Implement proper exception hierarchy and consistent error handling

- Create base exception classes:
  - VSSimulatorException: Base checked exception for all simulator errors
  - VSSimulatorRuntimeException: Base unchecked exception for unrecoverable errors
- Refactor existing exceptions to extend from base class:
  - VSEventNotCopyableException: Now includes better error messages
  - VSParseIntegerVectorException: Added constructors with cause support
  - VSNegativeNumberException: Added field name and value parameters
- Add new specific exception types:
  - VSConfigurationException: For configuration errors
  - VSSerializationException: For save/load operations
  - VSProcessException: For process-related errors
  - VSProtocolException: For protocol execution errors
- Create VSErrorHandler utility class:
  - Centralized error logging and user notification
  - Consistent error handling patterns
  - Helper methods for warning and error dialogs
- Update exception handling in code:
  - VSClassLoader: Better error messages and specific exception handling
  - Timestamp events: Catch RuntimeException for custom actions
- All 132 unit tests pass

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

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

1 files changed, 29 insertions, 4 deletions

diff --git a/src/main/java/exceptions/VSParseIntegerVectorException.java b/src/main/java/exceptions/VSParseIntegerVectorException.java
index 19c2b82..639b77e 100644
--- a/src/main/java/exceptions/VSParseIntegerVectorException.java
+++ b/src/main/java/exceptions/VSParseIntegerVectorException.java
@@ -1,13 +1,38 @@
 package exceptions;
 
 /**
- * The Interface VSParseIntegerVectorException, this exception is thrown if
- * the VSAbstractEditor is not able to parse the vector fields input of the
- * user.
+ * Exception thrown when the VSAbstractEditor cannot parse vector field input.
+ * This typically occurs when user input for vector values is malformed.
  *
  * @author Paul C. Buetow
  */
-public class VSParseIntegerVectorException extends Exception {
+public class VSParseIntegerVectorException extends VSSimulatorException {
     /** The serial version uid */
     private static final long serialVersionUID = 1L;
+    
+    /**
+     * Constructs a new parse integer vector exception.
+     */
+    public VSParseIntegerVectorException() {
+        super("Failed to parse integer vector from input");
+    }
+    
+    /**
+     * Constructs a new parse integer vector exception with the specified input string.
+     *
+     * @param input the input string that could not be parsed
+     */
+    public VSParseIntegerVectorException(String input) {
+        super("Failed to parse integer vector from input: " + input);
+    }
+    
+    /**
+     * Constructs a new parse integer vector exception with the specified input and cause.
+     *
+     * @param input the input string that could not be parsed
+     * @param cause the underlying cause of the parse failure
+     */
+    public VSParseIntegerVectorException(String input, Throwable cause) {
+        super("Failed to parse integer vector from input: " + input, cause);
+    }
 }