feat: Major documentation reorganization and unified Box design updates

## Documentation & Organization
- Moved copilot_issues.txt → 00_MASTER_ROADMAP.md (phases folder)
- Created Phase 9.79b.1 & 9.79b.2 plans for unified Box implementation
- Updated unified-box-design-deep-analysis.md with ChatGPT5 insights
- Added P2P documentation and examples (ping-pong, self-ping)

## Code Updates
- P2PBox: Reverted to original error state for demonstration
- VM: Enhanced BoxCall dispatch for unified approach
- Updated box factory, interpreter calls, and transport layer

## Cleanup & Privacy
- Removed private/ and private_test/ from git tracking
- Added private folders to .gitignore for security
- Cleaned root directory: moved backups, removed temp files
- Moved consultation files to docs/archive/consultations/

## Other Improvements
- Added object literal syntax improvement idea
- Updated CLAUDE.md with master roadmap reference
- Updated CURRENT_TASK.md with latest progress

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

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

src/backend/vm.rs

@@ -539,10 +539,41 @@ impl VM {
     }
     
     /// Call a method on a Box - simplified version of interpreter method dispatch
-    pub(super) fn call_box_method(&self, box_value: Box<dyn NyashBox>, method: &str, _args: Vec<Box<dyn NyashBox>>) -> Result<Box<dyn NyashBox>, VMError> {
+    pub(super) fn call_box_method(&self, box_value: Box<dyn NyashBox>, method: &str, mut _args: Vec<Box<dyn NyashBox>>) -> Result<Box<dyn NyashBox>, VMError> {
         // For now, implement basic methods for common box types
         // This is a simplified version - real implementation would need full method dispatch
 
+        // 🌟 Universal methods pre-dispatch (non-invasive)
+        match method {
+            "toString" => {
+                if !_args.is_empty() {
+                    return Ok(Box::new(StringBox::new(format!("Error: toString() expects 0 arguments, got {}", _args.len()))));
+                }
+                return Ok(Box::new(StringBox::new(box_value.to_string_box().value)));
+            }
+            "type" => {
+                if !_args.is_empty() {
+                    return Ok(Box::new(StringBox::new(format!("Error: type() expects 0 arguments, got {}", _args.len()))));
+                }
+                return Ok(Box::new(StringBox::new(box_value.type_name())));
+            }
+            "equals" => {
+                if _args.len() != 1 {
+                    return Ok(Box::new(StringBox::new(format!("Error: equals() expects 1 argument, got {}", _args.len()))));
+                }
+                let rhs = _args.remove(0);
+                let eq = box_value.equals(&*rhs);
+                return Ok(Box::new(eq));
+            }
+            "clone" => {
+                if !_args.is_empty() {
+                    return Ok(Box::new(StringBox::new(format!("Error: clone() expects 0 arguments, got {}", _args.len()))));
+                }
+                return Ok(box_value.clone_box());
+            }
+            _ => {}
+        }
+
         // ResultBox (NyashResultBox - new)
         if let Some(result_box) = box_value.as_any().downcast_ref::<crate::boxes::result::NyashResultBox>() {
             match method {
@@ -562,11 +593,6 @@ impl VM {
 
         // Legacy box_trait::ResultBox is no longer handled here (migration complete)
 
-        // Generic fallback: toString for any Box type
-        if method == "toString" {
-            return Ok(Box::new(StringBox::new(box_value.to_string_box().value)));
-        }
-
         // StringBox methods
         if let Some(string_box) = box_value.as_any().downcast_ref::<StringBox>() {
             match method {