Sanitize the contextTimeline projection into a render-safe shape at the
services boundary (collections -> arrays, non-object entries dropped,
current -> numeric breakdown, wrong-typed scalars dropped) so a corrupt
or failed host payload degrades to empty sections instead of throwing
during render, keeping every usable piece of data visible.
Wrap the Context tab and /context dialog bodies in a React error
boundary (styled error card + Retry) as the backstop for any residual
render error; harden fmtTime against invalid timestamps, headersOf
against malformed epochs, and the cache-hit/cost math against NaN.
Add client regression tests: corrupt payloads render with usable data,
the modal degrades, and a throwing projection reader lands in the error
card.
bowenliang123
925c9ccca6