merge main and fix CI: add plugin build step to pr-checks workflow

Merges origin/main to bring in the droid runtime plugin (needed by
plugin-loader test) and all recent changes. Adds a "Build plugins"
step to pr-checks.yml so plugin dist/ directories are compiled before
tests run — fixes ERR_MODULE_NOT_FOUND for hermes and droid plugins.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/pr-checks.yml

@@ -32,11 +32,14 @@ jobs:
       - name: Install Bun
         uses: oven-sh/setup-bun@v2
 
+      - name: Build plugins
+        run: pnpm -r --filter './plugins/**' build
+
       - name: Lint
         run: pnpm lint
 
       - name: Typecheck
         run: pnpm typecheck
 
-      - name: Test
-        run: pnpm test
+      - name: Test (full suite)
+        run: pnpm test:full