release(v4.4.2): bump framework and eight skills to 4.4.2 in lockstep

PATCH release for the fix/issue-9-14 branch (Issue #9 herdr server env
isolation, Issue #14 accepted-prompt delivery confirmation). No code logic
changes.

- lib.sh MAM_VERSION, lib_py/loop/eager.py FRAMEWORK_VERSION and the eight
  SKILL.md frontmatters (create, stop, resume, status, monitor, delegate-job,
  loop, orc-onboard) move from 4.4.1 to 4.4.2
- VERSIONS.md: current release v4.4.2 (2026-09-12 KST), the eight-row skill
  matrix, and a v4.4.2 changelog section in the v4.4.1 format covering the
  server env marker denylist, MAM_NO_AUTOSTART, the shim ls "no server
  running" translation, SKS_DELIVERY_GRACE_S, MAM_INJECT_ACK_GRACE_S, the R1
  pane busy-token grace, the T1-7 trigger change and the 13 new tests
- README, README.ko, BOOTSTRAP and BOOTSTRAP.ko badges and the MESSAGING.md
  "Applies to" header follow the current version; historical 4.4.1 mentions
  (v4.4.1 changelog, IMPROVEMENTS.md ledger, docs/contracts/issue-6, reviewer
  reports) stay as history

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HCGpJXhSZasJLU38ksDghe

.agents/skills/lib_py/loop/eager.py

@@ -13,7 +13,7 @@ import sys
 from typing import List, Sequence
 
 # Framework version locked with framework constants
-FRAMEWORK_VERSION = "4.4.1"
+FRAMEWORK_VERSION = "4.4.2"
 
 CORE_MODULES: Sequence[str] = (
     # Standard library modules