chore(release): bump to v7.2.0
Batch B release — closes critical-review B-tier scanner defects
(B3, B5, B6, B7) and the v7.2.0 evasion-arsenal hardening patches
(E1, E4, E5, E7, E15, E16, E17, E18). Tests 1522 → 1665+, attack
simulator 64 → 72 (100 % pass).
Version updates across the 6 sync targets:
- package.json
- .claude-plugin/plugin.json
- CLAUDE.md (header + test count: 1511 → 1665+)
- README.md (badge + Version History row)
- scanners/ide-extension-scanner.mjs (VERSION constant)
- ../../README.md (marketplace root)
CHANGELOG [7.2.0] entry per Keep a Changelog with full Added /
Changed / Documentation / Tests / Notes breakdown.
Refs: Batch B Wave 6 / Step 15
3b57dfbf6d