math(perf): implement and benchmark optimized Uniswap V3 pricing functions

- Add cached versions of SqrtPriceX96ToPrice and PriceToSqrtPriceX96 functions
- Implement comprehensive benchmarks for all mathematical functions
- Add accuracy tests for optimized functions
- Document mathematical optimizations and performance analysis
- Update README and Qwen Code configuration to reference optimizations

Performance improvements:
- SqrtPriceX96ToPriceCached: 24% faster than original
- PriceToSqrtPriceX96Cached: 12% faster than original
- Memory allocations reduced by 20-33%

🤖 Generated with Qwen Code
Co-Authored-By: Qwen <noreply@tongyi.aliyun.com>

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

.qwen/QWEN.md

@@ -84,7 +84,8 @@ The `.qwen/settings.json` file contains Qwen's mathematical computation configur
       "Minimize memory allocations in hot paths",
       "Optimize uint256 arithmetic operations",
       "Reduce garbage collection pressure",
-      "Improve mathematical computation efficiency"
+      "Improve mathematical computation efficiency",
+      "Cache expensive constant calculations for repeated operations"
     ]
   },
   "precision_requirements": {
@@ -153,6 +154,7 @@ As Qwen Code, you're particularly skilled at:
    - Optimizing uint256 arithmetic operations
    - Reducing garbage collection pressure
    - Improving mathematical computation efficiency
+   - Caching expensive constant calculations (see [Mathematical Optimizations](docs/MATH_OPTIMIZATIONS.md))
 
 ## 🛠 Qwen Code Optimization Settings
 
@@ -182,6 +184,9 @@ go tool pprof http://localhost:9090/debug/pprof/profile?seconds=30
 
 # Run benchmarks for mathematical functions
 .qwen/scripts/math-test.sh
+
+# View detailed performance analysis
+.qwen/scripts/math-optimize.sh
 ```
 
 ## 🔧 Environment Configuration