feat: add typed error message templates and stable replay snapshots

examples/contracts/errorParams.api

@@ -0,0 +1,48 @@
+syntax = "v1"
+
+errorCatalog CommonErrors (
+    defaultStatus: 200
+    errors: {
+        "TextTooLong": {
+            "key": "TEXT_TOO_LONG",
+            "code": 400002,
+            "message": "{label}不能超过{max}个字符",
+            "params": [
+                {"name": "label", "type": "string", "example": "企业名称"},
+                {"name": "max", "type": "int", "example": 100}
+            ]
+        },
+        "UsernameInvalid": {"key": "USERNAME_INVALID", "code": 400003, "message": "用户名格式不正确"},
+        "ResourceDenied": {
+            "key": "RESOURCE_DENIED", "status": 403, "code": 403001,
+            "message": "{label}不可用",
+            "params": [{"name": "label", "type": "string", "example": "资源"}]
+        }
+    }
+)
+
+response CommonResponse (
+    codeType: int32
+    successCode: 0
+    errorCode: 9999
+    body: {"code": "${code}", "msg": "${message}", "data": "${data}"}
+    dataMode: always
+)
+
+type TokenResponse {
+    Token string `json:"token"`
+}
+
+@server (
+    group: account
+    response: CommonResponse
+    errors: TextTooLong, UsernameInvalid, ResourceDenied
+)
+service error-params-api {
+    @handler token
+    post /token returns (TokenResponse)
+
+    @response raw
+    @handler raw
+    get /raw returns (TokenResponse)
+}