fix: correct demo asset location in CI smoke test

The smoke test was copying demo assets to release/demo/ but running the engine
from build/ directory. The engine's fs_basepath defaults to its working directory,
so it was looking for build/demo/ instead of release/demo/.

Changes:
- Update CI workflow to copy demo assets to build/demo/ instead of release/demo/
- Modify smoke test script to explicitly set fs_basepath to engine's directory
- This ensures the engine can find the demo assets during testing

The smoke test now correctly locates demo assets regardless of engine location.

Author: timfox

.github/workflows/ci.yml

@@ -281,8 +281,8 @@ jobs:
         run: |
           echo "Running 10-second smoke test..."
           cd build
-          # Copy demo assets for smoke test
-          cp -r ../mods/demo ../release/ 2>/dev/null || true
+          # Copy demo assets for smoke test (engine looks in its own directory)
+          cp -r ../mods/demo ./ 2>/dev/null || true
           # Run the smoke test
           ENGINE_BIN="./idtech3.x86_64" TIMEOUT=10 ../scripts/smoke_test.sh
 

scripts/smoke_test.sh

@@ -27,8 +27,15 @@ echo "⏱️  Timeout: ${TIMEOUT}s"
 LOG_FILE="/tmp/smoke_test_$(date +%s).log"
 echo "📝 Log: ${LOG_FILE}"
 
+# Set base path to directory containing the engine binary (should contain demo assets)
+ENGINE_DIR="$(dirname "${ENGINE_BIN}")"
+if [[ "${ENGINE_DIR}" == "." ]]; then
+    ENGINE_DIR="$(pwd)"
+fi
+
 set +e
 timeout "${TIMEOUT}s" "${ENGINE_BIN}" \
+    +set fs_basepath "${ENGINE_DIR}" \
     +set r_renderer opengl \
     +set fs_game demo \
     +set sv_pure 0 \