feat: implement permissions and actions management

- Add permissions logic for status options in corrective actions.
- Create tests for permissions functionality.
- Implement queries for user authentication and actions management.
- Develop Actions page to display and manage corrective actions.
- Create authentication pages for login, setup, and password reset.
- Add IncidentDetail page to view incident details and associated actions.
- Implement Settings page for user management and password changes.

server/lib/file-type.test.ts

@@ -0,0 +1,19 @@
+import { describe, expect, it } from 'vitest'
+import { detectFileType } from './file-type.ts'
+
+const bytes = (...values: (number | string)[]) => new Uint8Array(values.flatMap((v) => (typeof v === 'string' ? [...v].map((ch) => ch.charCodeAt(0)) : [v])))
+
+describe('detectFileType', () => {
+  it('recognises supported formats', () => {
+    expect(detectFileType(bytes(0xff, 0xd8, 0xff, 0xe0))?.contentType).toBe('image/jpeg')
+    expect(detectFileType(bytes('RIFF', 0, 0, 0, 0, 'WEBP'))?.contentType).toBe('image/webp')
+    expect(detectFileType(bytes(0, 0, 0, 24, 'ftypheic'))?.contentType).toBe('image/heic')
+    expect(detectFileType(bytes('%PDF-1.7'))?.contentType).toBe('application/pdf')
+  })
+
+  it('rejects everything else', () => {
+    expect(detectFileType(bytes('<svg xmlns="http://www.w3.org/2000/svg">'))).toBeNull()
+    expect(detectFileType(bytes('PK', 3, 4))).toBeNull()
+    expect(detectFileType(new Uint8Array())).toBeNull()
+  })
+})