BREAKING(cache/unstable): refactor TtlCache

[tomas-zijdemans]

Summary

Preparatory cleanup for the sliding expiration feature (#7046). Split out per reviewer feedback.

• set() signature: replace positional ttl parameter with an options object ({ ttl?: number })
• Validation: constructor and set() now throw RangeError on negative, NaN, or Infinity TTL values
• onEject optional: no longer requires a callback; defaults to undefined instead of a no-op
• delete() ordering: onEject fires after the entry is removed from the map, so callbacks see a consistent cache state
• clear() calls onEject: invokes the callback for every entry (swallows intermediate errors, re-throws the first)
• Minor guards: delete() short-circuits for non-existent keys; clearTimeout guarded against redundant calls

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.38%. Comparing base (d2fb2d6) to head (9d8e309).
⚠️ Report is 11 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7065   +/-   ##
=======================================
  Coverage   94.38%   94.38%           
=======================================
  Files         628      628           
  Lines       50178    50200   +22     
  Branches     8840     8851   +11     
=======================================
+ Hits        47360    47383   +23     
  Misses       2251     2251           
+ Partials      567      566    -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.