sciagent code + Gitea Actions CI/CD

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

deploy/nginx/minio-s3-proxy.conf.example

@@ -0,0 +1,47 @@
+# Example: expose MinIO S3 API on HTTPS for presigned URLs (fixes mixed content vs https://your-app).
+#
+# 1. DNS: A/AAAA record for MINIO_API_HOST → your VPS.
+# 2. TLS: obtain cert for MINIO_API_HOST (e.g. certbot --nginx).
+# 3. Replace MINIO_API_HOST and adjust upstream port if MINIO_API_PORT ≠ 19000.
+# 4. Set in .env (same hostname and scheme — no trailing slash):
+#       S3_PUBLIC_ENDPOINT_URL=https://MINIO_API_HOST
+#       MINIO_SERVER_URL=https://MINIO_API_HOST
+# 5. Recreate/be0 restart so presign matches this host.
+#
+# Optionally bind Docker’s MinIO publish to localhost only:
+#       "127.0.0.1:19000:9000"
+
+upstream minio_s3_api {
+    server 127.0.0.1:19000;
+    keepalive 32;
+}
+
+server {
+    listen 443 ssl http2;
+    server_name MINIO_API_HOST;
+
+    ssl_certificate     /fullchain.pem;
+    ssl_certificate_key /privkey.pem;
+
+    # Large evidence PDF uploads go through be0, not nginx→MinIO, but PUT via presign can be big.
+    client_max_body_size 50m;
+
+    # Disable buffering for streamed GETs if needed upstream.
+    proxy_buffering off;
+    proxy_request_buffering off;
+
+    location / {
+        proxy_http_version 1.1;
+        proxy_set_header Host $http_host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header Connection "";
+
+        proxy_connect_timeout 300;
+        proxy_send_timeout    300;
+        proxy_read_timeout    300;
+
+        proxy_pass http://minio_s3_api;
+    }
+}