Add Docker support and configuration for SRS SIP

- Created a new README_cross.md file with Docker build instructions.
- Updated srs.conf to include logging configuration options.
- Added docker-compose.yml to define the SRS SIP service with necessary ports and volume mappings.
- Introduced config.yaml for general and GB28181-specific configurations.
- Added initial srs.conf with settings for RTMP, HTTP API, and WebRTC support.

docker-compose.yml

@@ -0,0 +1,30 @@
+services:
+  srs-sip:
+    build:
+      context: .
+      network: host
+      args:
+        HTTP_PROXY: ${HTTP_PROXY:-}
+        NO_PROXY: "localhost,127.0.0.1,::1"
+    environment:
+      # CANDIDATE: ${CANDIDATE:-}
+      CANDIDATE: 192.168.2.184
+      TZ: "Asia/Shanghai"
+    volumes:
+      - ./run/conf/config.yaml:/usr/local/srs-sip/config.yaml:ro
+      - ./run/logs:/usr/local/srs-sip/logs
+      - ./run/srs/conf/srs.conf:/usr/local/srs/conf/srs.conf:ro
+      - ./run/srs/logs:/var/log/srs/
+    ports:
+      # SRS RTMP
+      - "1985:1985"
+      # SRS media ingest (GB28181 RTP/PS 等，取决于你的配置)
+      - "9000:9000"
+      # SRS WebRTC
+      - "8000:8000/udp"
+      # SIP
+      - "5060:5060"
+      - "5060:5060/udp"
+      # WebUI
+      - "8025:8025"
+    restart: unless-stopped