File based settings (#1361)

* Rename GlobalStateContext to SettingsAuthContext

* Naive initial impl of settings persistence to file system

* Update app identifier in tauri config

* Add "show in folder" tauri command

* Load from and save to file system in Tauri app

* Add documents drive to tauri permission scope

* Add recursive prop to default dir selection dialog

* Add success toast to web restore defaults action

* Add a way to validate read-in settings

* Update imports to use separate settings lib file

* Validate localStorage-loaded settings, combine error message

* Add a e2e test for validation

* Clean up state state bugs

* Reverse validation looping so new users don't error

* update settingsMachine typegen to remove conflicts

* Fmt

* Fix TS errors

e2e/playwright/flow-tests.spec.ts

@@ -3,6 +3,7 @@ import { secrets } from './secrets'
 import { getUtils } from './test-utils'
 import waitOn from 'wait-on'
 import { Themes } from '../../src/lib/theme'
+import { initialSettings } from '../../src/lib/settings'
 
 /*
 debug helper: unfortunately we do rely on exact coord mouse clicks in a few places
@@ -386,6 +387,53 @@ test('Auto complete works', async ({ page }) => {
   |> xLine(5, %)`)
 })
 
+// Stored settings validation test
+test('Stored settings are validated and fall back to defaults', async ({
+  page,
+  context,
+}) => {
+  // Override beforeEach test setup
+  // with corrupted settings
+  await context.addInitScript(async () => {
+    const storedSettings = JSON.parse(
+      localStorage.getItem('SETTINGS_PERSIST_KEY') || '{}'
+    )
+
+    // Corrupt the settings
+    storedSettings.baseUnit = 'invalid'
+    storedSettings.cameraControls = `() => alert('hack the planet')`
+    storedSettings.defaultDirectory = 123
+    storedSettings.defaultProjectName = false
+
+    localStorage.setItem('SETTINGS_PERSIST_KEY', JSON.stringify(storedSettings))
+  })
+
+  await page.setViewportSize({ width: 1200, height: 500 })
+  await page.goto('/', { waitUntil: 'domcontentloaded' })
+
+  // Check the toast appeared
+  await expect(
+    page.getByText(`Error validating persisted settings:`, { exact: false })
+  ).toBeVisible()
+
+  // Check the settings were reset
+  const storedSettings = JSON.parse(
+    await page.evaluate(
+      () => localStorage.getItem('SETTINGS_PERSIST_KEY') || '{}'
+    )
+  )
+  await expect(storedSettings.baseUnit).toBe(initialSettings.baseUnit)
+  await expect(storedSettings.cameraControls).toBe(
+    initialSettings.cameraControls
+  )
+  await expect(storedSettings.defaultDirectory).toBe(
+    initialSettings.defaultDirectory
+  )
+  await expect(storedSettings.defaultProjectName).toBe(
+    initialSettings.defaultProjectName
+  )
+})
+
 // Onboarding tests
 test('Onboarding redirects and code updating', async ({ page, context }) => {
   const u = getUtils(page)