packaging: ship render worker on Linux, ffmpeg_bridge.dll on Windows

- Linux: olive-render-worker had no install rule, so it was missing
  from the AppImage, deb, rpm and Arch packages even though
  RenderWorkerPool spawns it from applicationDirPath(); install it next
  to oak-editor (verified: RPATH resolution of libffmpeg_bridge works
  for editor, worker and liboakgl from the installed layout)
- Windows: ffmpeg_bridge.dll is built outside app/ and is invisible to
  the ntldd dependency walk, so the NSIS installer shipped without it
  (and without the av*.dll it pulls in); copy it explicitly and include
  it in the dependency loop
- AppImage verification now also checks oak-render-worker, liboakgl.so,
  libffmpeg_bridge.so and ldd resolution of all shipped binaries

.github/workflows/cd.yml

@@ -64,10 +64,13 @@ jobs:
           if [ -f build/app/oakvulkan.dll ]; then
             cp build/app/oakvulkan.dll app/packaging/windows/nsis/oak-editor/
           fi
+          # The FFmpeg bridge DLL is built outside app/ and is not reachable
+          # via PATH, so ntldd cannot discover it from the executables alone
+          cp build/ffmpeg_bridge/bin/ffmpeg_bridge.dll app/packaging/windows/nsis/oak-editor/
           windeployqt6 app/packaging/windows/nsis/oak-editor/oak-editor.exe
           # Copy all non-Qt MSYS2 DLLs recursively for every binary we ship
           cd app/packaging/windows/nsis/oak-editor
-          for binary in oak-editor.exe oak-render-worker.exe oakgl.dll oakvulkan.dll; do
+          for binary in oak-editor.exe oak-render-worker.exe oakgl.dll oakvulkan.dll ffmpeg_bridge.dll; do
             [ -f "$binary" ] || continue
             for l in $(ntldd -R "$binary" | grep -E 'mingw64|ucrt64|clang64' | sed 's/^[ \t]*//' | cut -d' ' -f3); do
               cp -v "$l" .
@@ -350,6 +353,15 @@ jobs:
           ls AppDir/usr/lib/libOpenColorIO.so*    || (echo "Missing libOpenColorIO" && exit 1)
           ls AppDir/usr/lib/libportaudio.so*      || (echo "Missing libportaudio" && exit 1)
           ls AppDir/usr/lib/libOpenEXR*.so*       || (echo "Missing libOpenEXR" && exit 1)
+          # Ensure Oak's own binaries and shared libraries are present
+          ls AppDir/usr/bin/oak-editor                       || (echo "Missing oak-editor" && exit 1)
+          ls AppDir/usr/bin/oak-render-worker                || (echo "Missing oak-render-worker" && exit 1)
+          ls AppDir/usr/lib/liboakgl.so                      || (echo "Missing liboakgl.so" && exit 1)
+          ls AppDir/usr/ffmpeg_bridge/bin/libffmpeg_bridge.so || (echo "Missing libffmpeg_bridge.so" && exit 1)
+          # Ensure every shipped binary resolves all of its dependencies
+          ! ldd AppDir/usr/bin/oak-editor | grep "not found"
+          ! ldd AppDir/usr/bin/oak-render-worker | grep "not found"
+          ! ldd AppDir/usr/lib/liboakgl.so | grep "not found"
 
       - name: Upload artifact
         uses: actions/upload-artifact@v4

app/CMakeLists.txt

@@ -331,7 +331,9 @@ elseif (APPLE)
     endif ()
 elseif (UNIX)
     # Set Linux-specific properties for application
-    install(TARGETS olive-editor RUNTIME DESTINATION bin)
+    # The render worker must ship next to oak-editor: RenderWorkerPool spawns
+    # it from QCoreApplication::applicationDirPath()
+    install(TARGETS olive-editor olive-render-worker RUNTIME DESTINATION bin)
 endif ()
 
 # Set link libraries