fix(ci): tolerate partial kuri build failure (quickjs-ng linux issue)

kuri-fetch depends on quickjs-ng which has a Zig compiler TODO on
linux-x86_64. Allow the build to partially fail but verify kuri and
merjs-e2e binaries exist before proceeding with E2E tests.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: justrach

.github/workflows/ci.yml

@@ -37,9 +37,15 @@ jobs:
           zig build codegen
           zig build
 
-      - name: Build kuri (includes merjs-e2e binary)
+      - name: Build kuri + merjs-e2e
         working-directory: kuri
-        run: zig build
+        run: |
+          # Build all targets; kuri-fetch may fail on linux due to quickjs-ng
+          # but kuri + merjs-e2e should succeed.
+          zig build 2>&1 || true
+          # Verify the binaries we need exist
+          test -f zig-out/bin/kuri || { echo "ERROR: kuri binary not built"; exit 1; }
+          test -f zig-out/bin/merjs-e2e || { echo "ERROR: merjs-e2e binary not built"; exit 1; }
 
       # ── Start Chrome (headless) ───────────────────────────────────────
       - name: Install Chromium