tripocli v2.0.0：Tripo AI 3D 生成与加工 CLI（面向 Agent 与开发者，纯 Python 标准库、零第三方依赖）

覆盖文生 3D、图生 3D、多视图、批量生成，以及重拓扑、绑定、动画、智能分割、
纹理、PBR、智能 UV、部件补全、格式导出与下载。

代码组织：一个功能一个模块（tripo/features/），入口薄壳 tripocli.py。

tripo/errors.py

@@ -0,0 +1,53 @@
+"""Error types shared across the package."""
+
+
+class TripoAPIError(Exception):
+    """An error returned by the Tripo API (or a transport failure talking to it)."""
+
+    def __init__(self, message, code=None, suggestion=None, raw=None):
+        super().__init__(message)
+        self.code = code
+        self.suggestion = suggestion
+        self.raw = raw
+
+    def __str__(self):
+        msg = f"[Tripo Error {self.code}] {super().__str__()}"
+        if self.suggestion:
+            msg += f" (Suggestion: {self.suggestion})"
+        return msg
+
+    @property
+    def is_auth_error(self):
+        """True when the JWT is missing/expired and a re-mint from the cookie could help."""
+        return self.code in (401, 403, 1002)
+
+
+class TripoTimeout(Exception):
+    """A task did not reach a terminal state within the allotted time."""
+
+
+# Signals that an account is out of credits.  The exact server code is not
+# confirmed, so the message text is the practical trigger; extra codes can be
+# added without touching code via config ``insufficient_credit_codes``.
+INSUFFICIENT_KEYWORDS = (
+    "insufficient",
+    "not enough",
+    "no enough",
+    "balance",
+    "credit",
+    "quota",
+    "recharge",
+    "积分",
+    "余额",
+    "额度不足",
+)
+
+
+def is_insufficient_credits(error, extra_codes=()):
+    """True when ``error`` looks like "this account has run out of credits"."""
+    if not isinstance(error, TripoAPIError):
+        return False
+    if error.code is not None and error.code in set(extra_codes):
+        return True
+    text = str(error).lower()
+    return any(keyword in text for keyword in INSUFFICIENT_KEYWORDS)