ProjectOpenSea / opensea-js / 21042010524

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fix(api): cap retry-after at 5 minutes and improve test coverage (#1870)

- Add MAX_RETRY_AFTER_SECONDS (300s) cap to prevent excessively long waits
  from buggy or malicious servers
- Fix _parseRetryAfter to properly reject negative and zero values
- Add comprehensive edge case tests for retry-after parsing:
  - Numeric cap, HTTP-date cap, invalid strings, negative/zero values, whitespace
- Add missing test coverage for chain utilities:
  - usesAlternateProtocol helper
  - getNativeWrapTokenAddress function
  - Monad chain in getChainId tests
- Normalize rate limit log messages to always use seconds (was mixing ms/seconds)

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

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