Add checkstyle rule to prevent string resource access via Application context

AGP 8.8+ generateLocaleConfig causes incorrect locale-based resource
resolution when using Application context. This rule flags
WordPress.getContext().getString() and directs developers to use
Activity/Fragment context or injected ResourceProvider instead.

Also removes the one existing usage in ReaderPostTable by hardcoding
the string, since it was embedded in HTML stored in SQLite and would
never update on locale change anyway.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: nbradbury

WordPress/src/main/java/org/wordpress/android/datasets/ReaderPostTable.java

@@ -11,8 +11,6 @@
 import androidx.annotation.Nullable;
 
 import org.greenrobot.eventbus.EventBus;
-import org.wordpress.android.R;
-import org.wordpress.android.WordPress;
 import org.wordpress.android.models.ReaderCardType;
 import org.wordpress.android.models.ReaderPost;
 import org.wordpress.android.models.ReaderPostList;
@@ -844,7 +842,7 @@ private static String maxText(final ReaderPost post) {
             return "<p>" + post.getExcerpt() + "</p>"
                    + String.format("<p style='text-align:center'><a href='%s'>%s</a></p>",
                     post.getUrl(),
-                    WordPress.getContext().getString(R.string.reader_label_view_original));
+                    "View original article");
         } else {
             AppLog.w(AppLog.T.READER, "reader post table > max text exceeded, storing truncated text");
             return post.getText().substring(0, MAX_TEXT_LEN);

config/checkstyle.xml

@@ -119,6 +119,19 @@
       <property name="severity" value="error"/>
     </module>
 
+    <!-- Specific to WordPress -->
+    <!-- WordPress.getContext() must not be used for string resource access. -->
+    <!-- AGP 8.8+ generateLocaleConfig causes incorrect resource resolution -->
+    <!-- with Application context. Use Activity/Fragment context, or -->
+    <!-- injected ResourceProvider instead. -->
+    <module name="RegexpSingleline">
+      <property name="format"
+                value="WordPress\.getContext\(\)\.getString\((?!.*checkstyle ignore)"/>
+      <property name="message"
+                value="Do not use WordPress.getContext().getString(). Use Activity/Fragment context or injected ResourceProvider instead."/>
+      <property name="severity" value="error"/>
+    </module>
+
     <module name="LineLength">
         <property name="fileExtensions" value="java"/>
         <!-- what is a good max value? -->