Update Path Validation

Author: rcosta358

src/main/java/liquidjava/mcp/tools/context/ContextRequest.java

@@ -7,7 +7,7 @@
 
 public record ContextRequest(String path, String file, Integer line, Integer column) {
     public ContextRequest {
-        Path verificationPath = PathUtils.requireExisting(path);
+        Path verificationPath = PathUtils.requireExistingSource(path);
         path = verificationPath.toString();
 
         if (file != null) {

src/main/java/liquidjava/mcp/tools/verification/VerifyRequest.java

@@ -1,15 +1,11 @@
 package liquidjava.mcp.tools.verification;
 
-import java.nio.file.Files;
-import java.nio.file.Path;
 import java.util.Map;
 import liquidjava.mcp.utils.PathUtils;
 
 public record VerifyRequest(String path, boolean debug) {
     public VerifyRequest {
-        Path source = PathUtils.requireExisting(path);
-        if (!Files.isDirectory(source) && !PathUtils.isJavaSourceFile(source))
-            throw new IllegalArgumentException("path must be a Java source file or directory");
+        PathUtils.requireExistingSource(path);
     }
 
     public static VerifyRequest fromArguments(Map<String, Object> arguments) {

src/main/java/liquidjava/mcp/utils/PathUtils.java

@@ -38,6 +38,13 @@ public static Path requireExistingJavaFile(String value, String name) {
         return source;
     }
 
+    public static Path requireExistingSource(String value) {
+        Path source = requireExisting(value);
+        if (!Files.isDirectory(source) && !isJavaSourceFile(source))
+            throw new IllegalArgumentException("path must be a Java source file or directory");
+        return source;
+    }
+
     public static boolean isJavaSourceFile(Path path) {
         return path != null && Files.isRegularFile(path) && path.getFileName().toString().endsWith(".java");
     }