cadence-diff 1.0.0

The first stable release of the local, read-only QC workbench for recurring Excel and PowerPoint deliverables.

Highlights

Current-file preflight, baseline/current cycle comparison, and final Excel-to-PowerPoint package reconciliation.
Complete atomic evidence with semantic review groups, guided priority, change stories, comments, explicit analyst dispositions, Re-QC lineage, sign-off, and attestations.
Streaming OOXML loading, proactive XLSB workload safeguards, bounded large-run processing, compressed lazy history, deferred report generation, and explicit checked/degraded/unavailable coverage.
Formula, value, structure, dependency, circular-reference, workbook-risk, chart, PowerPoint, repeated-claim, package-period, and confirmed Excel-to-PowerPoint mapping checks.
Bounded multi-workbook packages with stable member identity, member-qualified evidence, whole-package mappings, and strict package sanitization.
Windows desktop click-to-focus for exact byte-matched, already-open Excel and PowerPoint documents; disabled by default and explicitly confirmed before use.
Local-only NiceGUI workflow, structural fingerprints, privacy verification, signed evidence, CLI automation, and a packaged junior-analyst Guide.

Source Office files are read-only and never overwritten.
Unsupported or unreadable representations are disclosed as degraded or unavailable rather than treated as clean.
Pictures, embedded objects, rendered appearance, OCR, and upstream business correctness remain outside automated proof.
Excel-to-PowerPoint suggestions are deterministic search aids; analyst-confirmed mappings are rechecked automatically on later runs.
XLSB formula text depends on installed desktop Excel on Windows or sandboxed LibreOffice on Linux. Saved-value and formula-presence checks remain available when enrichment is unavailable.
Windows/QEMU acceptance does not replace corporate Group Policy, EDR, add-in, or production-desktop validation.