Enable Spotless verification for Android Port and consolidate reporting

- Added `spotless-maven-plugin` to `maven/android/pom.xml` configured for `Ports/Android/src`.
- Updated `scripts/build-android-port.sh` to run `spotless:check` with verbose logging and capture results to a report file.
- Modified `scripts/lib/cn1ss.sh` and `scripts/run-android-instrumentation-tests.sh` to append the Spotless report to the main Android status comment.
- Updated `scripts/run-android-instrumentation-tests.sh` to fail the build if Spotless checks failed, after reporting is complete.
- Updated `.github/workflows/scripts-android.yml` and reporting scripts to suppress noisy "missing report" warnings and correctly collect test artifacts.

Author: google-labs-jules[bot]

maven/android/pom.xml

@@ -41,9 +41,10 @@
                 <artifactId>spotless-maven-plugin</artifactId>
                 <version>2.43.0</version>
                 <configuration>
+                    <baseDir>${project.basedir}/../../Ports/Android/src</baseDir>
                     <java>
                         <includes>
-                            <include>${project.basedir}/../../Ports/Android/src/**/*.java</include>
+                            <include>**/*.java</include>
                         </includes>
                         <googleJavaFormat>
                             <version>1.17.0</version>
@@ -303,4 +304,4 @@
         </profile>
     </profiles>
 
-</project>
+</project>