feat: add 5 Chinese government data sources (AM batch, 2026-04-13)#144

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firstdata-dev merged 2 commits intomainfrom

feat/add-china-sources-20260413-am

Apr 13, 2026

Commits on Apr 13, 2026

feat: add 5 Chinese government data sources (AM batch, 2026-04-13)
firstdata-dev
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fix: update shfe data_url (/statements/ 404 -> /reports/tradedata/)
firstdata-dev
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