Exports: Chinese annotation text shows as "?", and labels like "Last verified" stay English #287

Reported by @Weiking2019 in #188 (StepForge 1.6.2, Windows, Chinese):

1.6.2,工具栏的文本框和提示框，中文导出pdf和word不显示。
(Chinese text in text-box and tooltip annotations doesn't show in PDF and Word exports.)

Untranslated elements in PDF exports. Some elements are still displayed in English in the exported PDF, even when another language is selected. For example: "Last verified: 2026-11-09".

Two problems:

1. Annotation text burned into exported screenshots (text boxes, tooltips, GIF title cards) is drawn from a Latin-only Lato atlas, so Chinese and every other non-Latin script comes out as ? in every export format.
2. Text StepForge adds to exports ("Last verified", "Contents", page numbers, alt text, callout names, ...) and many app messages are always English. Every supported language should be complete, in the app and in exports.