fix(container): correct port references — 9000/9999→7700 and add SSE port 7703

manifest.toml: APP_PORT and listen_tcp were using stale port 9000 from an
earlier design; corrected to 7700 (REST) with all four ports (7700-7703).
Containerfile run-example comments were missing SSE port 7703.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: hyperpolymath

container/Containerfile

@@ -8,10 +8,10 @@
 #   podman build -t boj-server:latest -f container/Containerfile .
 #
 # Run:
-#   podman run -p 7700:7700 -p 7701:7701 -p 7702:7702 boj-server:latest
+#   podman run -p 7700:7700 -p 7701:7701 -p 7702:7702 -p 7703:7703 boj-server:latest
 #
 # Run with persistent volume:
-#   podman run -p 7700:7700 -p 7701:7701 -p 7702:7702 \
+#   podman run -p 7700:7700 -p 7701:7701 -p 7702:7702 -p 7703:7703 \
 #     -v boj-server-data:/data boj-server:latest
 
 # ============================================================================

container/manifest.toml

@@ -32,7 +32,7 @@ system = "podman"
 
 [build.environment]
 APP_HOST = "[::]"
-APP_PORT = "9000"
+APP_PORT = "7700"
 
 [outputs]
 primary = "boj-server"
@@ -54,7 +54,7 @@ drop = ["ALL"]
 add = ["NET_BIND_SERVICE"]
 
 [security.network]
-listen_tcp = [9000]
+listen_tcp = [7700, 7701, 7702, 7703]
 
 [security.filesystem]
 read = ["/app/", "/data/"]