B-217: show full header username without 108px truncation

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

config/architecture-inventory.json

@@ -372,8 +372,8 @@
   "css_layers": [
     "/shared/tokens.css?v=20260820-2",
     "/shared/base.css?v=20260806-1",
-    "/shared/shell.css?v=20260820-5",
-    "/shared/auth.css?v=20260820-4",
+    "/shared/shell.css?v=20260820-6",
+    "/shared/auth.css?v=20260820-5",
     "/shared/components/controls.css?v=20260820-2",
     "/shared/components/navigation.css?v=20260820-1",
     "/shared/components/cards.css?v=20260820-1",
@@ -451,8 +451,8 @@
     },
     {
       "path": "frontend/shared/shell.css",
-      "bytes": 63204,
-      "lines": 3761
+      "bytes": 63245,
+      "lines": 3762
     },
     {
       "path": "backend/features/heaven/engine.py",