Fix release publish artifact download and per-job Gradle cache keys.

download-artifact accepts one glob pattern, not multiline lists; split platform and Android downloads. Scope Gradle build cache keys per job and use read-only setup-gradle on parallel jobs to avoid cache reservation races.

Co-authored-by: Cursor <cursoragent@cursor.com>

.github/actions/cache-gradle-build/action.yml

@@ -1,6 +1,11 @@
 name: Restore Gradle build directories
 description: Restore module build/ trees for faster CI Gradle jobs
 
+inputs:
+  scope:
+    description: Unique id for this job (part of the cache key; use restore-keys to reuse other scopes)
+    required: true
+
 outputs:
   cache-hit:
     description: Whether an exact cache key match was restored
@@ -21,6 +26,6 @@ runs:
           app/android/build
           utils/shared/build
           utils/android/build
-        key: gradle-build-${{ runner.os }}-${{ runner.arch }}-v1-${{ hashFiles('gradle/libs.versions.toml', 'settings.gradle.kts', 'gradle.properties', 'app/desktop/build.gradle.kts', 'app/desktop/proguard-rules.pro', 'app/shared/build.gradle.kts', 'app/android/build.gradle.kts', 'utils/shared/build.gradle.kts', 'utils/android/build.gradle.kts') }}
+        key: gradle-build-${{ runner.os }}-${{ runner.arch }}-v1-${{ inputs.scope }}-${{ hashFiles('gradle/libs.versions.toml', 'settings.gradle.kts', 'gradle.properties', 'app/desktop/build.gradle.kts', 'app/desktop/proguard-rules.pro', 'app/shared/build.gradle.kts', 'app/android/build.gradle.kts', 'utils/shared/build.gradle.kts', 'utils/android/build.gradle.kts') }}
         restore-keys: |
           gradle-build-${{ runner.os }}-${{ runner.arch }}-v1-

.github/actions/save-gradle-build-cache/action.yml

@@ -1,5 +1,5 @@
 name: Save Gradle build directories
-description: Save module build/ trees after a Gradle build (always runs, even on cache hit)
+description: Save module build/ trees after a Gradle build
 
 inputs:
   primary-key:
@@ -10,6 +10,7 @@ runs:
   using: composite
   steps:
     - uses: actions/cache/save@v5
+      continue-on-error: true
       with:
         key: ${{ inputs.primary-key }}
         path: |

.github/actions/setup-java-gradle/action.yml

@@ -6,6 +6,10 @@ inputs:
     description: Optional JDK architecture (x64). Omit for host default.
     required: false
     default: ""
+  cache-read-only:
+    description: Restore Gradle User Home only; do not save (avoids parallel cache write races).
+    required: false
+    default: "false"
 
 runs:
   using: composite
@@ -19,6 +23,6 @@ runs:
     - uses: gradle/actions/setup-gradle@v5
       with:
         gradle-version: wrapper
-        cache-read-only: false
+        cache-read-only: ${{ inputs.cache-read-only == 'true' }}
         cache-overwrite-existing: true
         add-job-summary: on-failure