[codex] Fix settings profile fallback display

[Pigbibi]

Summary

• Align Strategy Switch frontend fallback profile labels with strategy-profiles.example.json.
• Add missing cn_industry_etf_rotation fallback profile so offline/API fallback display matches the catalog.
• Avoid false pending margin changes on platforms without margin policy support, such as Binance and QMT.

Root cause

• The live /api/strategy-profiles catalog was correct, but the app's local fallback list and local labels had drifted from the canonical strategy profile catalog.
• Pending cash-only execution comparison still ran for non-margin platforms when no cash-only input should exist.

Validation

• python3 python/scripts/build_config.py --check
• node tests/strategy_switch_worker_validation.mjs
• node --check for page_asset.js, strategy_profiles_asset.js, app_css.js, app_js.js, and worker.js
• git diff --check HEAD~1 HEAD
• Manual Chrome login verification of Settings profile display for Binance, QMT, and IBKR.

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