Portal server mode for Dokploy: Dockerfile, PORTAL_URLS, PORTAL_SERVER

The results Portal in a Linux container (python 3.13-slim + ODBC Driver
18). PORTAL_SERVER=1: no Start / Stop (the bot runs on the Windows PC).
PORTAL_URLS: allowed hosts / origins, Secure cookie when all https.
RESULTS_DB_CONN (a SQL login) goes in Dokploy's environment, never here.
71 test files, 1222 tests.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/ecw_bot/core/run_lock.py

@@ -21,7 +21,10 @@ import os
 import time
 import json
 import ctypes
-from ctypes import wintypes
+try:
+    from ctypes import wintypes
+except ValueError:      # some non-Windows Pythons; the server Portal
+    wintypes = None     # (PORTAL_SERVER=1) never calls the kernel32 parts
 from datetime import datetime, timedelta
 
 from .. import settings as cfg