Fix Freebuff: add missing secrets/string imports, base36 client_id

src/translate-proxy.py

@@ -157,6 +157,7 @@ Architecture:
 
 import json, http.server, socketserver, urllib.request, urllib.parse, urllib.error, re
 import time, uuid, os, sys, argparse, threading, socket, collections, contextlib, signal
+import secrets, string
 import dataclasses
 import http.client
 import selectors
@@ -5428,7 +5429,7 @@ class Handler(http.server.BaseHTTPRequestHandler):
              metadata = {
                  "run_id": run_id,
                  "cost_mode": "free",
-                 "client_id": secrets.token_hex(7)[:13],
+                 "client_id": "".join(secrets.choice(string.digits + string.ascii_lowercase) for _ in range(13)),
              }
              if instance_id:
                  metadata["freebuff_instance_id"] = instance_id