security-7-migration: add javap inspection output, link the article

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01YPgGH6aMbSLANL3E2HHmS6

security-7-migration/scripts/inspect-jars.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# Shows two signatures that api_diff.py reports as "removed", straight from javap, so the report can be read correctly.
+set -u
+cd "$(dirname "$0")/.."
+J=target/jars
+{
+  for v in 6.5.11 7.1.2; do
+    echo "== Spring Security $v: BCryptPasswordEncoder"
+    javap -protected -cp $J/spring-security-crypto-$v.jar org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder 2>/dev/null | grep -E "encode|matches|upgradeEncoding"
+    echo "== Spring Security $v: AuthorizationManager"
+    javap -protected -cp $J/spring-security-core-$v.jar org.springframework.security.authorization.AuthorizationManager 2>/dev/null | grep -E "check|authorize"
+    echo
+  done
+} | sed 's/org\.springframework\.security\.//g' > output/08-javap-encoder-and-manager.txt