* fix(overview): name each quota window in provider rows

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* docs(overview): fit three labelled rows in README captures

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* docs(overview): refresh README overview, sessions and tour captures

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(overview): keep quota caption truncation lint-clean and tested

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(overview): keep Cursor's included plan and drawn reading order

Address review findings: select Overview meters in PanelDisplay with a
direct test, keep Cursor's included plan after its total quota runs out,
describe the detail line before the quotas, share quotaDescription with
the panel tooltip, drop static checks already covered by QtTests, and
reconcile TODO.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>