nx_value_parse_json.nx

nx_value_parse_json.nx -- bytes -> NxValue tree (DOM, not stream). module: nishi-core.data.value_parse_json depends: nishi-core.io.syscalls, nishi-core.data.value disk_kb: 6 capability: CORE_IO wired_status: FULLY_WIRED license_tier: PUBLIC_NISHI_SUBSTRATE genealogy_id: rfc_8259_json_data_interchange + recursive_descent_parser_tradition + nishi_build_the_system_cardinal_2026 Brick #2 of the bits-up ingestion stack. Reads RFC 8259 JSON bytes and produces an NxValue tree. No upstream-source-specific knowledge -- the tree carries WHATEVER the JSON said. Inline lexer (does not import nx_json) to keep the all-syscalls.nx import topology that lets us compose against nx_dir for batch ingestion later. Same SAX semantics as nx_json but emits NxValue nodes directly. String content: span includes raw bytes between quotes; common escapes (\n \t \\ \" \/) are decoded inline; \uXXXX is NOT decoded (substrate works with raw UTF-8 in most cases; a future nx_value_decode_unicode pass can add that). Numbers: integers parsed as i64; floats parsed lossy to Q10 fixed-point (substrate convention). Caller can re-parse from str_ptr/str_len if precision matters. Recursion: bounded NX_VAL_PARSE_MAX_DEPTH per JPL Rule 2.