chore(spec): regenerate docs references on the merged tree

os-regen-merge.sh step 2 took origin/main's side of the generated
`content/docs/references/api/contract.mdx` (both sides had moved it — PR
#16783 on main, the `refusal` row here); the pre-commit collection point
then asked for `gen:schema && gen:docs` on the merged tree, which re-derives
the page with both sides' content.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MkQhmuuJAVDjmeWNixwDDH

Author: claude

content/docs/references/api/contract.mdx

@@ -27,7 +27,7 @@ const result = ApiErrorSchema.parse(data);
 
 | Property | Type | Required | Description |
 | :--- | :--- | :--- | :--- |
-| **code** | `Enum<'VALIDATION_ERROR' \| 'INVALID_FIELD' \| 'MISSING_REQUIRED_FIELD' \| 'INVALID_FORMAT' \| 'VALUE_TOO_LONG' \| 'VALUE_TOO_SHORT' \| 'VALUE_OUT_OF_RANGE' \| … +322 more>` | ✅ | Error code (e.g. VALIDATION_ERROR; StandardErrorCode ∪ the ledger the serving side registers — ERROR_CODE_LEDGER for framework packages) |
+| **code** | `Enum<'VALIDATION_ERROR' \| 'INVALID_FIELD' \| 'MISSING_REQUIRED_FIELD' \| 'INVALID_FORMAT' \| 'VALUE_TOO_LONG' \| 'VALUE_TOO_SHORT' \| 'VALUE_OUT_OF_RANGE' \| … +325 more>` | ✅ | Error code (e.g. VALIDATION_ERROR; StandardErrorCode ∪ the ledger the serving side registers — ERROR_CODE_LEDGER for framework packages) |
 | **declaredCode** | `string` | optional | The producer-declared code, verbatim, when it is not a member of the closed `code` vocabulary — the open, author-authored channel (app-specific spellings; ADR-0112) |
 | **message** | `string` | ✅ | Readable error message |
 | **userMessage** | `string` | optional | Producer-marked user-facing refusal text, verbatim. Present exactly when the producer opted in at throw time; consumers render it to end users and keep their generic substitution for anything unmarked. Status-agnostic; never replaces `message`. |
@@ -135,6 +135,7 @@ const result = ApiErrorSchema.parse(data);
 * `DATASET_INVALID`
 * `DATASOURCE_ADMIN_ERROR`
 * `DELEGABLE_SCOPE_FAILED`
+* `DELETE_HOOK_RESULT_NOT_WRITE_SHAPE`
 * `DELIVERY_NEVER_SENT`
 * `DELIVERY_NOT_ELIGIBLE`
 * `DESTRUCTIVE_CHANGE`
@@ -186,6 +187,7 @@ const result = ApiErrorSchema.parse(data);
 * `FILTER_TOKEN_UNKNOWN`
 * `FILTER_TOKEN_UNRESOLVED`
 * `FIND_HOOK_RESULT_NOT_ARRAY`
+* `FIND_ONE_HOOK_RESULT_NOT_RECORD`
 * `FLOW_CONVERSION_CONFLICT`
 * `FLOW_DISABLED`
 * `FLOW_FAILED`
@@ -357,6 +359,7 @@ const result = ApiErrorSchema.parse(data);
 * `UNSUPPORTED`
 * `UNSUPPORTED_QUERY_PARAM`
 * `UNSUPPORTED_TRANSFORM`
+* `UPDATE_HOOK_RESULT_NOT_WRITE_SHAPE`
 * `UPDATE_ID_MISMATCH`
 * `UPLOAD_SESSION_EXPIRED`
 * `UPLOAD_SESSION_NOT_FOUND`