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The README now has a clear first-run entry, with a Russian quickstart and an offline visual guide in both languages.
Download start.html and open it locally for installation, an intentionally failing example, a passing comparison and the path to your own inputs. The guide has EN/RU switching and copyable commands. The source ZIP includes all example inputs. Python packages need Python 3.11+; CheckReach CLI needs Node 22/24 and its browser workspace needs no npm installation.
Validation: 44 tests; all 6 CI jobs passed for 510d94454fa9b4ac0e45ef084af39640842bf775. Local guide commands produced the expected exits. The installable package was checked separately. Full evidence is in verification.json.
Read the README for exact scope and options. SHA256SUMS.txt covers all other assets. These are early releases, using synthetic examples; no external adoption or production guarantee is implied.