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.test.ts

@@ -0,0 +1,11 @@
+import { describe, expect, it } from 'vitest'
+import { niceTicks } from './scale'
+
+describe('niceTicks', () => {
+  it('produces round steps that cover the maximum', () => {
+    expect(niceTicks(7)).toEqual([0, 2, 4, 6, 8])
+    expect(niceTicks(23)).toEqual([0, 10, 20, 30])
+    expect(niceTicks(1.3)).toEqual([0, 0.5, 1, 1.5])
+    expect(niceTicks(0)).toEqual([0, 1])
+  })
+})