refactor: AI_POLICY/CONTRIBUTING back to root; allowlist updated (PyAutoMind#253) (#40)

Co-authored-by: Jammy2211 <JNightingale2211@gmail.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Author: 3 people

.github/AI_POLICY.md AI_POLICY.md.github/AI_POLICY.md renamed to AI_POLICY.md

@@ -27,6 +27,8 @@
 ALLOWED_TOP_FILES = {
     ".gitignore",
     "AGENTS.md",
+    "AI_POLICY.md",
+    "CONTRIBUTING.md",
     "CLAUDE.md",
     "LICENSE",
     "Makefile",