feat: align AI configuration and task trunk concurrency with shared schema

scripts/check-current-contracts.py

@@ -11,7 +11,7 @@ def git(root, *args):
     return subprocess.check_output(['git', '-C', str(root), *args], text=True, stderr=subprocess.STDOUT).strip()
 
 
-def check_checkout(root):
+def check_checkout(root, updating=False):
     if (root / 'contracts/local').exists():
         raise ValueError('contracts/local is a forbidden parallel contract source')
     entry = git(root, 'ls-files', '--stage', '--', 'contracts/schema').split()
@@ -25,7 +25,9 @@ def check_checkout(root):
         raise ValueError('contract submodule origin must be ' + URL)
     commit = git(sub, 'rev-parse', 'HEAD')
     if commit != entry[1]:
-        raise ValueError('contract HEAD does not match the project pin; stage the verified contracts/schema pointer')
+        if not updating:
+            raise ValueError('contract HEAD does not match the project pin; stage the verified contracts/schema pointer')
+        git(sub, 'merge-base', '--is-ancestor', entry[1], commit)
     if git(sub, 'status', '--porcelain', '--untracked-files=all'):
         raise ValueError('contract submodule has uncommitted changes; verify and commit them in the shared repository')
     return commit
@@ -39,7 +41,7 @@ def main():
     checker = importlib.util.module_from_spec(spec)
     spec.loader.exec_module(checker)
     count = checker.verify_bundle(checker_path.parent)
-    print(f'shared contract {commit}: {count} JSON files; source/bundle hashes and offline references valid')
+    print(f'shared contract {commit}: {count} JSON files; offline references and historical provenance valid')
 
 
 if __name__ == '__main__':