Add AI pipeline timing budget summary

[h1065153539-create]

Summary

Adds a deterministic AI pipeline timing budget summary for #5 so operators can see total duration, slowest stages, and over-budget stages without logging prompts or secret-looking values.

Fixes #5.

Changes

• Added ools/ai_pipeline_timing_summary.py to build text and JSON summaries from stage timings.
• Wired �i_pipeline.sh to record timed stages and write timing summaries, including an EXIT trap for partial summaries when a stage fails.
• Added focused unittest coverage for over-budget detection, slowest-stage ranking, CLI output, and prompt/secret redaction.

Testing

• python -m unittest discover -s tests -v passed 5 tests.
• python -m py_compile tools/ai_pipeline_timing_summary.py tests/test_ai_pipeline_timing_summary.py build.py tools/ai_migrator.py passed.
• python build.py was attempted. It did not complete because the bundled ools/encryptly/windows-x64/encryptly.exe preflight hung/failed before creating a new .logd; the resulting diagnostic/build-00000000.json is included to show the blocker. No new .logd was produced in this Windows validation environment.

Checklist

• Relevant modules affected by these changes build locally
• Tests pass locally
• Diagnostic build log is committed in this PR
• Documentation has been updated, if applicable
• Configuration or schema changes are documented, if applicable
• No generated build artifacts are committed, except the required diagnostic build log
• Changes are scoped to the PR purpose and avoid unrelated cleanup
• Security, privacy, and error-handling implications have been considered

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• I would like to request that my diagnostic build log is removed before merging

[Soengkit]

Thanks for the PR. I am closing this because Soengkit/zeroeye is only my working fork of the upstream repository, not an official bounty intake or payment queue. The fork parent/source is NemoMi/zeroeye: https://github.com/NemoMi/zeroeye. Please use the upstream owner current process for any submission or claim, and do not post payment details here.