Fixed dd /dev/zero truncation in packages/bare-os-coreutils/src/dd.js

if=/dev/zero with finite count*bs now produces requested size directly (not limited by VFS 64KiB pseudo-file).
Raw stdout now uses bareOsEmitRaw, improving pipeline correctness.
Fixed pipeline capture path for FIFO-relevant commands

echo and cat now emit via bareOsEmitRaw (packages/bare-os-coreutils/src/echo.js, packages/bare-os-coreutils/src/cat.js).
Shell pipeline now injects bareOsBinWrite into child contexts when output is captured, so raw writes are captured (packages/bare-os-booter/lib/shell.js).
Improved xattr behavior in packages/bare-os-coreutils/src/xattr.js

Added -p/--print NAME.
-w now logs written attribute name for visible success feedback.
Roundtrip behaviors preserved with sidecar metadata format.
Improved ACL UX in:

packages/bare-os-coreutils/src/getfacl.js
Explicit source header for sidecar and mode fallback (non-compact mode).
packages/bare-os-coreutils/src/setfacl.js
Added -m/--modify ENTRY in addition to stdin blob and -b.
Implemented dynamic ulimit output in packages/bare-os-coreutils/src/ulimit.js

Reads /proc/bare_os/rlimits.json when available.
Supports -a, -n, -Sn, -Hn.
Added shuf -e support in packages/bare-os-coreutils/src/shuf.js.

Added split byte-suffix parsing (k/K/m/M/g/G) and attached -bSIZE support in packages/bare-os-coreutils/src/split.js.

kernel/etc/bare-os/posix_utilities.json

@@ -1,7 +1,7 @@
 {
   "schema": 2,
   "profileId": "bare-os-posix-like",
-  "generatedAt": "2026-04-27T12:05:37.921Z",
+  "generatedAt": "2026-04-27T12:14:28.388Z",
   "note": "Sparse POSIX Issue 7 coverage hints for /bin utilities. Omitted command names are not yet profiled here.",
   "commandIndex": [
     {