Share one user form, add user photos and Revoke, confirm every form

- Settings > Users uses the people UserForm (useFormInit) instead of its
  own copy; it saves in one request through users/save-user, which now
  takes an optional profile photo (setUserProfileImage)
- Revoke action on user rows adds the revoked type, as the edit form would
- Every admin form asks for confirmation before it saves

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/types/index.ts

@@ -755,6 +755,8 @@ export type AdminFetchParams<T extends {} = BUN_SQLITE_COBBLE_ALL_TYPEDEFS> = {
 
 export type UserFormObject = BUN_SQLITE_COBBLE_USERS & {
     user_types?: UserType[];
+    password?: string;
+    confirm_password?: string;
 };
 
 export type PageQueryObject = {