v1.1: harden recovery and control boundaries

WP-D and WP-E complete the planned v1.1 implementation packages.

WP-D — recovery honesty:
- backups verify the completed copy with PRAGMA integrity_check
- corruption missed by quick_check is detected by the full check
- existing good backups remain protected
- oversized exports are still delivered but declare whether this version can
  import them, while the 20 MB import limit remains unchanged
- backup was exercised through the real browser UI on both the normal campaign
  database and a campaign-shaped database over 100 MB

WP-E — control-boundary contrast:
- interactive control boundaries meet the WCAG 1.4.11 3:1 target
- the contrast audit is now a failing gate rather than an advisory
- rendered browser measurements pass for the composer, controls, tabs and nav
- text contrast and focus visibility remain intact
- owner reviewed and approved the before/after screenshots

Reports:
- planning/reports/v1.1/V1.1-WP-D-REPORT.md
- planning/reports/v1.1/V1.1-WP-E-REPORT.md

All planned v1.1 work packages A-E are now complete. Release validation has not
yet begun.

planning/README.md

@@ -3,9 +3,13 @@
 **This file is the index. Start here.**
 
 **Current state:** **v1.0.0 released on 2026-09-14. v1.1 is in progress:
-WP-A1/A2 (`d63804f`), WP-B.1 (`beb17ad`) and WP-B.2 (`0c1ba83`) are committed, and
-WP-C, browser release coverage, is complete and staged for owner review**
-(`reports/v1.1/V1.1-WP-C-REPORT.md`).
+WP-A1/A2 (`d63804f`), WP-B.1 (`beb17ad`), WP-B.2 (`0c1ba83`) and WP-C
+(`59b5ebc`) are committed, and the last two planned packages — WP-D (recovery
+honesty) and WP-E (control-boundary contrast) — are complete and staged for
+owner review** (`reports/v1.1/V1.1-WP-D-REPORT.md`,
+`reports/v1.1/V1.1-WP-E-REPORT.md`). The final browser run passed 101 checks
+across all three suites with 0 failed and 0 skipped. Every planned v1.1 work
+package is now implemented and reported; release validation has not begun.
 Phase 0 complete; AI-DnD forked as the production base; **milestones M1
 through M11 complete and closed**. M11 was accepted at its closeout
 (2026-09-14), the v1 release gate passed on the release-candidate tree, and the