fix(ci): build before unit tests in release workflow (#1463)

The release workflow ran `bun test` before `bun run build`, but the
bundle regression tests in scripts/missing-module-stub.test.ts read the
shipped dist/cli.mjs. On a fresh release-tag checkout dist/ (gitignored)
does not exist yet, so both tests threw "dist/cli.mjs not found" and
failed the npm publish job. pr-checks.yml already builds first (via
`bun run smoke`); reorder release.yml to match.

Co-authored-by: OpenClaude <openclaude@gitlawb.com>

.github/workflows/release.yml

@@ -59,15 +59,15 @@ jobs:
       - name: Install dependencies
         run: bun install --frozen-lockfile
 
+      - name: Build
+        run: bun run build
+
       - name: Run unit tests
         run: bun test --max-concurrency=1
 
       - name: Smoke test
         run: bun run smoke
 
-      - name: Build
-        run: bun run build
-
       - name: Dry-run package
         run: npm pack --dry-run