CI/docs: placeholder-baseline --check, seeder↔kernel sync script and docs,

holepunch lockfile drift Markdown dashboard + doc links
- disk.os / ctx: replication_operator_sketch schema 5 + corestore stats;
  protomux extensions proc versioning; HRPC allowlist_sketch schema 3 +
  versioned stock route table; swarm_health proc + runtime caps paths
- Session: BARE_OS_HOSTNAME_SET + ctx.bareOsSetSessionHostname, hostname man,
  security_posture; export -p in shell
- kernel.ext.d: optional provides[] version conflict detection (strict boot);
  resolver parity + tests; BARE_OS_INIT_DEFER_KERNEL_EXT_GRAPH documented
- VFS/policy: mirror/aux read tests, GUEST_BARE_READ_ALL edge negative test;
  adaptive warm-cache window env documented; microbench note
- POSIX: syscalls.json schema 10, posix_fadvise no-op, getconf + conformance
  matrix sync; posix-issue7-traceability index; handbook/profile/matrix updates
- Seeder: pear.multisig hint tests; SCM_RIGHTS unit coverage extended
- Regenerated kernel bundle, seeder kernel mirror, posix dashboard, coreutils
  build/man; booter CHANGELOG maintenance row updated
Full npm test / pretest green.

docs/architecture/POSIX_DECLARED_PROFILE.md

@@ -18,7 +18,7 @@ This document is the **normative contract** for how closely the stock Bare OS ke
 
 Bare OS does **not** expose a C ABI. The following **observability contracts** stand in for “system calls”:
 
-- **`/proc/bare_os/syscalls.json`** — Declares **fd model**, **signal model**, **errno hints**, **operation detail**, **`posixXsh`**, **`socketMsgSurface`**, and related adjuncts (schema **9** in stock builds; see [`docs/reference/posix-compliance-matrix.json`](../reference/posix-compliance-matrix.json)). **`ops`** lists invocable **`ctx.bareOsSyscall`** names (**`clock_gettime`** added for REALTIME / MONOTONIC sketches alongside **`nanosleep`**); **`opsDetail`** also carries **POSIX.1 XSH** logical names (**`open`**, **`close`**, **`read`**, **`write`**, **`readv`**, **`writev`**, **`getsockopt`**, **`setsockopt`**, **`lseek`**, **`pipe`**, **`dup`**, **`dup2`**, **`fcntl`**, **`poll`**, **`select`**, **`umask`**, and **socket family** probes) with **`posixAlignment`** (**`simulated`**, **`partial`**, **`ENOTSUP`**) and **`mapsTo`** for traceability. The **`posixXsh`** object summarizes those XSH names (via **`bareOsPosixXshOpsCsv()`**). **`socketMsgSurface`** (schema **4**) documents **`sendmsg`** / **`recvmsg`** on the bridge: bounded **iovec** flattening for datagram and stream paths; binary ancillary control on **`sendmsg`** remains **`ENOTSUP`** with structured rejection metadata unless **`BARE_OS_POSIX_SOCKET_SCM_RIGHTS=1`**, in which case JSON-shaped **`cmsgs`** may request logical **`scmRightsLocalDup`** (guest logical FD duplication — not host **`SCM_RIGHTS`**); **`recvmsg`** reports **`controllen: 0`** on the receive path. **`fcntl`** supports **`F_GETFL`** / **`F_SETFL`** (Linux-shaped **`O_APPEND`** **`0x400`**, **`O_NONBLOCK`** **`0x800`**) and **cooperative advisory locks** via **`F_GETLK`** / **`F_SETLK`** / **`F_SETLKW`** using **`args.path`** (absolute) or **`args.fd`** whose logical target is an absolute path; contended **`F_SETLK`** returns **`EAGAIN`**. **`F_SETLKW`** also returns **`EAGAIN`** by default; with **`BARE_OS_POSIX_FCNTL_BLOCKING_WAIT`**, waiters are queued **FIFO per lock path** until the lock is free or **`BARE_OS_FCNTL_LOCK_WAIT_MS_MAX`** elapses (**`ETIMEDOUT`**; default **30000** ms, max **300000**). There is **no** cross-path global fairness and **no** host deadlock detection. Unknown FDs yield **`EBADF`**. **`readv`** / **`writev`** perform bounded scatter/gather on **`BARE_OS_POSIX_FD_SIM`** pipe read/write ends. **`poll`** / **`select`** share the same logical FD readiness probe when **`BARE_OS_POSIX_FD_SIM`** is enabled; with **`BARE_OS_POSIX_SOCKET_FD_BRIDGE=1`**, bridged **datagram** fds participate (**`SOCK_DGRAM`** via **`bareDgram`** when merged) with bounded **`recv`** / **`recvfrom`** queues (**`BARE_OS_POSIX_DGRAM_RECVQ_MAX`**, **`BARE_OS_POSIX_DGRAM_RECV_BLOCK_MS_MAX`**); passive **`SOCK_STREAM`** uses **`bind`/`listen`/`accept`** when **`bareTcp.Server`** is available. **Socket-shaped** syscalls default to **`ENOSYS`** / **`ENOTSUP`**; with **`BARE_OS_POSIX_SOCKET_FD_BRIDGE=1`**, **`socket`** + **`connect`** may use **`ctx.bare.bareTcp.Socket`** (**`SOCK_STREAM`**) or **`bareDgram`** (**`SOCK_DGRAM`**) when merged. The stock booter **caches** this JSON until warm read-cache invalidation.
+- **`/proc/bare_os/syscalls.json`** — Declares **fd model**, **signal model**, **errno hints**, **operation detail**, **`posixXsh`**, **`socketMsgSurface`**, and related adjuncts (schema **10** in stock builds; see [`docs/reference/posix-compliance-matrix.json`](../reference/posix-compliance-matrix.json)). **`ops`** lists invocable **`ctx.bareOsSyscall`** names (**`posix_fadvise`** as a simulated no-op hint; **`clock_gettime`** for REALTIME / MONOTONIC sketches alongside **`nanosleep`**); **`opsDetail`** also carries **POSIX.1 XSH** logical names (**`open`**, **`close`**, **`read`**, **`write`**, **`readv`**, **`writev`**, **`getsockopt`**, **`setsockopt`**, **`lseek`**, **`pipe`**, **`dup`**, **`dup2`**, **`fcntl`**, **`poll`**, **`select`**, **`umask`**, **`fsync`**, **`fdatasync`**, **`posix_fadvise`**, and **socket family** probes) with **`posixAlignment`** (**`simulated`**, **`partial`**, **`ENOTSUP`**) and **`mapsTo`** for traceability. The **`posixXsh`** object summarizes those XSH names (via **`bareOsPosixXshOpsCsv()`**). **`socketMsgSurface`** (schema **4**) documents **`sendmsg`** / **`recvmsg`** on the bridge: bounded **iovec** flattening for datagram and stream paths; binary ancillary control on **`sendmsg`** remains **`ENOTSUP`** with structured rejection metadata unless **`BARE_OS_POSIX_SOCKET_SCM_RIGHTS=1`**, in which case JSON-shaped **`cmsgs`** may request logical **`scmRightsLocalDup`** (guest logical FD duplication — not host **`SCM_RIGHTS`**); **`recvmsg`** reports **`controllen: 0`** on the receive path. **`fcntl`** supports **`F_GETFL`** / **`F_SETFL`** (Linux-shaped **`O_APPEND`** **`0x400`**, **`O_NONBLOCK`** **`0x800`**) and **cooperative advisory locks** via **`F_GETLK`** / **`F_SETLK`** / **`F_SETLKW`** using **`args.path`** (absolute) or **`args.fd`** whose logical target is an absolute path; contended **`F_SETLK`** returns **`EAGAIN`**. **`F_SETLKW`** also returns **`EAGAIN`** by default; with **`BARE_OS_POSIX_FCNTL_BLOCKING_WAIT`**, waiters are queued **FIFO per lock path** until the lock is free or **`BARE_OS_FCNTL_LOCK_WAIT_MS_MAX`** elapses (**`ETIMEDOUT`**; default **30000** ms, max **300000**). There is **no** cross-path global fairness and **no** host deadlock detection. Unknown FDs yield **`EBADF`**. **`readv`** / **`writev`** perform bounded scatter/gather on **`BARE_OS_POSIX_FD_SIM`** pipe read/write ends. **`poll`** / **`select`** share the same logical FD readiness probe when **`BARE_OS_POSIX_FD_SIM`** is enabled; with **`BARE_OS_POSIX_SOCKET_FD_BRIDGE=1`**, bridged **datagram** fds participate (**`SOCK_DGRAM`** via **`bareDgram`** when merged) with bounded **`recv`** / **`recvfrom`** queues (**`BARE_OS_POSIX_DGRAM_RECVQ_MAX`**, **`BARE_OS_POSIX_DGRAM_RECV_BLOCK_MS_MAX`**); passive **`SOCK_STREAM`** uses **`bind`/`listen`/`accept`** when **`bareTcp.Server`** is available. **Socket-shaped** syscalls default to **`ENOSYS`** / **`ENOTSUP`**; with **`BARE_OS_POSIX_SOCKET_FD_BRIDGE=1`**, **`socket`** + **`connect`** may use **`ctx.bare.bareTcp.Socket`** (**`SOCK_STREAM`**) or **`bareDgram`** (**`SOCK_DGRAM`**) when merged. The stock booter **caches** this JSON until warm read-cache invalidation.
 - **`/proc/bare_os/process_table.json`** — **PGID** / **SID**-style fields, **`parentName`** (from **`ppid`**), **signal routing**, and initd binding for the **logical** process table (not host PIDs).
 
 **Explicit non-goals**