fix(ci): honor force-builds on test-only PR native-build gate

When reuse-main-builds-only is active, force-builds should compile fresh
instead of failing because no main artifact was found.

Co-authored-by: javiergarciavera <javiergarciavera@users.noreply.github.com>

Author: cursoragent

.github/guidelines/E2E_DECISION_TREE.md

@@ -34,7 +34,7 @@ The native build fingerprint for test-only PRs is computed from **`main` HEAD**
 
 This applies when all changed files match `e2e_test_files` or `e2e_ignorable` filters in `.github/rules/filter-rules.yml`, with at least one E2E test file changed, and no E2E-relevant workflow files were modified.
 
-Use the `force-builds` label or `[force-builds]` commit tag to override reuse and compile fresh builds.
+Use the `force-builds` label or `[force-builds]` commit tag to override reuse and compile fresh builds — including on test-only PRs that would otherwise require main-branch artifacts.
 
 ## E2E tests skipped by default on new PRs
 

.github/workflows/build-android-e2e.yml

@@ -310,7 +310,10 @@ jobs:
         id: gate
         run: |
           if [[ "${{ inputs.reuse-main-builds-only }}" == "true" ]]; then
-            if [[ "${{ steps.find-reusable-build.outputs.found }}" == "true" \
+            if [[ "${{ steps.force-builds.outputs.force }}" == "true" ]]; then
+              echo "needs-native-build=true" >> "$GITHUB_OUTPUT"
+              echo "force-builds override on test-only PR — compiling fresh native build."
+            elif [[ "${{ steps.find-reusable-build.outputs.found }}" == "true" \
                && "${{ steps.download-reusable-apk.outcome }}" == "success" \
                && "${{ steps.download-reusable-test-apk.outcome }}" == "success" ]]; then
               echo "needs-native-build=false" >> "$GITHUB_OUTPUT"

.github/workflows/build-ios-e2e.yml

@@ -245,7 +245,10 @@ jobs:
         id: gate
         run: |
           if [[ "${{ inputs.reuse-main-builds-only }}" == "true" ]]; then
-            if [[ "${{ steps.find-reusable-build.outputs.found }}" == "true" \
+            if [[ "${{ steps.force-builds.outputs.force }}" == "true" ]]; then
+              echo "needs-native-build=true" >> "$GITHUB_OUTPUT"
+              echo "force-builds override on test-only PR — compiling fresh native build."
+            elif [[ "${{ steps.find-reusable-build.outputs.found }}" == "true" \
                && "${{ steps.download-reusable-app.outcome }}" == "success" ]]; then
               echo "needs-native-build=false" >> "$GITHUB_OUTPUT"
               echo "Test-only PR: reusing main branch iOS artifacts from GitHub Actions (no repack)."