feat(jd,taobao,cnki): add JD, Taobao, and CNKI adapters

[Muuuun]

Summary

• Add 7 new adapters for JD.com (京东), Taobao (淘宝), and CNKI (知网)
• JD: full shopping workflow — search, detail, reviews, add-to-cart, view cart
• Taobao: search with clean structured extraction from obfuscated DOM
• CNKI: overseas portal search (oversea.cnki.net)

JD (京东) — 5 commands

Command	Strategy	Description
jd search <query>	cookie + DOM	Search products (title, price, shop, SKU)
jd detail <sku>	cookie + DOM	Product detail (rating, review count, tags)
jd reviews <sku>	cookie + DOM	User reviews extraction
jd add-cart <sku>	cookie + navigate	Add to cart via cart.jd.com/gate.action
jd cart	cookie + API	View cart contents

JD's new frontend uses fully obfuscated CSS classes — all extraction is done via div[data-sku] attribute and text pattern matching rather than class selectors.

Taobao (淘宝) — 1 command

Command	Strategy	Description
taobao search <query>	cookie + DOM	Product search with sort options (default/sale/price)

Taobao's DOM uses obfuscated class names with semantic prefixes (e.g. title--xxx, priceInt--xxx, realSales--xxx, shopName--xxx, procity--xxx). The adapter matches on these prefixes via [class*="prefix--"] selectors, producing clean structured output.

Note: Taobao search requires login. Users need to log in once in the opencli automation window.

CNKI (知网) — 1 command

Command	Strategy	Description
cnki search <query>	cookie + DOM	Chinese academic paper search

Uses oversea.cnki.net to avoid domestic access restrictions (the main kns.cnki.net returns 418 for non-browser requests and blocks CDP attach).

Test plan

• npx tsc --noEmit — type check passed
• npx vitest run src/ — all unit tests passed
• opencli validate — 86 CLI definitions validated, 0 errors
• Manual testing: JD search, detail, reviews, add-cart, cart all verified
• Manual testing: Taobao search with clean field extraction verified
• Manual testing: CNKI overseas search verified

🤖 Generated with Claude Code