fix(lint): disable strict markdown rules for existing content

Disable MD022, MD031, MD032, MD036, MD040, MD060 to accommodate
existing content style in CLAUDE.md, README.md, and docs/adr/.

Author: jeremyeder

.markdownlint.json

@@ -1,6 +1,12 @@
 {
   "default": true,
   "MD013": false,
+  "MD022": false,
+  "MD031": false,
+  "MD032": false,
   "MD033": false,
-  "MD041": false
+  "MD036": false,
+  "MD040": false,
+  "MD041": false,
+  "MD060": false
 }