Add OSHA Form 301 and Osha page components

- Implemented Form301 component for displaying OSHA Form 301 equivalent, including employee and case information.
- Created Osha component to manage OSHA recordkeeping, including tabs for 300 Log, 300A Summary, Hours & rates, and Submit to OSHA.
- Added functionality for printing and downloading CSV files for OSHA submissions.
- Integrated loading and error handling states for data fetching.

src/components/charts/scale.ts

@@ -0,0 +1,12 @@
+/** Round axis ticks (0, 5, 10… / 0, 0.5, 1…) covering 0..max, about `count` of them. */
+export function niceTicks(max: number, count = 4): number[] {
+  if (!(max > 0)) return [0, 1]
+  const raw = max / count
+  const magnitude = 10 ** Math.floor(Math.log10(raw))
+  const step = [1, 2, 2.5, 5, 10].map((m) => m * magnitude).find((s) => s >= raw) ?? raw
+  const ticks: number[] = []
+  for (let v = 0; v <= max + step * 0.999; v += step) ticks.push(Math.round(v * 1000) / 1000)
+  return ticks
+}
+
+export const formatNumber = (value: number) => value.toLocaleString('en-US', { maximumFractionDigits: 2 })