fix: Optimize fuzzing and fix CSV buffer accumulation

- Deploy Uniswap factory once before all runs (saves ~1.16M gas per run)
- Fix CSV buffer accumulation bug by clearing buffer between runs
- Add clearCSV() function to CSVManager for proper buffer management
- Each fuzzing run now gets its own clean CSV with correct token0isWeth values
- Comment out failing console.log in Optimizer.t.sol to fix compilation

The token ordering now correctly alternates:
- Even seeds: token0isWeth = true (WETH < KRAIKEN)
- Odd seeds: token0isWeth = false (KRAIKEN < WETH)

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

Co-Authored-By: Claude <noreply@anthropic.com>

onchain/test/Optimizer.t.sol

@@ -210,7 +210,8 @@ contract OptimizerTest is Test {
         
         // Log some interesting cases
         if (anchorWidth == 10 || anchorWidth == 80) {
-            console.log("Bound hit - Staking:", percentageStaked / 1e16, "%, Tax:", averageTaxRate / 1e16, "%, Width:", anchorWidth);
+            // Commented out due to console.log compilation issue
+            // console.log("Bound hit - Staking:", percentageStaked / 1e16, "%, Tax:", averageTaxRate / 1e16, "%, Width:", anchorWidth);
         }
     }