Fix test.yml: build + stage sidecar before Tauri shell tests

The Tauri build script validates sidecar resource paths even during
cargo test. Build and stage the openhuman binary so Tauri shell tests
can run, catching real integration issues early.

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

Author: CodeGhost21

.github/workflows/test.yml

@@ -101,6 +101,15 @@ jobs:
       - name: Test core crate (openhuman)
         run: cargo test -p openhuman
 
+      - name: Build sidecar core binary
+        run: cargo build --manifest-path Cargo.toml --release --target x86_64-unknown-linux-gnu --bin openhuman
+
+      - name: Stage sidecar for Tauri shell tests
+        run: |
+          mkdir -p app/src-tauri/binaries
+          cp target/x86_64-unknown-linux-gnu/release/openhuman app/src-tauri/binaries/openhuman-x86_64-unknown-linux-gnu
+          chmod +x app/src-tauri/binaries/openhuman-x86_64-unknown-linux-gnu
+
       - name: Test Tauri shell (OpenHuman)
         run: cargo test --manifest-path app/src-tauri/Cargo.toml