feat: kernel roadmap wave — bits4, policy v4, Pear/Bare compatibility

- protocol/booter: bits4 handshake, proc surfaces, boot policy v4, telemetry v4
- coreutils: nohup + ensure-man-pages; seed-man-pages fixes for extra pages
- kernel-runner: no static node:module (Pear); bare-module createRequire
- docs: handbook, reference, ADR, compatibility matrix, verify scripts

scripts/verify-ctx-api-feature-bits.mjs

@@ -56,6 +56,10 @@ function main() {
     console.error('index.js should wire seed/features bits3')
     process.exit(1)
   }
+  if (!idx.includes('bits4')) {
+    console.error('index.js should wire seed/features bits4')
+    process.exit(1)
+  }
 
   const bitsSrc = read(bitsPath)
   if (!bitsSrc.includes('export const BARE_OS_KERNEL_FEATURES_STOCK_V1')) {
@@ -76,6 +80,12 @@ function main() {
     )
     process.exit(1)
   }
+  if (!bitsSrc.includes('export const BARE_OS_KERNEL_FEATURES_STOCK_V4')) {
+    console.error(
+      'kernel-feature-bits.js missing BARE_OS_KERNEL_FEATURES_STOCK_V4'
+    )
+    process.exit(1)
+  }
   const docMatch = bitsSrc.match(
     /export const BARE_OS_KERNEL_FEATURE_BITS_DOC = (\d+)/
   )