feat: integrate Statime PTP daemon into Dockerfile and docker-compose

Co-authored-by: aider (openai/gpt-5) <aider@aider.chat>

docker-compose.yml

@@ -26,3 +26,23 @@ services:
     devices:
       - "/dev/ptp0:/dev/ptp0"
     restart: "no"
+
+  # PTP daemon using Statime (software PTP inside the container)
+  # Note: On macOS with Docker Desktop, low-level PTP networking features are limited.
+  # This service is most effective on a Linux host. Still useful for dev/testing.
+  statime:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: ntp_timeturner:latest
+    container_name: statime
+    cap_add:
+      - NET_ADMIN
+      - NET_RAW
+      - SYS_TIME
+    command: ["statime", "-i", "eth0"]
+    # Expose standard PTP ports (udp/319, udp/320)
+    ports:
+      - "319:319/udp"
+      - "320:320/udp"
+    restart: unless-stopped