SheetMog

Mog SDK v0.9.5 expands mutation receipts, SDK diagnostics, and spreadsheet runtime fidelity.

Primary PR: #306 — Merge dev-v0.9.5 into main

SDK API

• Operation receipts — adds structured receipt contracts across workbook and worksheet mutation paths, including comments, slicers, conditional formats, validation, names, charts, pivots, tables, filters, floating objects, lifecycle operations, and autofill preview.
• API ergonomics — adds A1 helpers, worksheet formula helpers, workbook diagnostics, chart source diagnostics, sheet lookup diagnostics, range/cell read improvements, and executeCode mutation contracts.
• API guidance — refreshes generated SDK API guidance, specs, snapshots, and public references for the expanded surface.

Spreadsheet Runtime

• Mutation freshness — fixes app/runtime behavior around fresh mutation results, runtime dirty events, and XLSX hydration dirty tracking.
• Navigation and editing — improves hidden outline/filter evaluation, hidden-cell navigation, name box validation, autofit resize tracking, and Data Table dialog evaluation contracts.
• Pivot and drag behavior — improves pivot refresh behavior and drag autoscroll handling.

Compute and XLSX

• Formula and fill fidelity — hardens fill previews, shared formula parsing, undo/redo result payloads, and workbook facade capability metadata.
• OOXML serialization — improves prefixed worksheet tags and x14 cfvo fallback serialization.

Full Changelog: https://github.com/fundamental-research-labs/mog/compare/sdk-v0.9.4...sdk-v0.9.5