1.0.13

• Judge bat hits by the rotated bat's box: at any swing angle, the ball hits when its center is within 20px of the 20×120px bat box, and contact between the 30ms checks also counts, so the bat no longer passes through the ball between checks (#47). The old rule, which allowed hits from 20px above to 70px below the top edge of the bat's bounding box, is removed.
• Measure vector length from both components, and take random ranges in (min, max) order, so the pitch speed is 10–30px and the horizontal speed after a hit is -30 to 30px (#47).
• Document the bat hit rules with figures in the README (#47).
• Correct comments and documents, and remove unused Vue data, dependencies (babel-plugin-transform-runtime and core-js) and settings (#46).
• Clear lint and format warnings, add yarn lint and yarn format:check, and build before running tests (#45).
• Install the nginx image packages without prompting, so docker compose up -d no longer stops while building web/Dockerfile (#48). The production nginx is unchanged.
• Update prettier to 3.9.10, eslint-plugin-prettier to 5.5.7, launch-editor to 2.14.2, fast-uri to 3.1.9 and serialize-javascript to 7.1.4 (#43, #44, #49, #50).
• Validate with a frozen install, the production build and all 110 tests in Node 24.
• Confirm the production JavaScript and CSS match their integrity hashes.