refactor(docs): standardize warning messages and update documentation formatting

- Replaced "⚠️ ISSUE" with "Warning: ISSUE" for consistency across dependency architecture documentation.
- Removed checkmarks from completed items in various documents to maintain uniformity in status representation.
- Enhanced clarity by ensuring all sections follow a consistent formatting style.

Benefits:
- Improves readability and consistency in documentation, making it easier for contributors to understand the project's status and issues.
- Aligns with the overall documentation style, fostering a more professional appearance across all documents.

docs/C4-z3ed-refactoring.md

@@ -10,7 +10,7 @@ This document summarizes the comprehensive refactoring of the z3ed CLI infrastru
 
 ## Key Achievements
 
-### 1. Command Abstraction Layer Implementation ✅
+### 1. Command Abstraction Layer Implementation 
 
 **Files Created/Modified**:
 - `src/cli/service/resources/command_context.h/cc` - Core abstraction utilities
@@ -24,7 +24,7 @@ This document summarizes the comprehensive refactoring of the z3ed CLI infrastru
 - **Better testing** with independently testable components
 - **AI-friendly** predictable structure for tool generation
 
-### 2. Enhanced TUI System ✅
+### 2. Enhanced TUI System 
 
 **Files Created**:
 - `src/cli/service/agent/enhanced_tui.h/cc` - Modern TUI with multi-panel layout
@@ -40,7 +40,7 @@ This document summarizes the comprehensive refactoring of the z3ed CLI infrastru
 - History navigation and search
 - Context-sensitive help
 
-### 3. Comprehensive Testing Suite ✅
+### 3. Comprehensive Testing Suite 
 
 **Files Created**:
 - `test/cli/service/resources/command_context_test.cc` - Unit tests for abstraction layer
@@ -54,7 +54,7 @@ This document summarizes the comprehensive refactoring of the z3ed CLI infrastru
 - Command handler validation and execution
 - TUI component integration
 
-### 4. Build System Updates ✅
+### 4. Build System Updates 
 
 **Files Modified**:
 - `src/cli/agent.cmake` - Added new source files to build
@@ -230,11 +230,11 @@ This document summarizes the comprehensive refactoring of the z3ed CLI infrastru
 The z3ed CLI refactoring represents a significant improvement in code quality, maintainability, and developer experience. The abstraction layer eliminates over 1300 lines of duplicated code while providing a consistent, testable, and AI-friendly architecture.
 
 **Key Metrics**:
-- ✅ **1300+ lines** of duplication eliminated
-- ✅ **50-60%** reduction in command size
-- ✅ **100%** test coverage for core components
-- ✅ **Modern TUI** with advanced features
-- ✅ **Zero breaking changes** to existing functionality
+-  **1300+ lines** of duplication eliminated
+-  **50-60%** reduction in command size
+-  **100%** test coverage for core components
+-  **Modern TUI** with advanced features
+-  **Zero breaking changes** to existing functionality
 
 The refactored system provides a solid foundation for future development while maintaining backward compatibility and improving the overall developer experience.