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The hero has a WebGL ribbon with an SVG fallback.",[202,184,203,186,204],"24 pages: 19 RU, 4 EN and a 404 - home, a catalog and 5 projects (plan, area, timeline, materials, stages, a Gantt chart, 4 drawings), services, how we work, prices with an estimator, about, FAQ, a 4-article journal, contacts with a placeholder form, privacy policy","Strict CSP with no inline code; site-meta kit: robots, sitemap with hreflang, llms.txt, security.txt; JSON-LD Organization, Service, Article, FAQPage","Deployed to Cloudflare Pages",[206,207,208,209],"git clone \u003Crepository on request> kladka-site","cd kladka-site","npm install","npm run dev",[211,212,213],"The English version covers only the home page, catalog, prices and contacts.","Text inside the SVG drawings uses a system font.","Lighthouse was not run.",{"slug":73,"title":74},[216,221,226,231],{"slug":217,"lang":5,"title":218,"date":219,"summary":220,"project":135,"minutes":60},"double-booking","Double booking: a transaction plus a partial UNIQUE index","2026-10-20","How booking-slots protects against two clients booking the same time at once, and how that protection is tested.",{"slug":222,"lang":5,"title":223,"date":219,"summary":224,"project":225,"minutes":150},"lease-and-fencing","Lease and fencing: how a queue neither loses a job nor lets a zombie finish it twice","A worker can crash, stall, or wake up after its job was taken by someone else. 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