docs(provenance): clarify approved Classic reuse

bin/validate

@@ -906,10 +906,25 @@ for required_text in \
   '# Atrinik' \
   'Atrinik is an open-source cooperative fantasy role-playing world' \
   'GPL-licensed [Atrinik Classic](https://github.com/atrinik/classic)' \
-  'MIT-licensed Go, Rust,' \
+  'next-generation MIT' \
   'They do not yet form a complete game release.' \
   'Game content and' \
   'media remain separately licensed' \
+  'historical MIT provenance registry' \
+  'exact, independently separable' \
+  'copy it, migrate or port it, translate or adapt it, or' \
+  'each selected contribution' \
+  "applicable named grantor's original work" \
+  'solely authored by that grantor' \
+  "row's temporal scope" \
+  'only when each independently' \
+  'satisfies one row' \
+  'jointly authored' \
+  'contributions, generated output, or' \
+  'inseparable mixed work' \
+  'does not relicense the source' \
+  'repositories or by itself' \
+  'GPL dependency, link, or bundle' \
   '[Play Atrinik Classic](https://atrinik.org/downloads/)' \
   '[Follow the next-generation roadmap](https://github.com/atrinik/atrinik/issues/168)' \
   'Direct human contributions are welcome.'; do

community-health/profile/README.md

@@ -6,11 +6,25 @@ Atrinik is an open-source cooperative fantasy role-playing world of islands,
 ruins, and crystal-lit mysteries.
 
 The maintained GPL-licensed [Atrinik Classic](https://github.com/atrinik/classic)
-line keeps the world playable today. In parallel, fresh MIT-licensed Go, Rust,
-and Protobuf foundations are being developed as a separate clean-room
-implementation. They do not yet form a complete game release. Game content and
+line keeps the world playable today. In parallel, a next-generation MIT
+implementation is being developed with Go, Rust, and Protobuf foundations.
+They do not yet form a complete game release. Game content and
 media remain separately licensed under the terms in their source repositories.
 
+Classic and [tools](https://github.com/atrinik/tools) remain GPL as distributed.
+Under the
+[historical MIT provenance registry](https://github.com/atrinik/atrinik/blob/main/docs/PROVENANCE.md),
+an MIT destination may inspect exact, independently separable material as
+source reference, copy it, migrate or port it, translate or adapt it, or
+relicense it only after the canonical audit proves each selected contribution
+is the applicable named grantor's original work. Each contribution must be
+solely authored by that grantor and fall within the row's temporal scope.
+Distinct contributions may cite different rows only when each independently
+satisfies one row. Rows cannot be combined to cover jointly authored
+contributions, generated output, or inseparable mixed work. Later material needs
+contemporaneous compatible permission. This does not relicense the source
+repositories or by itself approve a GPL dependency, link, or bundle.
+
 ## Start here
 
 - [Play Atrinik Classic](https://atrinik.org/downloads/)
@@ -24,8 +38,8 @@ media remain separately licensed under the terms in their source repositories.
 | --- | --- |
 | [classic](https://github.com/atrinik/classic) | The playable, maintained C17 client, server, editor, libraries, and protocol |
 | [content](https://github.com/atrinik/content) | Atrinik's authored maps, quests, archetypes, and world data |
-| [client](https://github.com/atrinik/client) | Clean-room Rust and SDL3 next-generation client foundation |
-| [server](https://github.com/atrinik/server) | Clean-room Go authoritative server foundation |
+| [client](https://github.com/atrinik/client) | Rust and SDL3 foundation for the next-generation MIT client |
+| [server](https://github.com/atrinik/server) | Go foundation for the next-generation MIT authoritative server |
 | [protocol](https://github.com/atrinik/protocol) | Game Protocol 1 schemas, QUIC specifications, and Go/Rust bindings |
 | [renderer](https://github.com/atrinik/renderer) | Shared Rust GPU renderer for clients, editors, and tools |