v0.38.1

Changed

• Docs: SPEC.md — family_documents and family_document_access tables added; calendar_events extended with icon and four attachment columns; contacts and birthdays extended with family_user_id; Tasks status includes archived; Documents module section added; Calendar section updated with icons, file attachments, and overlapping event rendering; Settings section updated with Backup Management tab and family member contact fields
• Docs: BACKLOG.md — completed features table brought up to date through v0.38.0 (v0.30.0–v0.38.0 entries added)
• Docs: README.md — Backup entry added to the feature table; Documents entry updated with exact category count
• Docs: CONTRIBUTING.md — innerHTML security note updated to reflect current insertAdjacentHTML/replaceChildren/esc() pattern; individual test-suite commands listed