Replace Enter-key process detail pretty-print with flattened/summary/fd/env

views; gate legacy JSON with BARE_TOP_PROC_DETAIL_JSON.

Render nested snapshot fields via bareTopFormatNestedBrief instead of compact
JSON snippets (features, net helpers, overview).

Retitle help/initd copy and soften catalog quotas hint; document new env in
-h and F2 setup. Regenerate kernel baretop/btop bundles.

Shallow object lines format *Bytes and *Ms with existing formatters.

packages/bare-os-seeder/kernel/etc/bare-os/posix_utilities.json

@@ -1,7 +1,7 @@
 {
   "schema": 2,
   "profileId": "bare-os-posix-like",
-  "generatedAt": "2026-04-21T22:34:00.573Z",
+  "generatedAt": "2026-04-21T23:00:58.659Z",
   "note": "Sparse POSIX Issue 7 coverage hints for /bin utilities. Omitted command names are not yet profiled here.",
   "commandIndex": [
     {