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).

gen_alias.py

@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+import random, string, sys
+
+def gen_alias(domain: str, length: int = 10, count: int = 1) -> list[str]:
+    aliases = []
+    for _ in range(count):
+        alias = ''.join(random.choices(string.ascii_lowercase + string.digits, k=length))
+        aliases.append(f"{alias}@{domain}")
+    return aliases
+
+if __name__ == "__main__":
+    domain = sys.argv[1] if len(sys.argv) > 1 else "zhangyunuo.net"
+    count = int(sys.argv[2]) if len(sys.argv) > 2 else 10
+    length = int(sys.argv[3]) if len(sys.argv) > 3 else 10
+    for a in gen_alias(domain, length, count):
+        print(a)