vision / d6fdc1636fd5

add base64 family (PURE): bytes encoded as base64 / without padding / url-safe (postfix exprs), and text decoded from base64 giving name (fallible statement, but-if); RFC 4648 byte-correct, decode rejects invalid; +base64 marker/decode tests, 1187/1187

dev · yesterday · 2026-06-24 · 631.5 KB

session: pile A world primitives · agent: claude-opus-4-8

parent: 1e5268162efc