[Schro-code]

Why

Refs #1467. #1129 retired Suggest, and with it the only prompt that named a language for generated label/description. The 0061 agent asks for "the language of the ontology", and that fails in two cases:

• An empty base has no ontology language. This case is more common since A base with no properties still queues the ontology agent once enough signatures are unbound #1336.
• A base that started from an English pack has an English one, even when its documents are not English.

Labels had no language rule at all. On one Spanish base, a single round left 183 class proposals, and about two thirds of them had English definitions.

What changes

One rule in the agent's system prompt (crates/utopia-extract/src/ontology_agent.rs): labels and definitions are written in the language of the documents, meaning the phrases, kind words and quotes the prompt already carries, even where the ontology or the instructions use another.

This is the rule question_agent.rs:53 already gives competency questions, which came out in Spanish on the same base. 0004 decision 3 says the description follows the corpus; this rule reads the corpus directly, so it holds for any language, including ones ontology_lang cannot store.

Not in this PR:

• Reading ontology_lang itself. That is the alternative in The ontology agent never reads a base's ontology_lang, so its labels and definitions come out in whichever language the model picks #1467, passing the value through a lang_name(); it is a small follow-up if you prefer the setting to decide.
• Rewriting proposals that already exist. signatures_already_proposed keeps the agent from proposing a shape again.
• Other model-written reasons.

How it was checked

• On macOS (arm64), on dev @ 1d94b53:

  • cargo fmt --all --check: clean.
  • cargo clippy --locked --workspace --all-targets -- -D warnings: clean.
  • cargo test --locked --workspace: 1421 passed, 0 failed, 3 ignored. UTOPIA_DATABASE_URL was not set, so the store's SQL tests skipped; this change touches no SQL.

• The assertion added to the_prompt_names_every_input_once fails on dev, where the prompt says "language of the ontology".

• Not run against a model in this PR. The behaviour it fixes was observed on a fork running this agent unchanged (The ontology agent never reads a base's ontology_lang, so its labels and definitions come out in whichever language the model picks #1467).

Before review

• Every commit is signed off (git commit -s)
• cargo fmt --all --check, cargo clippy --workspace --all-targets -- -D warnings and cargo test --workspace pass

[WaylandYang]

Thanks for finding this. 0004 decisions 3 and 5 make `kb.ontology_lang` the language of generated labels and descriptions, and the caller states it. The documents' language would ignore that setting on a base set to `zh` with English documents. Please take the alternative from #1467: pass the base's `ontology_lang` into the prompt, for labels and definitions, with keys staying ASCII. The stale `lang_name()` mention in 0004 decision 5 should be updated in the same PR.