chore(deps): pin dependencies

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:24-trixie
+FROM node:24-trixie@sha256:f072159a6b98a624e09f2c4815fe473217fc019a97524fd593059c8a4ad5a05d
 
 ENV NPM_CONFIG_UPDATE_NOTIFIER=false \
   NPM_CONFIG_LOGLEVEL=warn \
@@ -17,7 +17,7 @@ RUN apt-get update && \
     chown -R 1000:1000 /usr/local/lib/node_modules/n2-soul/
 
 COPY --chmod=755 opencode-attach /usr/local/bin/opencode-attach
-COPY --from=registry.k8s.io/kubectl:v1.36.1 /bin/kubectl /usr/local/bin/kubectl
+COPY --from=registry.k8s.io/kubectl:v1.36.1@sha256:d08f476d04d0e30f426f06bc6ff6c38913aaa4591943046b77e2f74a72d3611c /bin/kubectl /usr/local/bin/kubectl
 
 USER opencode
 WORKDIR /home/opencode