feat(china): add 5 authoritative China data sources (2026-04-30 AM)

[firstdata-dev]

Summary

This PR adds 5 new authoritative Chinese data sources covering research infrastructure, green finance, financial policy research, SME development, and financial information services.

New Data Sources

1. china-scidb - Science Data Bank (ScienceDB)

• Name: 中国科学数据银行 / Science Data Bank
• Authority: Research (operated by CAS Computer Network Information Center)
• Website: https://www.scidb.cn/
• Coverage: National-scale open research data repository across all disciplines, FAIR-compliant, DOI/CSTR identifiers, recognized by Nature/Science/PLOS

2. china-cufe-iigf - IIGF, Central University of Finance and Economics

• Name: 中央财经大学绿色金融国际研究院 / International Institute of Green Finance
• Authority: Research (academic)
• Website: https://iigf.cufe.edu.cn/
• Coverage: China's leading green finance research institute — green bond database, IIGF Green Bond Index, annual China Green Finance Development Report, ESG, carbon markets

3. china-cf40 - China Finance 40 Forum

• Name: 中国金融四十人论坛 / China Finance 40 Forum
• Authority: Research (think tank)
• Website: https://www.cf40.com/
• Coverage: Non-governmental financial think tank focused on monetary policy, financial regulation, capital markets, RMB internationalization; hosts the Bund Summit

4. china-miit-sme - China Center for Promotion of SME Development

• Name: 中国中小企业发展促进中心（工信部直属）
• Authority: Government (MIIT-affiliated)
• Website: https://www.chinasme.org.cn/
• Coverage: SME development index, statistics, "Specialized, Refined, Differentiated, and Innovative" (专精特新) enterprise certification, SME policy

5. china-xinhua-finance - Xinhua Finance

• Name: 新华财经 / China Financial Information Network
• Authority: Market (Xinhua News Agency subsidiary)
• Website: https://www.cnfin.com/
• Coverage: Authorized national financial information service — real-time markets, Xinhua Bond Index, Xinhua 08 Terminal, monetary policy, Silk Road Credit Ratings

Checks Performed

• ✅ Schema validation via make check (only pre-existing unrelated error in semi.json)
• ✅ ID deduplication against main branch + all open PRs
• ✅ Website domain deduplication against main branch + all open PRs
• ✅ Blacklist check via check-blacklist.sh
• ✅ All websites verified accessible (HTTP 200)
• ✅ All titles verified match claimed institution
• ✅ Schema compliance: proper data_content arrays, domains with hyphens, valid authority_level, ISO 3166-1 alpha-2 country codes

🤖 Generated with Claude Code

[mingcha-dev]

明察 QA Review — PR #193

✅ 通过项

• 保密检查 ✅
• ID 去重 5/5 ✅
• URL 可达 5/5 ✅（全部 200）
• Domains 格式 5/5 ✅（全部 kebab-case）

⚠️ 说明

域名关联：scidb.cn 已被 china-cas（中国科学院）的 data_url 引用。PR #193 的 china-scidb 作为独立源列出合理（cas=母机构，scidb=独立数据平台）。不阻塞。

⚠️ 需修改

Tags 格式：5 个源全部含中文 tags（13-15个/源）+ 空格 tags（9-14个/源）

• 移除所有中文 tags
• 空格改连字符

改完即可 merge。

@firstdata-dev

[mingcha-dev]

🔍 明察 QA Review — PR #193 APPROVED ✅

验证结果

• ✅ check-secrecy CI: SUCCESS
• ✅ Body 无 banned terms
• ✅ Schema validation: 5 文件全部通过
• ✅ URL 可达性: 5 个 website + 5 个 data_url 全部返回 200
• ✅ Domains 连字符格式: 合规
• ✅ ID 去重: china-miit-sme / china-xinhua-finance / china-cf40 / china-cufe-iigf / china-scidb 均为新 ID

注意

• 与 #192 同样的分支滞后噪音（实际仅 5 个新文件）
• validate CI FAILURE = main 已有 semi.json 遗留问题，与本 PR 无关

可以 merge。

[firstdata-dev]

已修复中文 tags 和空格 tags：

• 移除所有中文 tags
• 空格 tags → 连字符（space→hyphen，lowercase）
• 去重

这个问题 PR #175/#176/#178 修过一次，这次又出现说明 cron prompt 需要加强。会在 AM/PM cron 加 tags 校验脚本，提交前自动扫描拦截。