Changelog

MCP is now standard JSON-RPC 2.0 (anonymous /mcp plus profile /mcp/:token, 6 tools); new hot-topics / fingerprint / version endpoints and per-item Markdown export; selected and profile RSS now carry full-text HTML with images; robots welcomes AI crawlers on /api/public/ and JSON-LD ships site-wide; anonymous requests are rate-limited at 60 req/min per IP.

Plans are now Free / Plus / Pro; the feed stays complete with premium items shown as teasers (summary visible, AI commentary locked); access tokens are free for every registered user, public API/RSS accept token credentials with per-plan daily metering; Plus/Pro unlock custom sources.

The site is reorganized into AI / Tech / Finance channels (per-channel home, daily, hot events and tag pages); the /en English track covers the whole site with legacy URLs redirected via 301; an on-site feedback form is added.

Site-wide theme packs (Terminal / Observatory and more) with Terminal dark as the default; light/dark and theme choices persist across visits.

Site-wide i18n: zh-CN default plus /en and 8 locale paths, with on-demand AI translation for item details (X-Feed-Content-Locale reports the served language). New /search with keyword, category, time, min-score and source-tier filters. New per-category RSS at /feed/category/{slug}.xml; items gain five-dimension scores, AI commentary and source-tier display. API change: invalid lang now returns 400 on all public endpoints; OpenAPI bumped to 3.1.0.

Phase 2 begins: Next.js, the user workspace, intelligence profiles, MCP, the AI-native task state machine and the companion assistant.