4.9.0

API

API v4.9.0 — Credit, Avatar, Barcode.

Added endpoint GET /credit: generates fictitious Luhn-valid credit card numbers. Supports four brands (visa, mastercard, amex, discover) with correct IIN prefixes, a count parameter (1–10), and a format parameter (full or masked). Returns card number, formatted number, brand, expiry date, and CVV.
Added endpoint GET /avatar: generates deterministic avatar images from a seed string. Supports two types (identicon with a 5×5 mirrored grid, pixel with an 8×8 grid), PNG and SVG output, configurable size (50–2000 px), and a custom background color.
Added endpoint GET /barcode: generates barcode images from a data string. Supports Code 128 (Set B), EAN-13, EAN-8, UPC-A, and Code 39. EAN check digits are computed automatically if omitted and validated if provided. Renders as SVG (default) or PNG.
GET /personal now uses the /credit module to generate card data: numbers are Luhn-valid, CVV length is consistent with the brand (4 digits for Amex), and the formatted number uses the correct spacing pattern.
GET /cron scheduler optimized: months, days, and hours that do not match the cron expression are now skipped directly, significantly reducing computation time on restrictive expressions.
Added prepare script in package.json: tsc now runs automatically before npm publish.
Added .npmignore: src/, tests/, config files, and development assets are excluded from the published npm package.

Added documentation pages for Credit, Avatar, and Barcode.
Added all three endpoints to the Playground registry and sidebar.
Updated Personal documentation: cvc field type changed to string, card description updated to reflect Luhn-valid generation.
Added "How it works" explanations to Geo (Haversine formula, great-circle distance, bearing) and Statistics (population formulas, mode ties, decimal precision).
Removed redundant use case tips from Token, Avatar, and Credit pages.