Build Compound Engineering plugin dist before its tests

dist-freshness.test.ts reads the plugin's compiled dist/settings.js and
dist/session/orchestrator.js to guard against stale dist (FN-6596), but the
plugin had no pretest build and was missing from ensure-test-artifacts.mjs.
On a fresh CI checkout dist/ does not exist, so the guard threw "dist/ is
missing" — failing the non-blocking Full Suite on every main commit.

Register the plugin's required artifacts in ensure-test-artifacts.mjs and add
a `pretest` hook that builds them, matching the dependency-graph / hermes /
openclaw plugins. Verified locally: with dist/ absent, `pnpm --filter
@fusion-plugin-examples/compound-engineering test` now builds dist via the
pretest and all 192 plugin tests pass (incl. the two dist-freshness cases).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.changeset/fix-compound-engineering-dist-freshness.md

@@ -0,0 +1,5 @@
+---
+"@runfusion/fusion": patch
+---
+
+Fix the persistent non-blocking Full Suite failure caused by the Compound Engineering plugin's `dist-freshness.test.ts`. The test reads the plugin's compiled `dist/settings.js` and `dist/session/orchestrator.js`, but the plugin had no `pretest` build and was absent from `ensure-test-artifacts.mjs`, so on a fresh checkout `dist/` did not exist and the freshness guard threw "dist/ is missing — run pnpm build first". Register the plugin's required artifacts in `ensure-test-artifacts.mjs` and add a `pretest` hook that builds them, matching the other bundled plugins.

plugins/fusion-plugin-compound-engineering/package.json

@@ -16,6 +16,7 @@
   },
   "scripts": {
     "build": "tsc && node scripts/copy-css.mjs",
+    "pretest": "node ../../scripts/ensure-test-artifacts.mjs",
     "test": "vitest run --silent=passed-only --reporter=dot"
   },
   "dependencies": {

scripts/ensure-test-artifacts.mjs

@@ -63,6 +63,18 @@ export const REQUIRED_BUILD_PACKAGES = [
     requiredArtifacts: ["plugins/fusion-plugin-paperclip-runtime/dist/index.js"],
     staleAgainstGlobs: [{ sourcePath: "plugins/fusion-plugin-paperclip-runtime/src" }],
   },
+  {
+    // dist-freshness.test.ts reads the compiled settings + orchestrator to guard
+    // against stale dist (FN-6596). dist/ is build output, so a fresh CI checkout
+    // must build the plugin before its tests run or the guard throws "dist/ is
+    // missing". Build these artifacts up front like the other bundled plugins.
+    name: "@fusion-plugin-examples/compound-engineering",
+    requiredArtifacts: [
+      "plugins/fusion-plugin-compound-engineering/dist/settings.js",
+      "plugins/fusion-plugin-compound-engineering/dist/session/orchestrator.js",
+    ],
+    staleAgainstGlobs: [{ sourcePath: "plugins/fusion-plugin-compound-engineering/src" }],
+  },
 ];
 
 // ---------------------------------------------------------------------------