[ProtonDev-sys]

Why

Users can copy one row, but cannot save the current filtered table for comparison or investigation. A Save dialog can also deliver background refresh messages, so an export must own its data before the dialog opens.

Changes

• Add File > Export current table and Ctrl+Shift+S on populated table tabs.
• Capture displayed rows, current sort/filter, complete cell text, and dragged visible-column order before showing the Save dialog. Category headings and hidden columns are omitted.
• Write UTF-8 CSV with an encoding marker, quoted fields, escaped quotes, CRLF record endings, and text prefixes for formula-like values.
• Save asynchronously in bounded chunks through an exclusively created temporary sibling; flush and close it before replacing the destination. Failure leaves the previous destination intact and cleans only the owned temporary.
• Recover the action-busy state if the operating system cannot create an action worker.
• Document snapshot semantics and display-value formatting.

Validation

• 23 portable CSV checks passed strict C++20 with warnings as errors and UndefinedBehaviorSanitizer.
• Native fixtures cover header/row order, hidden columns/headings, Unicode cells and paths, snapshot independence, chunked writes, locked destinations, error reporting, and temporary cleanup.
• An independent agent reviewed file ownership, modal-message behavior, and native fixture/API use.
• This branch includes the already reviewed scoped-search changes from Add scoped search and preserve table focus with cheaper filtered refreshes #35 and its MSVC fixture correction. It will merge after Add scoped search and preserve table focus with cheaper filtered refreshes #35. Windows CI validates the combined features with the full build/native/UI/packaging suite.

[coderabbitai]

Important

• 🔍 Trigger review

This repository does not receive automatic reviews because it has fewer than 10 stars.

⚙️ Run configuration

• Configuration used: Organization UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: 8b5b6bd4-721b-42d7-8d66-9f36af443083

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