ci(mobile): build matrix-mt prebuilt for android+ios alongside the st one

test-android-sample.yml and test-ios-sample.yml only built
@cpp.js/sample-lib-prebuilt-matrix (st), but `pnpm -r e2e:android`/
`pnpm run e2e:ios` recurse into every workspace and also run the e2e
test for @cpp.js/sample-mobile-reactnative-cli-multithread. That mt
sample's native.cpp does `#include <Matrix.h>`, which resolves via
cppjs deps to matrix-mt's dist/prebuilt/<target>/include — never
produced because the filter didn't match the -multithread package.

Symptom on the last v2-new-samples Android run:
  cppjs-sample-mobile-reactnative-cli-multithread/src/native/native.cpp:2:10:
  fatal error: 'Matrix.h' file not found
  > Task :cpp.js_plugin-react-native:buildCMakeRelWithDebInfo[arm64-v8a] FAILED

Switch the filter to a glob so pnpm picks up both:
  --filter=@cpp.js/sample-lib-prebuilt-matrix
  → --filter='@cpp.js/sample-lib-prebuilt-matrix*'

Verified locally — `pnpm --filter='@cpp.js/sample-lib-prebuilt-matrix*' list`
returns the st and mt packages. Both have build:android / build:ios scripts
already (the cmake/source siblings have neither because they're inline libs).

Author: erenkucuker

.github/workflows/test-android-sample.yml

@@ -41,8 +41,14 @@ jobs:
           cache: 'pnpm'
       - name: Install dependencies
         run: pnpm install
-      - name: Build cppjs-sample-lib-prebuilt-matrix
-        run: pnpm --filter=@cpp.js/sample-lib-prebuilt-matrix run build:android
+      - name: Build cppjs-sample-lib-prebuilt-matrix (st + mt)
+        # Glob picks up both @cpp.js/sample-lib-prebuilt-matrix and the
+        # -multithread variant. The mt sample-mobile-reactnative-cli's
+        # native.cpp does `#include <Matrix.h>` which resolves to the
+        # prebuilt artifacts under matrix-mt's dist/prebuilt/<target>/
+        # — without this build the e2e:android step fails for the mt
+        # sample with "fatal error: 'Matrix.h' file not found".
+        run: pnpm --filter='@cpp.js/sample-lib-prebuilt-matrix*' run build:android
 
       - name: Install Maestro
         run: |

.github/workflows/test-ios-sample.yml

@@ -75,8 +75,11 @@ jobs:
           echo "$HOME/.maestro/bin" >> $GITHUB_PATH
       - name: Restore cached bridge files
         run: cp -r ./cppjs-samples/cppjs-sample-mobile-reactnative-cli/ci/.cppjs ./cppjs-samples/cppjs-sample-mobile-reactnative-cli
-      - name: Build cppjs-sample-lib-prebuilt-matrix
-        run: pnpm --filter=@cpp.js/sample-lib-prebuilt-matrix run build:ios
+      - name: Build cppjs-sample-lib-prebuilt-matrix (st + mt)
+        # Same fix as test-android-sample.yml: glob also matches the
+        # -multithread variant so the mt mobile sample's <Matrix.h>
+        # resolves at native compile.
+        run: pnpm --filter='@cpp.js/sample-lib-prebuilt-matrix*' run build:ios
       - name: Pod install
         run: cd cppjs-samples/cppjs-sample-mobile-reactnative-cli/ios && pod install && cd ../../../
       - name: E2E IOS