fix: Use absolute GitHub URLs for download links

- Replace relative paths with direct GitHub raw URLs
- Fix broken download links that pointed to missing files
- Ensure downloads work immediately from GitHub README
- Use github.com/web-werkstatt/ai-context-optimizer/raw/main/ URLs
- Update both English and German README files

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

Co-Authored-By: Claude <[email protected]>

Author: web-werkstatt

README.md

@@ -175,7 +175,7 @@ Ctrl+Shift+P → "Cline Token Manager: Show Fix Instructions"
 ## ⚡ **Quick Start - Get Cache-Explosion Prevention NOW!**
 
 ### **🚨 Installation (2 minutes)**
-1. **Download**: [`cline-token-manager-beta-1.2.0-universal-ai-platform.vsix`](./releases/beta/cline-token-manager-beta-1.2.0-universal-ai-platform.vsix) (11.7 MB)
+1. **Download**: [`cline-token-manager-beta-1.2.0-universal-ai-platform.vsix`](https://github.com/web-werkstatt/ai-context-optimizer/raw/main/releases/beta/cline-token-manager-beta-1.2.0-universal-ai-platform.vsix) (11.7 MB)
 2. **Install**: Open VS Code → `Ctrl+Shift+P` → "Extensions: Install from VSIX..."
 3. **Activate**: Extension activates automatically with Cline
 4. **Start Saving**: Immediate cache-explosion prevention begins

README_DE.md

@@ -137,7 +137,7 @@ Cursor bewies, dass intelligentes Kontext-Management $400M+ Wert schafft. Wir na
 ## ⚡ **Schnellstart - Cache-Explosion Prevention JETZT!**
 
 ### **🚨 Installation (2 Minuten)**
-1. **Download**: [`cline-token-manager-beta-1.2.0-universal-ai-platform.vsix`](./releases/beta/cline-token-manager-beta-1.2.0-universal-ai-platform.vsix) (11,7 MB)
+1. **Download**: [`cline-token-manager-beta-1.2.0-universal-ai-platform.vsix`](https://github.com/web-werkstatt/ai-context-optimizer/raw/main/releases/beta/cline-token-manager-beta-1.2.0-universal-ai-platform.vsix) (11,7 MB)
 2. **Installation**: VS Code öffnen → `Strg+Shift+P` → "Extensions: Install from VSIX..."
 3. **Aktivierung**: Extension aktiviert sich automatisch mit Cline
 4. **Sofort sparen**: Cache-Explosion Prevention beginnt sofort