Canvas frame height 600 → 760 px and tank rectangle height 520 → 680 px
so the visual fills the card aspect (taller than wide). Floor footer
moves to y=702 (was 542) to stay just below the new tank floor.
In-canvas bottom readouts (level / volume / fill mini-stats) removed —
they were redundant with the Status row Level stat, the bar gauge, and
the Level/Volume timeseries, and were getting clipped below the card's
visible area anyway. The basin canvas now shows only basin-structure
information (geometry, zones, thresholds).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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