V41 Promotion: Harden canon README posture rewrite

Makes runtime canon-promotion README rewriting tolerate wrapped demonstration posture text, adds regression coverage for the wrapped inline form, and refreshes the V41 promotion-readiness artifact.

Validation: node --test protocol-demonstration/test/v22-canon-drift.test.js; node scripts/check-v41-gate9-promotion-readiness.mjs --promotion-mode --skip-branch-check --skip-package-tests; node scripts/promote-bitcode-canon.mjs --version V41 --commit HEAD --dry-run; git diff --check.

Author: geraldarthurdavis

.bitcode/v41-promotion-readiness-report.json

@@ -207,7 +207,7 @@
     {
       "relativePath": "scripts/prepare-bitcode-runtime-canon-promotion.mjs",
       "present": true,
-      "digest": "sha256:9b556aca984dcdac18a611e46b71c4d753b2009f21b9a8769f205e8dd1e002fd",
+      "digest": "sha256:77b598b0257d7dc2aef367531126f0d8ef1238d1264a78c1e876c624909b4511",
       "requiredTokens": [
         {
           "token": "--next-draft",

protocol-demonstration/test/v22-canon-drift.test.js

@@ -113,11 +113,11 @@ test('runtime promotion preparation rewrites current inline demonstration README
       '# Bitcode Protocol Demonstration - V29 canonical deterministic local prototype',
       '',
       '`BITCODE_SPEC.txt` is the canonical pointer for active-system work. It currently',
-      'resolves to `V29`; V30 is the active draft target for Protocol/BTD hardening.',
-      '`BITCODE_SPEC.txt -> V29`.',
-      'This demo is governed by the active V29 canonical spec and',
+      'resolves to `V29`; V30 is the active draft target for Protocol/BTD hardening. This',
+      'demo is governed by the active V29 canonical spec and',
       '`BITCODE_SPEC_V29_PROVEN.md` as the current generated appendix while V30 draft',
-      'work proceeds outside the demonstration runtime boundary.'
+      'work proceeds outside the demonstration runtime boundary.',
+      '`BITCODE_SPEC.txt -> V29`.',
     ].join('\n'),
     'utf8'
   );

scripts/prepare-bitcode-runtime-canon-promotion.mjs

@@ -115,11 +115,11 @@ function rewriteReadme(content, version, nextDraft) {
     `resolves to \`${version}\`; ${nextDraft} is the next draft target after this promotion.`
   );
   rewritten = rewritten.replace(
-    /`BITCODE_SPEC\.txt -> V\d+`\.\s+This demo is governed by the active V\d+ canonical\s+spec and\s+`(?:BITCODE_SPEC_V\d+_PROVEN\.md|_legacy\/ENGI_SPEC_V\d+_PROVEN\.md)` as the current generated appendix(?:\s+while\s+[^.]+)?\./m,
+    /`BITCODE_SPEC\.txt -> V\d+`\.\s+This\s+demo is governed by the active V\d+ canonical\s+spec and\s+`(?:BITCODE_SPEC_V\d+_PROVEN\.md|_legacy\/ENGI_SPEC_V\d+_PROVEN\.md)` as the current generated appendix(?:\s+while\s+[^.]+)?\./m,
     `\`BITCODE_SPEC.txt -> ${version}\`. This demo is governed by the active ${version} canonical\nspec and \`${promotedProvenPath(version)}\` as the current generated appendix.`
   );
   rewritten = rewritten.replace(
-    /This demo is governed by the active V\d+ canonical\s+spec and\s+`(?:BITCODE_SPEC_V\d+_PROVEN\.md|_legacy\/ENGI_SPEC_V\d+_PROVEN\.md)` as the current generated appendix(?:\s+while\s+[^.]+)?\./m,
+    /This\s+demo is governed by the active V\d+ canonical\s+spec and\s+`(?:BITCODE_SPEC_V\d+_PROVEN\.md|_legacy\/ENGI_SPEC_V\d+_PROVEN\.md)` as the current generated appendix(?:\s+while\s+[^.]+)?\./m,
     `This demo is governed by the active ${version} canonical\nspec and \`${promotedProvenPath(version)}\` as the current generated appendix.`
   );
   rewritten = rewritten.replace(