v0.2.0 - Tab-order fix, hidden-page support, Word export

Fixed

• Tab-order detection: the rule engine treated any negative tabOrder
  value as "explicitly hidden from tab order", which caused decorative
  shapes with unusual (but not actually hidden) tab-order values to be
  silently skipped instead of flagged. Now only the documented -1 sentinel
  counts as hidden, so decorative elements that are genuinely still focusable
  get correctly reported.
• Unlabeled visuals (slicers, cards, buttons with no title) now show a
  friendly description (e.g. "Card · fields: SPI, Health Score") instead of
  their raw internal GUID, in both console and Word output.

Added

• --include-hidden flag on check: also audits pages marked
  hidden-in-view-mode (drillthrough/tooltip pages), which are skipped by
  default since end users don't land on them directly during normal
  navigation.
• --docx <path> flag on check: writes a formatted Word document of the
  findings, suitable for sharing with a client or stakeholder. Includes an
  overall summary by category, plus a per-page summary and detailed findings
  table so issues are easy to locate and fix page by page.

Notes

• New dependency: docx. Run npm install after updating.