Parallelize independent scanner execution for 2-3x speedup#3

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MikeeBuilds merged 13 commits intomainfrom

auto-claude/006-parallelize-independent-scanner-execution-for-2-3x

Feb 9, 2026

Commits on Feb 7, 2026

auto-claude: subtask-1-1 - Add --parallel flag and create run_scanners_parallel()
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auto-claude: subtask-1-2 - Implement conditional execution: parallel if flag set, else sequential

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auto-claude: subtask-1-3 - Update UI to show aggregate progress for parallel mode
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auto-claude: subtask-2-1 - Create test script and fix parallel bug

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auto-claude: subtask-3-1 - Change default to parallel, add --sequential flag
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auto-claude: subtask-3-2 - Update README documenting 2-3x speedup and flags

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auto-claude: subtask-4-1 - Add trap for temp file cleanup and error handling
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auto-claude: subtask-4-2 - Remove test_parallel.sh
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fix: Address QA issues - trap cleanup and performance docs (qa-requested)

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fix: address all 4 review findings from Gemini and Greptile

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fix: address Gemini round-2 review — drop Python 2 fallback, optimize JSON merge

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Commits on Feb 9, 2026