fix: bump opencode submodule — make Server.listen() sync for upstream compat

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

Author: pRizz

packages/core/src/docker/Dockerfile

@@ -525,7 +525,7 @@ COPY --chown=opencoder:opencoder packages/opencode /tmp/opencode-local
 # Update it by running: ./scripts/update-opencode-commit.sh
 RUN set -eux; \
     OPENCODE_COMMIT_OVERRIDE="${OPENCODE_COMMIT:-}"; \
-    OPENCODE_COMMIT="36c93e33b513e869d8e4fb9eb64a35fa0af6cdac"; \
+    OPENCODE_COMMIT="f79a1ebff3640e76e9bce467b8b1b6f05668b36c"; \
     if [ -n "${OPENCODE_COMMIT_OVERRIDE}" ]; then OPENCODE_COMMIT="${OPENCODE_COMMIT_OVERRIDE}"; fi; \
     rm -rf /tmp/opencode-repo; \
     if [ "${OPENCODE_SOURCE}" = "local" ]; then \