feat(redirect80): new HTTP→HTTPS redirect service on port 80

Pure Python stdlib http.server + ThreadingMixIn, zero web framework deps.
- GET/HEAD → 301, POST/PUT/DELETE/PATCH → 308
- Reads Host header, strips port, redirects to https://{host}{path}
- Config via confs (retry_on_refused, hard dependency) + env var override
- Logs via log_client → db Logs table (fail-safe async batch)
- Port 80 privilege via setcap cap_net_bind_service in _run.sh

confs/configs/redirect80.ini

@@ -0,0 +1,5 @@
+[server]
+host = 0.0.0.0
+port = 80
+redirect_port = 443
+redirect_code = 301