test: add object field unknown TEXT diagnostic fixture

docs/ADVANCED_STATIC_TYPING.md

@@ -167,7 +167,13 @@ Output:
 Object Player has no field level. Check the field name or add HAS level NUMBER to the class.
 ```
 
-Both sides of this narrow field foundation are covered by validation: `tests/typecheck_object_field_good.claro` checks that `SET player.score 10` is accepted for a `HAS score NUMBER` field, `tests/typecheck_object_field_text_good.claro` checks that `SET player.name "Ada"` is accepted for a `HAS name TEXT` field, `tests/typecheck_object_field_yesno_good.claro` checks that `SET player.ready YES` is accepted for a `HAS ready YESNO` field, `tests/typecheck_object_field_bad.claro` checks the NUMBER wrong-type diagnostic, `tests/typecheck_object_field_text_bad.claro` checks the TEXT wrong-type diagnostic, `tests/typecheck_object_field_yesno_bad.claro` checks the YESNO wrong-type diagnostic, and `tests/typecheck_object_field_unknown_bad.claro` checks the unknown-field diagnostic.
+The unknown-field hint uses the value type it can see. A text-valued typo such as `SET player.nickname "Ace"` is covered separately:
+
+```text
+Object Player has no field nickname. Check the field name or add HAS nickname TEXT to the class.
+```
+
+Both sides of this narrow field foundation are covered by validation: `tests/typecheck_object_field_good.claro` checks that `SET player.score 10` is accepted for a `HAS score NUMBER` field, `tests/typecheck_object_field_text_good.claro` checks that `SET player.name "Ada"` is accepted for a `HAS name TEXT` field, `tests/typecheck_object_field_yesno_good.claro` checks that `SET player.ready YES` is accepted for a `HAS ready YESNO` field, `tests/typecheck_object_field_bad.claro` checks the NUMBER wrong-type diagnostic, `tests/typecheck_object_field_text_bad.claro` checks the TEXT wrong-type diagnostic, `tests/typecheck_object_field_yesno_bad.claro` checks the YESNO wrong-type diagnostic, `tests/typecheck_object_field_unknown_bad.claro` checks a NUMBER-valued unknown-field diagnostic, and `tests/typecheck_object_field_unknown_text_bad.claro` checks a TEXT-valued unknown-field diagnostic.
 
 This slice is intentionally small: it covers direct `NEW Class object` plus `SET object.field value` cases in one file. Broader object flows, aliases, method return checks, and richer object signatures remain future work.
 

docs/CURRENT_STATUS.md

@@ -53,7 +53,7 @@ Ready now:
 - `TYPE OF` and `CHECK TYPE`
 - typed list/map checks through `claro typecheck`
 - a narrow function/method argument check: `CHECK TYPE parameter IS TYPE` inside a function or simple object method lets `claro typecheck` accept correct checked calls and catch mismatched `DO`, `CALL ... WITH`, and `DO object.method ...` arguments
-- a narrow object-field assignment check for simple `NEW Class object` plus direct `SET object.field value` cases when the class declares `HAS field TYPE`; validation now covers correct NUMBER, TEXT, and YESNO direct assignments, NUMBER/TEXT/YESNO wrong-type diagnostics, and an unknown-field diagnostic for direct assignments to undeclared fields
+- a narrow object-field assignment check for simple `NEW Class object` plus direct `SET object.field value` cases when the class declares `HAS field TYPE`; validation now covers correct NUMBER, TEXT, and YESNO direct assignments, NUMBER/TEXT/YESNO wrong-type diagnostics, plus NUMBER-valued and TEXT-valued unknown-field diagnostics for direct assignments to undeclared fields
 
 Still needed:
 - richer typed function signatures and return values

docs/ROADMAP.md

@@ -31,7 +31,7 @@ See `CURRENT_STATUS.md` for the detailed feature matrix.
 
 1. Keep beginner-facing docs current and separate from historical release notes.
 2. Keep examples aligned with the modern simple syntax (`END`, `DO`, short `SET`, short `ASK`) while documenting older compatibility forms separately.
-3. Expand validation around typecheck diagnostics and package/networking safety. Current object-method parameter validation covers one correct `DO object.method ...` call and one wrong-type diagnostic; object-field validation covers correct NUMBER, TEXT, and YESNO direct `SET object.field value` assignments, NUMBER/TEXT/YESNO wrong-type direct assignments, and a simple unknown-field diagnostic after `NEW Class object`.
+3. Expand validation around typecheck diagnostics and package/networking safety. Current object-method parameter validation covers one correct `DO object.method ...` call and one wrong-type diagnostic; object-field validation covers correct NUMBER, TEXT, and YESNO direct `SET object.field value` assignments, NUMBER/TEXT/YESNO wrong-type direct assignments, and simple NUMBER-valued plus TEXT-valued unknown-field diagnostics after `NEW Class object`.
 4. Add small examples for each foundation feature before adding bigger syntax.
 
 ## Complete-platform milestones