fix: resolve critical CI/CD pipeline failures - Black formatting and Windows Unicode encoding

 **Black Code Formatting Fixes:**
- Run Black formatter on all Python files to ensure consistent formatting
- Fix any formatting inconsistencies that may have caused CI failures
- Ensure all Python code complies with 88-character line length standard

 **Windows Unicode Encoding Fixes:**
- Remove all remaining Unicode emoji characters from CI workflow files
- Replace Unicode emojis with ASCII alternatives in code-quality.yml:
  *   [SETUP],   [INSTALL],   [SCAN],   [OK]
- Replace Unicode emojis in auto-release.yml changelog generation:
  *   Breaking Changes,   New Features,   Bug Fixes,   Maintenance
- Fix publish.yml workflow name: remove  and  emojis

 **Comprehensive Unicode Character Removal:**
- Systematically searched and replaced all Unicode characters in workflow files
- Maintained clear, professional status reporting with ASCII alternatives
- Preserved all functionality while ensuring Windows console compatibility

 **Expected Resolution:**
- Code Quality workflow should pass Black formatting checks
- Integration Test workflow should complete on Windows without UnicodeEncodeError
- All CI/CD pipelines should work consistently across Ubuntu, Windows, macOS
- Professional, readable status messages without encoding dependencies

**Root Causes Fixed:**
1. Black formatting: Inconsistent code formatting in test files
2. Unicode encoding: Remaining emoji characters in CI workflows causing Windows cp1252 encoding errors

**Solution:** Complete Unicode character elimination + Black formatting compliance + UTF-8 encoding for Python scripts that need Unicode support.

Author: jj-devhub

.github/workflows/auto-release.yml

@@ -126,15 +126,15 @@ jobs:
           # Push with retry logic
           for i in {1..3}; do
             if git push origin main; then
-              echo "✅ Successfully pushed version bump commit"
+              echo "[OK] Successfully pushed version bump commit"
               break
             else
-              echo "❌ Push attempt $i failed, retrying in 5 seconds..."
+              echo "[ERROR] Push attempt $i failed, retrying in 5 seconds..."
               sleep 5
             fi
 
             if [ $i -eq 3 ]; then
-              echo "❌ Failed to push after 3 attempts"
+              echo "[ERROR] Failed to push after 3 attempts"
               exit 1
             fi
           done
@@ -148,23 +148,23 @@ jobs:
 
         # Check if tag already exists
         if git tag -l | grep -q "^$TAG_NAME$"; then
-          echo "⚠️  Tag $TAG_NAME already exists, skipping tag creation"
+          echo "[WARN] Tag $TAG_NAME already exists, skipping tag creation"
         else
           git tag "$TAG_NAME"
-          echo "✅ Created tag: $TAG_NAME"
+          echo "[OK] Created tag: $TAG_NAME"
 
           # Push tag with retry logic
           for i in {1..3}; do
             if git push origin "$TAG_NAME"; then
-              echo "✅ Successfully pushed tag: $TAG_NAME"
+              echo "[OK] Successfully pushed tag: $TAG_NAME"
               break
             else
-              echo "❌ Tag push attempt $i failed, retrying in 5 seconds..."
+              echo "[ERROR] Tag push attempt $i failed, retrying in 5 seconds..."
               sleep 5
             fi
 
             if [ $i -eq 3 ]; then
-              echo "❌ Failed to push tag after 3 attempts"
+              echo "[ERROR] Failed to push tag after 3 attempts"
               exit 1
             fi
           done
@@ -265,10 +265,10 @@ jobs:
         
         if pip index versions demopy_gb_jj 2>/dev/null | grep -q "$VERSION"; then
           echo "exists=true" >> $GITHUB_OUTPUT
-          echo "⚠️  Version $VERSION already exists on PyPI"
+          echo "[WARN] Version $VERSION already exists on PyPI"
         else
           echo "exists=false" >> $GITHUB_OUTPUT
-          echo "✅ Version $VERSION is new, proceeding with upload"
+          echo "[OK] Version $VERSION is new, proceeding with upload"
         fi
     
     - name: Publish to PyPI
@@ -315,29 +315,29 @@ jobs:
         BREAKING=$(echo "$COMMITS" | grep -iE "(BREAKING CHANGE|breaking:|major:)" || true)
         
         if [ ! -z "$BREAKING" ]; then
-          CHANGELOG="${CHANGELOG}### 🚨 Breaking Changes\n${BREAKING}\n\n"
+          CHANGELOG="${CHANGELOG}### Breaking Changes\n${BREAKING}\n\n"
         fi
-        
+
         if [ ! -z "$FEATURES" ]; then
-          CHANGELOG="${CHANGELOG}### ✨ New Features\n${FEATURES}\n\n"
+          CHANGELOG="${CHANGELOG}### New Features\n${FEATURES}\n\n"
         fi
-        
+
         if [ ! -z "$FIXES" ]; then
-          CHANGELOG="${CHANGELOG}### 🐛 Bug Fixes\n${FIXES}\n\n"
+          CHANGELOG="${CHANGELOG}### Bug Fixes\n${FIXES}\n\n"
         fi
-        
+
         if [ ! -z "$CHORES" ]; then
-          CHANGELOG="${CHANGELOG}### 🔧 Maintenance\n${CHORES}\n\n"
+          CHANGELOG="${CHANGELOG}### Maintenance\n${CHORES}\n\n"
         fi
-        
+
         # Add installation instructions
-        CHANGELOG="${CHANGELOG}### 📦 Installation\n\n"
+        CHANGELOG="${CHANGELOG}### Installation\n\n"
         CHANGELOG="${CHANGELOG}\`\`\`bash\n"
         CHANGELOG="${CHANGELOG}pip install demopy_gb_jj==${{ needs.analyze-and-version.outputs.new_version }}\n"
         CHANGELOG="${CHANGELOG}\`\`\`\n\n"
-        
+
         # Add usage example
-        CHANGELOG="${CHANGELOG}### 🚀 Usage\n\n"
+        CHANGELOG="${CHANGELOG}### Usage\n\n"
         CHANGELOG="${CHANGELOG}\`\`\`python\n"
         CHANGELOG="${CHANGELOG}import demopy\n"
         CHANGELOG="${CHANGELOG}print(demopy.hello())  # Hello from demopy_gb_jj!\n"

.github/workflows/code-quality.yml

@@ -53,13 +53,13 @@ jobs:
 
     - name: Install Rust tools
       run: |
-        echo "🛠️  Installing Rust tools for CI..."
+        echo "[SETUP] Installing Rust tools for CI..."
         python scripts/install_rust_tools.py --mode ci
 
     - name: Check for unused dependencies
       run: |
-        echo "🔍 Checking for unused dependencies..."
-        cargo machete || echo "⚠️  cargo-machete check completed with warnings"
+        echo "Checking for unused dependencies..."
+        cargo machete || echo "[WARN] cargo-machete check completed with warnings"
 
   python-quality:
     name: Python Code Quality
@@ -93,7 +93,7 @@ jobs:
         echo "PYTHONPATH=${PYTHONPATH}:$(pwd)/python" >> $GITHUB_ENV
 
         # Validate that the package can be imported
-        python -c "import sys; sys.path.insert(0, 'python'); import demopy; print('✅ demopy module imported successfully')"
+        python -c "import sys; sys.path.insert(0, 'python'); import demopy; print('[OK] demopy module imported successfully')"
         python -c "import sys; sys.path.insert(0, 'python'); import demopy; print('Package version:', demopy.__version__)"
     
     - name: Check Python formatting (Black)
@@ -116,7 +116,7 @@ jobs:
         echo "PYTHONPATH: $PYTHONPATH"
 
         # Test that the module can be imported
-        python -c "import sys; sys.path.insert(0, 'python'); import demopy; print('✅ demopy module imported successfully')"
+        python -c "import sys; sys.path.insert(0, 'python'); import demopy; print('[OK] demopy module imported successfully')"
 
         # Run the actual tests
         pytest tests/ -v
@@ -152,9 +152,9 @@ jobs:
         try:
             with open('$workflow', 'r') as f:
                 yaml.safe_load(f)
-            print('✅ $workflow is valid')
+            print('[OK] $workflow is valid')
         except Exception as e:
-            print('❌ $workflow is invalid: {e}')
+            print('[ERROR] $workflow is invalid: {e}')
             sys.exit(1)
         "
         done
@@ -170,13 +170,13 @@ jobs:
       run: |
         # Install cargo-audit if not already present
         if ! command -v cargo-audit &> /dev/null; then
-          echo "📦 Installing cargo-audit..."
+          echo "[INSTALL] Installing cargo-audit..."
           cargo install cargo-audit --locked || cargo install cargo-audit --locked --force
         else
-          echo "✅ cargo-audit already installed"
+          echo "[OK] cargo-audit already installed"
         fi
 
-        echo "🔒 Running security audit..."
+        echo "[SCAN] Running security audit..."
         cargo audit
       continue-on-error: true  # Don't fail the build on security advisories initially
 
@@ -245,17 +245,17 @@ jobs:
         pip install target/wheels/*.whl
         python -c "
         import demopy
-        print('✅ Package imports successfully')
+        print('[OK] Package imports successfully')
         print('Version:', demopy.__version__)
         print('Functions:', demopy.__all__)
-        
+
         # Test all functions
         print('hello():', demopy.hello())
         print('add(5, 7):', demopy.add(5, 7))
         print('multiply(2.5, 4.0):', demopy.multiply(2.5, 4.0))
         print('sum_list([1,2,3]):', demopy.sum_list([1,2,3]))
         print('reverse_string(\"test\"):', demopy.reverse_string('test'))
         print('power(2, 3):', demopy.power(2, 3))
-        print('✅ All functions work correctly')
+        print('[OK] All functions work correctly')
         "
       shell: bash

.github/workflows/publish.yml

@@ -1,4 +1,4 @@
-name: Publish Python 🐍 distribution 📦 to PyPI atomatically
+name: Publish Python distribution to PyPI automatically
 
 on:
   release:

scripts/bump_version.py

@@ -4,7 +4,7 @@
 
 This script updates version numbers across all relevant files:
 - Cargo.toml
-- pyproject.toml  
+- pyproject.toml
 - python/demopy/__init__.py
 
 Usage:
@@ -22,7 +22,7 @@
 
 def parse_version(version_str):
     """Parse a semantic version string into major, minor, patch components."""
-    match = re.match(r'^(\d+)\.(\d+)\.(\d+)$', version_str)
+    match = re.match(r"^(\d+)\.(\d+)\.(\d+)$", version_str)
     if not match:
         raise ValueError(f"Invalid version format: {version_str}")
     return tuple(map(int, match.groups()))
@@ -31,7 +31,7 @@ def parse_version(version_str):
 def bump_version(current_version, bump_type):
     """Bump version according to the specified type."""
     major, minor, patch = parse_version(current_version)
-    
+
     if bump_type == "major":
         return f"{major + 1}.0.0"
     elif bump_type == "minor":
@@ -49,12 +49,12 @@ def get_current_version():
     pyproject_path = Path("pyproject.toml")
     if not pyproject_path.exists():
         raise FileNotFoundError("pyproject.toml not found")
-    
+
     content = pyproject_path.read_text()
     match = re.search(r'^version = "([^"]+)"', content, re.MULTILINE)
     if not match:
         raise ValueError("Version not found in pyproject.toml")
-    
+
     return match.group(1)
 
 
@@ -64,10 +64,10 @@ def update_file(file_path, pattern, replacement):
     if not path.exists():
         print(f"Warning: {file_path} not found, skipping...")
         return False
-    
+
     content = path.read_text()
     new_content = re.sub(pattern, replacement, content)
-    
+
     if content != new_content:
         path.write_text(new_content)
         print(f"Updated {file_path}")
@@ -80,62 +80,62 @@ def update_file(file_path, pattern, replacement):
 def update_all_versions(new_version):
     """Update version in all relevant files."""
     files_updated = []
-    
+
     # Update pyproject.toml
     if update_file(
-        "pyproject.toml",
-        r'version = "[^"]+"',
-        f'version = "{new_version}"'
+        "pyproject.toml", r'version = "[^"]+"', f'version = "{new_version}"'
     ):
         files_updated.append("pyproject.toml")
-    
+
     # Update Cargo.toml (only the package version, not dependencies)
     if update_file(
         "Cargo.toml",
         r'(\[package\][\s\S]*?)version = "[^"]+"',
-        rf'\1version = "{new_version}"'
+        rf'\1version = "{new_version}"',
     ):
         files_updated.append("Cargo.toml")
-    
+
     # Update python/demopy/__init__.py
     if update_file(
         "python/demopy/__init__.py",
         r'__version__ = "[^"]+"',
-        f'__version__ = "{new_version}"'
+        f'__version__ = "{new_version}"',
     ):
         files_updated.append("python/demopy/__init__.py")
-    
+
     return files_updated
 
 
 def main():
-    parser = argparse.ArgumentParser(description="Bump version across all project files")
+    parser = argparse.ArgumentParser(
+        description="Bump version across all project files"
+    )
     parser.add_argument(
         "bump_type",
-        help="Version bump type (major, minor, patch) or specific version (e.g., 1.2.3)"
+        help="Version bump type (major, minor, patch) or specific version (e.g., 1.2.3)",
     )
 
     args = parser.parse_args()
 
     # Handle argument parsing
     bump_type = args.bump_type
-    
+
     try:
         current_version = get_current_version()
         print(f"Current version: {current_version}")
-        
+
         new_version = bump_version(current_version, bump_type)
         print(f"New version: {new_version}")
-        
+
         files_updated = update_all_versions(new_version)
-        
+
         if files_updated:
             print(f"\nSuccessfully updated version to {new_version} in:")
             for file in files_updated:
                 print(f"  - {file}")
         else:
             print("No files were updated.")
-            
+
     except Exception as e:
         print(f"Error: {e}", file=sys.stderr)
         sys.exit(1)