Mirrors the closed app: create a templated file then open it, so you always edit a real file that saves back.
- lib/new-file.ts: minimal valid KiCad templates (pcbnew/eeschema/pl_editor, from the e2e fixtures) + document-tool helpers.
- NewFileDialog: in-project mode (file name) and home mode (pick/create a browser-local project + file name); writes via the active source uploadFileBytes (local IDB or remote-rw backend), then opens by path.
- HomePage: a document tool from the grid (local store on) opens the dialog instead of booting a throwaway blank doc.
- ProjectView: project-centric New-file row (writable projects) + Save-a-copy-to-browser fork for read-only gallery projects (copies into editable IDB), alongside files/export.
Also replaces a stray NUL byte that had been written into idb-project-store.ts in place of a space (made the file parse as binary) with an explicit unicode escape for the key separator (NUL, sorts below every slug char so project key ranges cannot collide) and the range upper bound. Runtime behavior unchanged.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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