feat: add 5 China authoritative data sources (AM batch 2026-05-06)

[firstdata-dev]

Summary

Adds 5 new Chinese authoritative data sources across research, health regulation, nutrition, scientific terminology, and science popularization domains.

New Sources

ID	Name (中文)	Authority	Domain	Website
china-cngbdb	国家基因库生命大数据平台	research	health/science	db.cngb.org
china-cmde	国家药品监督管理局医疗器械技术审评中心	government	health/regulation	cmde.org.cn
china-cns	中国营养学会	research	health/food/science	cnsoc.org
china-termonline	术语在线（全国科技名词委）	government	science/education/language	termonline.cn
china-cstm	中国科学技术馆	government	science/education/culture	cstm.org.cn

Why these sources

• CNGBdb — National-scale genomics/bioinformatics data hosted by China National GeneBank (Shenzhen); complements the existing NGDC entry by covering the CNGB/BGI-hosted sequence archive (CNSA), nucleotide/protein and literature databases.
• CMDE — Official NMPA technical review body for Class II/III and imported medical devices; publishes registration acceptance, review status, technical review guidance, IVD and innovation-device records. Fills a clear gap between the existing NMPA entry (administrative) and device-specific technical review.
• Chinese Nutrition Society (CNS) — Authoritative publisher of DRIs and the Dietary Guidelines for Chinese Residents; no prior nutrition-focused source in the catalog.
• TermOnline — CNCTST's official terminology platform with 500k+ standardized Chinese scientific/technical terms and English equivalents; valuable as ground-truth reference for LLM terminology and translation workflows.
• China Science and Technology Museum (CSTM) — National comprehensive science museum under CAST; publishes science literacy indicators, mobile/digital science museum data, and STEM education resources.

Checks

• ✅ All websites verified accessible (200/202/302)
• ✅ No blacklist matches (scripts/check-blacklist.sh)
• ✅ No website/ID duplicates against main + open PRs
• ✅ make check passes — 700 unique IDs, domain consistency OK
• ✅ Schema-conformant (website as URL, data_content arrays, domains hyphenated, ISO alpha-2 country codes, valid authority_level/update_frequency values)
• ✅ Tags mixed Chinese/English, no whitespace, English lowercase (per 2026-04-30 convention)

Closes part of the '中国优先 上午批次' daily contribution schedule.

[mingcha-dev]

明察 QA Review — PR #211 APPROVED ✅

Checklist

• ✅ CI 三项全绿（secrecy / schema / validate）
• ✅ 保密（body + 5 文件内容）
• ✅ ID 去重（5 新 ID 全库唯一）
• ✅ 缩写冲突排查：
  • china-cns（中国营养学会，cnsoc.org）vs 已有 china-cnsa（国家航天局，cnsa.gov.cn）— 子串匹配但不同机构不冲突
  • cngbdb / cmde / cstm / termonline 均无其他冲突
• ✅ 域名去重
• ✅ URL + title：
  • cstm: 中国科学技术馆 ✓
  • cmde: [202] SPA 无 title，whois Registrant = 国家药品监督管理局医疗器械技术审评中心 ✓（官方域名权威）
  • cns: 中国营养学会官网 ✓
  • cngbdb: CNGBdb ✓
  • termonline: 术语在线 ✓
• ✅ Domains kebab-case（2-3/文件）
• ✅ Tags 15/文件，无空格 / 乱码

覆盖价值

• cngbdb：国家基因库（华大 BGI），生命组学大数据
• cmde：医疗器械审评中心（NMPA 下属，与 nifdc/nmpa 形成体系）
• cns：营养学会（膳食指南权威）
• cstm：科学技术馆（科普数据）
• termonline：全国科学技术名词审定委员会术语平台（首个术语库源）

Merge 🚀