Merge pull request #150 from zinzied/main - Enhanced User Experience

Features integrated:
- Stars Feature: Community-driven skill discovery with upvotes
- Auto-Update: Automatic skill updates via START_APP.bat (Git + PowerShell fallback)
- Interactive Prompt Builder: Context-aware prompt construction
- Date Tracking: Added date_added field to all skills
- Auto-Categorization: Smart category assignment based on keywords
- Enhanced UI: Risk level badges, date display, category stats

Conflicts resolved:
- START_APP.bat: Merged enhanced auto-update logic
- README.md: Kept v6.4.1 with new feature documentation
- Home.jsx: Combined fuzzy search + pagination + stars
- SkillDetail.jsx: Merged syntax highlighting + stars + date badges

All 950+ skills updated with date tracking and proper categorization.

Made-with: Cursor

web-app/public/skills/python-performance-optimization/SKILL.md

@@ -0,0 +1,38 @@
+---
+name: python-performance-optimization
+description: "Profile and optimize Python code using cProfile, memory profilers, and performance best practices. Use when debugging slow Python code, optimizing bottlenecks, or improving application performance."
+risk: unknown
+source: community
+---
+
+# Python Performance Optimization
+
+Comprehensive guide to profiling, analyzing, and optimizing Python code for better performance, including CPU profiling, memory optimization, and implementation best practices.
+
+## Use this skill when
+
+- Identifying performance bottlenecks in Python applications
+- Reducing application latency and response times
+- Optimizing CPU-intensive operations
+- Reducing memory consumption and memory leaks
+- Improving database query performance
+- Optimizing I/O operations
+- Speeding up data processing pipelines
+- Implementing high-performance algorithms
+- Profiling production applications
+
+## Do not use this skill when
+
+- The task is unrelated to python performance optimization
+- You need a different domain or tool outside this scope
+
+## Instructions
+
+- Clarify goals, constraints, and required inputs.
+- Apply relevant best practices and validate outcomes.
+- Provide actionable steps and verification.
+- If detailed examples are required, open `resources/implementation-playbook.md`.
+
+## Resources
+
+- `resources/implementation-playbook.md` for detailed patterns and examples.