chore(release): 1.7.21

[jackwener]

Summary

Adapter polish release: new web search adapters, Browser Bridge tab group reuse, and social adapters returning to one-shot tab leases.

Features:

• add DuckDuckGo / Brave / Yahoo web search adapters (feat: add DuckDuckGo, Brave, and Yahoo web search adapters #1546)
• add Boss job-seeker chatlist / chatmsg adapters (feat(boss): support job-seeker chatlist and chatmsg #1539)

Bug Fixes:

• extension: reuse existing OpenCLI Adapter tab groups before creating duplicates (fix(extension): reuse existing adapter tab group #1541, test(extension): cover adapter group tiebreaker #1566)
• twitter/reddit: revert over-broad persistent site sessions; commands now release tabs while keeping Adapter window reusable (fix(social): use ephemeral adapter site sessions #1569)
• xiaohongshu/rednote: unwrap page.evaluate envelopes in search adapters (fix(xiaohongshu,rednote): unwrap page.evaluate envelope in search adapter #1561)
• facebook/feed: fallback extraction for empty article nodes (fix(facebook/feed): add fallback extraction for empty article nodes #1538)
• CI: Windows native optional binding lockfile entries (fix(ci): add Windows native binding lock entries #1563)

Extension:

• bump extension package / manifest 1.0.14 → 1.0.15 for the Browser Bridge tab-group fix

Validation

• npm run build
• npm --prefix extension run typecheck
• npm --prefix extension run build
• npm --prefix extension run package:release -- --out ../extension-package-test
• npx vitest run --project unit src/execution.test.ts
• npx vitest run --project adapter clis/twitter/*.test.js clis/reddit/*.test.js clis/boss/*.test.js clis/facebook/*.test.js clis/brave/*.test.js clis/duckduckgo/*.test.js clis/yahoo/*.test.js
• git diff --check