Address PR review: avoid abbreviations, use imports

- Rename 'ctx' to 'context' in DefaultProjectBuilder
- Use short form 'ModelProblem' instead of FQCN in test

Addresses review comments from elharo on PR #11505.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: ascheman

impl/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java

@@ -721,12 +721,15 @@ private void initProject(MavenProject project, ModelBuilderResult result) {
                         isModularProject);
 
                 // Handle main and test resources using shared method
-                ResourceHandlingContext ctx =
+                ResourceHandlingContext context =
                         new ResourceHandlingContext(project, baseDir, modules, isModularProject, result);
                 handleResourceConfiguration(
-                        ctx, project.getBuild().getDelegate().getResources(), hasMainResources, ProjectScope.MAIN);
+                        context, project.getBuild().getDelegate().getResources(), hasMainResources, ProjectScope.MAIN);
                 handleResourceConfiguration(
-                        ctx, project.getBuild().getDelegate().getTestResources(), hasTestResources, ProjectScope.TEST);
+                        context,
+                        project.getBuild().getDelegate().getTestResources(),
+                        hasTestResources,
+                        ProjectScope.TEST);
             }
 
             project.setActiveProfiles(

impl/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java

@@ -441,8 +441,8 @@ void testModularSourcesWithExplicitResourcesIssuesWarning() throws Exception {
         MavenProject project = result.getProject();
 
         // Verify warnings are issued for ignored legacy resources
-        List<org.apache.maven.model.building.ModelProblem> warnings = result.getProblems().stream()
-                .filter(p -> p.getSeverity() == org.apache.maven.model.building.ModelProblem.Severity.WARNING)
+        List<ModelProblem> warnings = result.getProblems().stream()
+                .filter(p -> p.getSeverity() == ModelProblem.Severity.WARNING)
                 .filter(p -> p.getMessage().contains("Legacy") && p.getMessage().contains("ignored"))
                 .collect(Collectors.toList());