Align contributing checks with CI

[Pigbibi]

Summary

• update CONTRIBUTING local verification commands to match the dependency-free CI path

Tests

• python3 scripts/runtime_settings.py validate
• python3 -m unittest discover -s tests -v
• node --experimental-default-type=module tests/strategy_switch_worker_validation.mjs
• git diff --check

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Include web asset validation in local checks

For changes under web/strategy-switch-console, this documented local test set still does not match CI: .github/workflows/validate.yml runs sync_strategy_switch_page_asset.py, checks generated asset diffs/JQ, executes tests/strategy_switch_worker_validation.mjs, and runs Node syntax checks, but the new instructions stop after Python unittest discovery. Contributors following this section can miss failures that the Validate strategy switch web assets CI step will reject, especially because unittest discovery will not execute the .mjs test.

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