Pin P24 old-slot preservation and exact restored snapshot evidence

docs/plans/original-completion-2026-10-02/execution/p18_review_context.py

@@ -89,6 +89,29 @@ def runtime_context(git, repo, revision):
     return context, proof
 
 
+def unchanged_dependency_context(repo, revision):
+    selected = {
+        'scripts/relationship/relationship_state.gd': None,
+        'scripts/staff/staff_service.gd': ['remove_staff', 'retire_staff'],
+        'scripts/guest/guest_service.gd': ['despawn_guest'],
+    }
+    result = {}
+    for path, names in selected.items():
+        full = source(repo, revision, path)
+        assert full == source(repo, BASE, path), 'relationship dependency changed; review complete delta first'
+        entry = {'path': path, 'revision': revision, 'whole_source_sha256': sha(full),
+                 'unchanged_from_base': True, 'whole_file_included': names is None}
+        if names is None:
+            entry['source'] = full
+        else:
+            lines, _, methods = method_ranges(full)
+            assert all(name in methods for name in names), 'required dependency method absent'
+            entry['complete_methods'] = {name: ''.join(lines[methods[name][0]:methods[name][1]]) for name in names}
+            entry['omitted_scope'] = 'Other unchanged methods; not entire service review'
+        result[path] = entry
+    return result
+
+
 def packet(runner, task_id, revision, original_packet):
     from runner.core import git, allowed, secret_path, read_json, CONTROL, require
     task = runner.task(task_id)
@@ -120,6 +143,7 @@ def packet(runner, task_id, revision, original_packet):
     body['sources'][MARKERS] = json.dumps(reduced, ensure_ascii=False, indent=2)
     body['immutable_identity_catalog'] = {p: source(runner.repo, revision, p)
                                         for p in ['data/characters/mvp_unique_characters.json']}
+    body['immutable_relationship_dependencies'] = unchanged_dependency_context(runner.repo, revision)
     body['tests'] = [read_json(row[0]) for row in runner.db.execute(
         "SELECT artifact FROM evidence WHERE task_id=? AND kind='validation' AND commit_sha=? AND passed=1",
         (task_id, revision))]