fix(default): resolve v1 frontend issue regressions

Fix v1 frontend regressions across channel forms, dashboard charts, wallet history, payment callbacks, invite links, API key groups, rate-limit errors, and usage-log scrolling.

Fixes #4715
Fixes #4618
Fixes #4699
Fixes #4651
Fixes #4637
Fixes #4682
Fixes #4691
Fixes #4565
Fixes #4334

web/default/src/features/dashboard/lib/charts.ts

@@ -212,7 +212,7 @@ export function processChartData(
         legends: { visible: true, selectMode: 'single' },
       },
       spec_model_line: {
-        type: 'line',
+        type: 'area',
         data: [{ id: 'lineData', values: [] }],
         xField: 'Time',
         yField: 'Count',