- Add kernel init bundle helper + verify:init-bundle; tighten release-checklist gates

- Implement cooperative F_GETLK/F_SETLK/F_SETLKW; optional BARE_OS_POSIX_SOCKET_FD_BRIDGE
- Add ctx.bareOsGetconfSysconf; extend getconf for _SC_*; awk delete stmt; POSIX heredoc cap
- disk.os: replication_snapshot + replication_operator_sketch; blind-relay swarm schema 2
- Protomux operatorMetrics.backpressureEmitCount; warm-cache invalidate on boot/init puts
- Bump POSIX profile 1.0.6 and syscalls.json schema 6; sync schemas, handbook, env appendix
- Tests + seeder/kernel parity (rsync after coreutils/bare-libs builds)

kernel/bin/getconf

@@ -214,6 +214,21 @@ async function run(ctx, argv) {
 
   const name = positional[0]
 
+  if (typeof ctx.bareOsGetconfSysconf === 'function') {
+    try {
+      const dyn = ctx.bareOsGetconfSysconf(name)
+      if (dyn != null && dyn !== '') {
+        ctx.console.log(String(dyn))
+        ctx.exitCode = 0
+        return
+      }
+    } catch (e) {
+      ctx.console.error('getconf: ' + (e?.message || String(e)))
+      ctx.exitCode = 1
+      return
+    }
+  }
+
   if (Object.prototype.hasOwnProperty.call(CONF, name)) {
     ctx.console.log(CONF[name])
     ctx.exitCode = 0