docs(spec): regenerate the error-code ledger references

Claude-Session: https://claude.ai/code/session_01D6F9axfoPzR7t8G1J7Ytzz
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

content/docs/references/api/contract.mdx

@@ -28,7 +28,7 @@ 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' \| … +340 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' \| … +341 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`. |
@@ -356,6 +356,7 @@ const result = ApiErrorSchema.parse(data);
 * `STACK_SINGLE_APP_VIOLATION`
 * `STACK_TRIGGER_CAPABILITY_REQUIRED`
 * `STACK_UNMANAGED_INSTALL_UNCOPYABLE`
+* `STACK_WEBHOOK_CAPABILITY_REQUIRED`
 * `STORED_TYPE_NOT_CANONICAL`
 * `STORE_UNAVAILABLE`
 * `SUGGESTION_CONFIRM_FAILED`

content/docs/references/api/error-code-ledger.mdx

@@ -523,6 +523,7 @@ const result = ErrorCode.parse(data);
 * `STACK_SINGLE_APP_VIOLATION`
 * `STACK_TRIGGER_CAPABILITY_REQUIRED`
 * `STACK_UNMANAGED_INSTALL_UNCOPYABLE`
+* `STACK_WEBHOOK_CAPABILITY_REQUIRED`
 * `STORED_TYPE_NOT_CANONICAL`
 * `STORE_UNAVAILABLE`
 * `SUGGESTION_CONFIRM_FAILED`