Add CI integration test for offckb create command

[Copilot]

Adds integration test to verify the complete offckb create workflow (create → build → deploy) works correctly on all CI platforms.

Changes

• scripts/create-test.sh: New bash script that:

  • Starts devnet node and waits for RPC readiness
  • Creates test project with --no-interactive --no-git --no-install flags
  • Verifies essential files (package.json, contracts, tests, deployment configs)
  • Installs dependencies explicitly for deterministic behavior
  • Builds and deploys project to running devnet
  • Validates deployment artifacts and runs mock tests
  • Cleanup via trap handlers (stops node, removes temp files)

• .github/workflows/test.yml: Added integration test step after existing node start test

Test execution

# Creates unique test project in /tmp
pnpm start create "test-project-$$" \
  --no-interactive \
  --no-git \
  --no-install \
  -l typescript \
  -c hello-world

# Explicit dependency install for determinism
pnpm install --frozen-lockfile || pnpm install

# Verifies full workflow
pnpm run build
pnpm run deploy
pnpm run test -- hello-world.mock.test.ts

Pattern follows existing starting-node-test.sh. Runs on Ubuntu, Windows, macOS.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Add a ci test for offckb create</issue_title>
<issue_description>Currently there is a integration test in the test.yml ci which will start pnpm start node and then curl the JSON RPC to make sure the devent is successfully launching. A similar ci test is required to make sure the offckb create command works fine on main platforms.

Note that to test the complete function of offckb create, you need to check the command implementations. And for integration test, you need to start a devnet node first using pnpm start node in the background and then create the boilerplate project(you might want to pass yes option to jump the confirm input on terminal) and doing build and deploy command to make sure the full workflow is good.

The test should be a bash script under scripts folder, similar to the previous node starting test.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Add a ci test for offckb create #368

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