SheetMog

Mog SDK v0.9.4 delivers a broad spreadsheet quality release across UI behavior, compute fidelity, XLSX roundtrip support, and SDK/runtime packaging.

Primary PR: #304 — Merge dev-v0.9.4 into main

Spreadsheet

• Editing and navigation polish — fixes regressions across keyboard navigation, active-cell semantics, viewport following, formula bar/name box behavior, dialogs, context menus, clipboard/paste, comments, filters, sorting, merge warnings, and table interactions.
• Data features — improves pivots, slicers, charts, autofit, table interactions, and structural mutation metadata for more reliable workbook editing flows.

XLSX And Compute

• Roundtrip fidelity — improves import/export coverage for table catalog identity, structured formula rewrites, conditional formats, validations, hyperlinks, threaded comments, form controls, chart/title metadata, slicers, sheet protection, print settings, outlines, subtotals, and row/column format cascades.
• Runtime hydration — strengthens deferred hydration and viewport patch behavior for large and structurally complex workbooks.

SDK And Tooling

• Public API surfaces — refreshes generated bridge/API artifacts, SDK guidance snapshots, and public runtime surfaces.
• Release readiness — updates README/contributing docs, Codex plugin packaging, publish workflow gating, stale WASM lock recovery, and local readiness prerequisites.

Full Changelog: https://github.com/fundamental-research-labs/mog/compare/sdk-v0.9.3...sdk-v0.9.4