ci(megalinter): suppress devskim false positive in permission data

Exclude the agent permission overlay file from DevSkim scanning where md5sum and sha1sum appear as command-pattern strings, not cryptographic hash usage in code.

Made-with: Cursor

Author: ChipWolf

.mega-linter.yml

@@ -5,3 +5,8 @@ DISABLE:
 SARIF_REPORTER: true
 
 LUA_LUACHECK_ARGUMENTS: "--globals vim"
+
+# DevSkim flags literal md5sum/sha1sum strings in this policy data file as
+# banned hash algorithm usage, but these are command-permission patterns, not
+# cryptographic implementations.
+REPOSITORY_DEVSKIM_FILTER_REGEX_EXCLUDE: home/.chezmoidata/agent-permissions/00-base.yaml