nx_synthroom_lib.nx

nx_synthroom_lib.nx -- ONE CONTRACT for the synth-human room protocol (/compare/synthroom rung SR1). THE WIRE, THE TABLE AND THE DERIVATION live here exactly once, imported by the writer (nx_synthroom append), the reader (nx_synthroom replay) and the gate. A room protocol is a producer and a consumer of one wire, and this estate has measured what it costs when each is written separately: a producer and a consumer each correct in isolation can still disagree on the wire. WHAT A ROOM IS. Chaturbate's own architecture is an event bus -- tip, chatMessage, room status, user interactions -- with tip menus mapping token amounts to actions and tip-activated actuators behind them. This lib is that shape with the human replaced by a director: every interaction is ONE row in an APPEND-ONLY log, a tip menu is DATA, and the intent stream is DERIVED from the log so the same log always yields the same intents (bit-identical replay is the SR1 done rule). THREE RULES THE WIRE ENFORCES BY CONSTRUCTION: 1. A caller-supplied NONCE per event. A retry after a dropped response is the estate's most-measured hazard (a 503 often LANDED); an append is not idempotent, so the nonce is what makes a blind retry safe: a duplicate nonce is REFUSED by name, never double-applied. 2. UNKNOWN IS ITS OWN BUCKET. An unknown verb is refused on the way in, and an unparseable row is refused on the way out with its row index -- a replay never skips a row it cannot read, because the count it publishes would then be a count of what it understood, not of what happened. 3. A tip below every menu threshold maps to the DECLARED fallback intent, never to nothing. A menu with no fallback is refused at parse time so the hole is found before the first tip, not after. license_tier: ORIGINAL No hw writes (Rule 26).