The grip's handlers write #logbody's inline height, but the CSS said
flex:1 — inside the column-flex #logpanel the flex algorithm sized the
element from basis 0% + grow and never consulted the height property,
so dragging did nothing. Worse, mouseup persisted a re-read
offsetHeight (the flex-computed value), overwriting the remembered
size with the status quo on every attempt.
Re-couple the two: #logbody becomes flex:none so the written height is
authoritative again, with max-height:60vh guarding overflow. The
handlers track the clamped height they compute and mouseup persists
that value; the load-time restore runs through the same clamp and
writes the same property.
The drawer grip writes width on the position:fixed #drawer itself, so
no flex competes there — covered by a non-regression test alongside
the source-level invariants in tests/test_log_resize.py.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
