## Problem
On backhaul devices, the Y axis auto-scale includes capacity reference line values (e.g. 100 Mbps) alongside actual traffic (e.g. 5 Mbps). This makes the traffic data appear as a flat line near zero — effectively invisible.
## Fix
Exclude datasets with `Capacity` prefix from the max-value calculation used for symmetric Y axis scaling. The capacity dashed lines still render and clip at the chart edges as a visual ceiling reference.
## 1-line change
```js
if (dataset.label?.startsWith("Capacity")) return
```
Reviewed-on: graham/towerops-web#140
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| types | ||
| app.ts | ||
| chart_dataset_config.mjs | ||
| cookie_consent.js | ||
| device_list_reorder.ts | ||