Replace repository with grok-reg-protocol-cpa project

Overwrite previous grok-keygen contents with the local registration/CPA protocol codebase (secrets and runtime data excluded).

cpa_xai/__init__.py

@@ -0,0 +1,52 @@
+"""CPA xAI (Grok Build free) auth helpers for the register machine.
+
+Produce CLIProxyAPI-compatible ``xai-<email>.json`` credentials.
+"""
+
+from .accounts import AccountLine, existing_cpa_emails, parse_accounts_file
+from .mint import mint_and_export
+from .probe import probe_mini_response, probe_models
+from .protocol_mint import (
+    ProtocolMintError,
+    extract_sso_from_cookies,
+    mint_with_sso_protocol,
+)
+from .schema import (
+    CLIENT_ID,
+    DEFAULT_BASE_URL,
+    DEFAULT_CLIENT_HEADERS,
+    DEFAULT_REDIRECT_URI,
+    DEFAULT_TOKEN_ENDPOINT,
+    build_cpa_xai_auth,
+    credential_file_name,
+    expired_from_access_token,
+)
+from .writer import write_cpa_xai_auth
+
+# CLIENT_ID lives in oauth_device; re-export from schema if present
+try:
+    from .oauth_device import CLIENT_ID as OAUTH_CLIENT_ID
+except Exception:  # pragma: no cover
+    OAUTH_CLIENT_ID = "b1a00492-073a-47ea-816f-4c329264a828"
+
+__all__ = [
+    "AccountLine",
+    "CLIENT_ID",
+    "DEFAULT_BASE_URL",
+    "DEFAULT_CLIENT_HEADERS",
+    "DEFAULT_REDIRECT_URI",
+    "DEFAULT_TOKEN_ENDPOINT",
+    "OAUTH_CLIENT_ID",
+    "ProtocolMintError",
+    "build_cpa_xai_auth",
+    "credential_file_name",
+    "existing_cpa_emails",
+    "expired_from_access_token",
+    "extract_sso_from_cookies",
+    "mint_and_export",
+    "mint_with_sso_protocol",
+    "parse_accounts_file",
+    "probe_mini_response",
+    "probe_models",
+    "write_cpa_xai_auth",
+]