Remove electron dependency from browser build by using platform-agnostic dialog types (#982)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: thomasnordquist <7721625+thomasnordquist@users.noreply.github.com>

.gitignore

@@ -21,3 +21,6 @@ test-expand-*.png
 browser-debug-screenshot.png
 
 app/.webpack-cache
+
+# Temporary files
+/tmp

events/DialogTypes.ts

@@ -0,0 +1,59 @@
+/**
+ * Browser-compatible dialog type definitions
+ * These types mirror Electron's dialog types but don't require the electron package
+ */
+
+export interface FileFilter {
+  name: string
+  extensions: string[]
+}
+
+export interface OpenDialogOptions {
+  title?: string
+  defaultPath?: string
+  buttonLabel?: string
+  filters?: FileFilter[]
+  properties?: Array<
+    | 'openFile'
+    | 'openDirectory'
+    | 'multiSelections'
+    | 'showHiddenFiles'
+    | 'createDirectory'
+    | 'promptToCreate'
+    | 'noResolveAliases'
+    | 'treatPackageAsDirectory'
+    | 'dontAddToRecent'
+  >
+  message?: string
+  securityScopedBookmarks?: boolean
+}
+
+export interface OpenDialogReturnValue {
+  canceled: boolean
+  filePaths: string[]
+  bookmarks?: string[]
+}
+
+export interface SaveDialogOptions {
+  title?: string
+  defaultPath?: string
+  buttonLabel?: string
+  filters?: FileFilter[]
+  message?: string
+  nameFieldLabel?: string
+  showsTagField?: boolean
+  properties?: Array<
+    | 'showHiddenFiles'
+    | 'createDirectory'
+    | 'treatPackageAsDirectory'
+    | 'showOverwriteConfirmation'
+    | 'dontAddToRecent'
+  >
+  securityScopedBookmarks?: boolean
+}
+
+export interface SaveDialogReturnValue {
+  canceled: boolean
+  filePath?: string
+  bookmark?: string
+}

events/EventsV2.ts

@@ -62,8 +62,8 @@ export interface CertificateUploadResponse {
   data: string // base64 encoded
 }
 
-// Electron dialog types (re-exported for convenience)
+// Dialog types (browser-compatible versions)
-import { OpenDialogOptions, OpenDialogReturnValue, SaveDialogOptions, SaveDialogReturnValue } from 'electron'
+import type { OpenDialogOptions, OpenDialogReturnValue, SaveDialogOptions, SaveDialogReturnValue } from './DialogTypes'
 
 export type OpenDialogOptionsV2 = OpenDialogOptions
 export type OpenDialogReturnValueV2 = OpenDialogReturnValue

events/OpenDialogRequest.ts

@@ -1,4 +1,4 @@
-import { OpenDialogOptions, OpenDialogReturnValue, SaveDialogOptions, SaveDialogReturnValue } from 'electron'
+import type { OpenDialogOptions, OpenDialogReturnValue, SaveDialogOptions, SaveDialogReturnValue } from './DialogTypes'
 import { RpcEvent } from './EventSystem/Rpc'
 
 // Legacy functions - use RpcEvents from EventsV2.ts for new code