chore: cleanup temporary documentation and reports

[google-labs-jules]

Removed the following files:

• COPY_MODULE_IMPLEMENTATION.md
• DEBUG_MODULE_IMPLEMENTATION.md
• ERROR_HANDLING_IMPLEMENTATION.md
• FAILURE_ERADICATION_PLAN.md
• FORKS_CODE_REVIEW.md
• FORKS_IMPLEMENTATION_REPORT.md
• FORKS_VERIFICATION.md
• HIVE2_COMPLETION_SUMMARY.md
• IMPLEMENTATION_SUMMARY.md
• OUTPUT_BUFFERING_IMPLEMENTATION.md
• PARALLEL_E2E_TESTS.md
• PARALLEL_ERROR_HANDLING_GUIDE.md
• PARALLEL_OUTPUT_FIX_SUMMARY.md
• QUICK_START_DEBUG.md
• SET_FACT_IMPLEMENTATION.md
• TEMPLATE_MODULE_IMPLEMENTATION.md

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PR created automatically by Jules for task 7672209919028403294 started by @dolagoartur

[google-labs-jules]

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