* ⚡ Build the frontend bundle once for all E2E suites
Merge tests-integration, tests-composable-suite and tests-plugin-api-suite
into one "CI: E2E" workflow. Each of the three ran its own full
frontend/scripts/build on every PR, so one PR paid the build three times.
The new build-bundle job restores actions/cache key frontend-bundle-<sha>,
runs frontend/scripts/build only on a miss and saves the key before the
job ends. The integration shards, the composable suite and the mocked
Plugin API suite now all need build-bundle and restore the same key with
fail-on-cache-miss, so none of them builds. A workflow re-run of the same
SHA reuses the cached bundle instead of rebuilding it.
Triggers become the union of the previous paths (frontend, common,
render-wasm, plugins): the bundle embeds the built plugins, so a plugins
change runs the whole set. workflow_dispatch keeps running the
integration job only, as before.
Job names are kept identical on purpose: they are the GitHub check
contexts and branch protection may match them by name.
Docs: new mem:frontend/e2e-ci-workflow records the build-once contract,
referenced from mem:frontend/core and mem:frontend/testing; the composable
memory and both suite READMEs are updated.
AI-assisted-by: deepseek-v4.1-flash
* 🐛 Fix mocked plugin suites crashing without frontend deps
The mocked CI drivers shelled out to frontend/scripts/e2e-server.js,
which imports express from frontend/node_modules. CI jobs install
only plugins/ deps, so the import failed with ERR_MODULE_NOT_FOUND
and the run timed out waiting for localhost:3000.
Serve the prebuilt bundle with a zero-dependency static server
built into each driver (ci/static-server.ts, kept in sync in both
suites) plus node:test coverage for it.
AI-assisted-by: muse-spark-1.3-contributor
