Fixes the Obsidian runtime script-element review error by replacing the mobile PDF dependency containing external script loaders. Local PDF export remains available; a seven-page Chinese/English export retains identical page images. Build checks reject runtime script-element creation in bundled code.
Validation: 24 relevant tests passed; source/client type checks and client build passed; ESLint has no errors. Installation assets are built by public Actions from pinned private client source and have public attestations. Authentication, offline access, sharing, editing and desktop PDF behavior are preserved.