📚 Update documentation with pipx installation instructions

- Added pipx as recommended installation method across all docs
- Updated troubleshooting guides with PEP 668 error solutions
- Added multiple installation options with clear hierarchy
- Enhanced error handling instructions with fallback options
- Consistent installation instructions throughout documentation

Docs/Getting-Started/installation.md

@@ -4,13 +4,19 @@ SuperClaude installs behavioral context files that Claude Code reads to enhance
 
 ## Quick Start 🚀
 
-**Python (Recommended):**
+**pipx (Recommended for Linux/macOS):**
+```bash
+pipx install SuperClaude
+SuperClaude install
+```
+
+**pip (Traditional):**
 ```bash
 pip install SuperClaude
 SuperClaude install
 ```
 
-**NPM:**
+**NPM (Cross-platform):**
 ```bash
 npm install -g @bifrost_inc/superclaude
 SuperClaude install
@@ -24,6 +30,18 @@ pip install -e ".[dev]"
 SuperClaude install --dry-run
 ```
 
+**If you encounter PEP 668 errors:**
+```bash
+# Option 1: Use pipx (recommended)
+pipx install SuperClaude
+
+# Option 2: Use pip with --user flag
+pip install --user SuperClaude
+
+# Option 3: Force installation (use with caution)
+pip install --break-system-packages SuperClaude
+```
+
 ## Command Types
 
 | Type | Where Used | Format | Example |

Docs/Getting-Started/quick-start.md

@@ -12,7 +12,14 @@ SuperClaude is a **Context Engineering Framework** that enhances Claude Code by
 
 ### 🖥️ Installation - Run in Terminal
 ```bash
+# Recommended for Linux/macOS
+pipx install SuperClaude && SuperClaude install
+
+# Traditional method
 pip install SuperClaude && SuperClaude install
+
+# Cross-platform via NPM
+npm install -g @bifrost_inc/superclaude && superclaude install
 ```
 
 ### 💬 First Context Triggers - Type in Claude Code Conversation