- bars use a fixed 14px column width, so sparse histories no longer
stretch and dense histories scroll horizontally instead of compressing
- the chart sticks to the newest bars unless the user scrolls away
- a turn tick row under the bars groups consecutive requests of the same
T into one labeled range (T1 spans its bars with a connector line)
- test-client now renders the view tree with a stateful fake React and
asserts bar count, scroll container, and turn-range geometry
bowenliang123
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