Release 1.7.0

- CHANGELOG: cut the 1.7.0 release (dated 2026-06-10); reset Unreleased.
- VERSION: 1.6.28 → 1.7.0.
- Manuals (DA + EN): bump version stamps; correct the redaction section
  (cards are now kept/greyed until the next scan, not removed) and add the
  same keep-until-next-scan note to the deletion section, including the
  partial-failure behaviour.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

VERSION

@@ -1 +1 @@
-1.6.28
+1.7.0