Rename FastMCP to MCPServer (#1951)

src/mcp/server/mcpserver/exceptions.py

@@ -0,0 +1,21 @@
+"""Custom exceptions for MCPServer."""
+
+
+class MCPServerError(Exception):
+    """Base error for MCPServer."""
+
+
+class ValidationError(MCPServerError):
+    """Error in validating parameters or return values."""
+
+
+class ResourceError(MCPServerError):
+    """Error in resource operations."""
+
+
+class ToolError(MCPServerError):
+    """Error in tool operations."""
+
+
+class InvalidSignature(Exception):
+    """Invalid signature for use with MCPServer."""