🐛 fix(reviewer): sort finding IDs numerically

[SigureMo]

The dashboard sorted finding IDs lexically, placing F10 immediately after F1. Use dictsort_natural so IDs appear as F1, F2, …, F10 while preserving findings, statuses and canonical thread links.

Requires gh-slate 0.1.1 or newer, which includes the merged upstream filter. The installed CLI has been upgraded to 0.1.1.

Validation: the current gh-slate CLI validates and renders the bundled profile. The original Relax #370 check covered all 19 finding IDs and their links. After restacking, 278 Python tests, 6 frontend tests, 19 browser tests, formatting, type checks and the production build passed.

^{This PR is co-authored with @codex (gpt-6 astra xhigh)}

[chatgpt-codex-connector]

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-26T04:46:15.101535Z	c0f25a7	New commits

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Reviewed commit: ec8ab5422a

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