feat(booter): ctx 1.54.0, process table v9, and Holepunch/POSIX proc parity

- Bump BARE_OS_CTX_API_VERSION to 1.54.0 and POSIX profile to 1.0.19
- Process table schema 9: nice/accountingSource, logical maps/threads /proc builders, renice
- disk.os: replication_operator_sketch v8, HyperDHT address sketch, pkg index surfaces
- Protomux operator sketch v4, security_posture v7, corestore snapshot UX hint, pear_stage_pointer v2
- Swarm: BARE_OS_SWARM_ATTEMPT_BURST_PER_SEC; HDMS: host booter warn logging; shell wait exit codes
- getconf/sysconf: additional _SC_* via bareOsGetconfSysconf; socketMsgSurface v6 (iovec/SUSv4 refs)
- Identity: vault rotation audit includes pathcap trusted key count
- CI/docs: holepunch drift report env, kernel STRUCTURE note, verify-bundle-throws comment, matrices and examples

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

@@ -1,7 +1,7 @@
 {
   "schema": 2,
   "profileId": "bare-os-posix-like",
-  "generatedAt": "2026-04-06T03:01:17.010Z",
+  "generatedAt": "2026-04-06T03:12:50.834Z",
   "note": "Sparse POSIX Issue 7 coverage hints for /bin utilities. Omitted command names are not yet profiled here.",
   "commandIndex": [
     {