Extract authenticated coulomb.social design language via designlang

Session probe lands on /vw_pages (Research). Use main designlang extract
with --cookie-file — pack ignores auth. 39 artifacts under
docs/design-extract; tolerate designlang late summary crash when cores exist.

docs/design-extract/coulomb-social-form-states.json

@@ -0,0 +1,23 @@
+{
+  "flags": [],
+  "forms": {
+    "count": 0,
+    "families": {}
+  },
+  "inputTypesSeen": {
+    "textarea": 10,
+    "input": 6
+  },
+  "modals": [],
+  "toastLibraries": [],
+  "loading": {
+    "skeleton": 0,
+    "spinner": 0
+  },
+  "empty": {
+    "count": 0
+  },
+  "error": {
+    "count": 0
+  }
+}