Opencode V2 sbx agent

sbxenv.yaml

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+schemaVersion: "1"
+name: opencodev2
+agent: opencode
+
+# Mount this project directory into the sandbox as the primary workspace.
+workspace: .
+
+env: {}
+
+# Use the image built by `make image` instead of Docker's stock opencode
+# template, so the sandbox runs the OpenCode CLI version pinned in ./Dockerfile
+# rather than whatever version Docker last baked into docker/sandbox-templates:opencode.
+sandboxOptions:
+  template: opencode-v2:local
+#   memory: 8g
+#   cpus: 4
+
+# Provider credentials are stored on the host (outside this file) with the
+# sbx CLI, not here. Run one of these once before `make run`:
+#   sbx secret set anthropic
+#   sbx secret set openai
+#   sbx secret set google
+#   sbx secret set openrouter
+#   sbx secret set github --command 'gh auth token'   # for PRs/repo access
+#
+# OpenCode Zen or another custom API key:
+#   sbx secret set-custom --host opencode.ai --env OPENCODE_API_KEY --value "$OPENCODE_API_KEY"
+#   sbx policy allow network opencode.ai:443
+
+# Uncomment to expose a port the agent starts inside the sandbox (e.g. a dev
+# server) on the host:
+# ports:
+#   - sandbox: 3000
+#     host: 3000
+#     protocol: tcp4
+
+# lifecycle.* commands (initialize/postCreate/preRemove) run on the HOST, not
+# inside the sandbox, so they're for preparing the workspace on disk (cloning
+# repos, host-side `npm install` into a mounted dir) — not for changing tools
+# installed inside the sandbox. Use ./Dockerfile + sandboxOptions.template for
+# that instead.
+# lifecycle:
+#   postCreate:
+#     - command: npm install
+#       workdir: .