Fix runtime switch config and DCA support

[Pigbibi]

Summary

• Fix runtime target pending-state display when keeping current settings.
• Align DCA support across switch config/worker/build script, including IBKR.
• Refresh internal dependency matrix and regression tests for settings/financing flows.

Test Plan

• node tests/test_cash_financing.js
• node tests/strategy_switch_worker_validation.mjs
• python3 python/scripts/runtime_settings.py validate && python3 -m pytest python/tests -q && git diff --check

[github-actions]

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