fix(ci): Include sample app and perf test changes in step-level platform gates

The step-level platform-check in sample-application, sample-application-expo,
and e2e-v2 workflows gated on needs_ios/needs_android, which only track SDK
source and native code changes. When only sample app or performance test files
changed, the job-level condition correctly triggered (via needs_sample_react_native,
needs_sample_expo), but every platform step was skipped — runners allocated,
zero meaningful work done, false green reported.

Fix by checking sample_react_native/sample_expo/perf_tests as the first
condition in each platform-check step. If the relevant files changed, all
platforms proceed without skipping.

Affected workflows:
- sample-application.yml: build and test jobs (sample_react_native)
- sample-application-expo.yml: build job (sample_expo)
- e2e-v2.yml: metrics job (perf_tests)

Author: alwx

.github/workflows/e2e-v2.yml

@@ -65,7 +65,15 @@ jobs:
       - name: Check if platform is needed
         id: platform-check
         run: |
-          if [[ "${{ matrix.platform }}" == "ios" && "${{ needs.detect-changes.outputs.needs_ios }}" != "true" ]]; then
+          # Performance test changes should always run metrics (that's the
+          # whole point). The needs_ios/needs_android flags only track SDK
+          # source & native code — not performance-tests/** files.
+          PERF_CHANGED="${{ needs.detect-changes.outputs.perf_tests }}"
+
+          if [[ "$PERF_CHANGED" == "true" ]]; then
+            echo "skip=false" >> "$GITHUB_OUTPUT"
+            echo "Performance tests changed — running metrics for ${{ matrix.platform }}."
+          elif [[ "${{ matrix.platform }}" == "ios" && "${{ needs.detect-changes.outputs.needs_ios }}" != "true" ]]; then
             echo "skip=true" >> "$GITHUB_OUTPUT"
             echo "Skipping iOS — no relevant changes detected."
           elif [[ "${{ matrix.platform }}" == "android" && "${{ needs.detect-changes.outputs.needs_android }}" != "true" ]]; then

.github/workflows/sample-application-expo.yml

@@ -62,7 +62,12 @@ jobs:
       - name: Check if platform is needed
         id: platform-check
         run: |
-          if [[ "${{ matrix.platform }}" == "ios" && "${{ needs.detect-changes.outputs.needs_ios }}" != "true" ]]; then
+          SAMPLE_CHANGED="${{ needs.detect-changes.outputs.sample_expo }}"
+
+          if [[ "$SAMPLE_CHANGED" == "true" ]]; then
+            echo "skip=false" >> "$GITHUB_OUTPUT"
+            echo "Sample app changed — building ${{ matrix.platform }}."
+          elif [[ "${{ matrix.platform }}" == "ios" && "${{ needs.detect-changes.outputs.needs_ios }}" != "true" ]]; then
             echo "skip=true" >> "$GITHUB_OUTPUT"
             echo "Skipping iOS — no relevant changes detected."
           elif [[ "${{ matrix.platform }}" == "android" && "${{ needs.detect-changes.outputs.needs_android }}" != "true" ]]; then

.github/workflows/sample-application.yml

@@ -77,7 +77,15 @@ jobs:
       - name: Check if platform is needed
         id: platform-check
         run: |
-          if [[ "${{ matrix.platform }}" == "ios" && "${{ needs.detect-changes.outputs.needs_ios }}" != "true" ]]; then
+          # Sample app changes should always build all platforms (that's the
+          # whole point of this workflow).  The needs_ios/needs_android flags
+          # only track SDK source & native code — not sample app files.
+          SAMPLE_CHANGED="${{ needs.detect-changes.outputs.sample_react_native }}"
+
+          if [[ "$SAMPLE_CHANGED" == "true" ]]; then
+            echo "skip=false" >> "$GITHUB_OUTPUT"
+            echo "Sample app changed — building ${{ matrix.platform }}."
+          elif [[ "${{ matrix.platform }}" == "ios" && "${{ needs.detect-changes.outputs.needs_ios }}" != "true" ]]; then
             echo "skip=true" >> "$GITHUB_OUTPUT"
             echo "Skipping iOS — no relevant changes detected."
           elif [[ "${{ matrix.platform }}" == "macos" && "${{ needs.detect-changes.outputs.needs_ios }}" != "true" ]]; then
@@ -259,7 +267,12 @@ jobs:
       - name: Check if platform is needed
         id: platform-check
         run: |
-          if [[ "${{ matrix.platform }}" == "ios" && "${{ needs.detect-changes.outputs.needs_ios }}" != "true" ]]; then
+          SAMPLE_CHANGED="${{ needs.detect-changes.outputs.sample_react_native }}"
+
+          if [[ "$SAMPLE_CHANGED" == "true" ]]; then
+            echo "skip=false" >> "$GITHUB_OUTPUT"
+            echo "Sample app changed — testing ${{ matrix.platform }}."
+          elif [[ "${{ matrix.platform }}" == "ios" && "${{ needs.detect-changes.outputs.needs_ios }}" != "true" ]]; then
             echo "skip=true" >> "$GITHUB_OUTPUT"
             echo "Skipping iOS — no relevant changes detected."
           elif [[ "${{ matrix.platform }}" == "android" && "${{ needs.detect-changes.outputs.needs_android }}" != "true" ]]; then