::Failed { error, reason }. Swift .failed/.failure cases gain an optional associated reason, so switch patterns must match both values. Kotlin failure records gain a nullable reason. Existing JavaScript callback arguments retain their positions; the widget reason is the optional third argument.

Validation

• JavaScript build, type checks, tests, and formatting passed.
• Rust tests: 167 passed; Clippy passed with all targets/features.
• Rust/TypeScript conformance: 697 passed, plus HTTP bridge transcripts.
• Host Swift tests: 15 passed; Kotlin SDK unit tests: 17 passed.

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Project	Deployment	Actions	Updated
idkit-js-example	Ready	Preview	Oct 28, 2026 10:58pm UTC

[chatgpt-codex-connector]

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Review	Status	Commit	Review trigger
📝 Code Review	⚠️ Failed 2026-10-28T23:09:49.843165Z We couldn’t complete this review. Comment @codex review to try again.	19938e4	Manual request
🔒 Security Review	⚠️ Failed 2026-10-28T23:09:50.229151Z We couldn’t complete this review. Comment @codex security review to try again.	19938e4	Manual request

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