Fix dashboard panel grouping: move performance/error panels to correct section - Moved API Request Duration and API Error Rate panels from y=32 to y=40 - These panels were incorrectly appearing in Tool Usage section - Now properly grouped under Performance & Errors section - Adjusted subsequent section positions to maintain proper spacing

Add dashboard screenshots and organize project structure - Move images to docs/images/ and showcase key features with visual examples

Fix README markdown formatting - Remove unintended code block wrapper around Key Dashboard Features section

Initial release: Claude Code Observability Stack - Complete observability solution with Grafana dashboards, API request tracking, and production-ready Docker stack