docs: add OpenAPI-first wiki (overview, components, use cases for templates/client/codegen, design, security, error handling, testing) and refresh lib docs index

openapi_first/errors.py

@@ -40,6 +40,14 @@ class MissingOperationHandler(OpenAPIFirstError):
     """
     Raised when an OpenAPI operation cannot be resolved to a handler.
 
+    Args:
+        path (str):
+            The HTTP path declared in the OpenAPI specification.
+        method (str):
+            The HTTP method (as declared in the OpenAPI spec).
+        operation_id (str | None):
+            The operationId declared in the OpenAPI spec, if present.
+
     Notes:
         **Scenarios:**
 
@@ -55,17 +63,6 @@ class MissingOperationHandler(OpenAPIFirstError):
     """
 
     def __init__(self, *, path: str, method: str, operation_id: str | None = None):
-        """
-        Initialize the error.
-
-        Args:
-            path (str):
-                The HTTP path declared in the OpenAPI specification.
-            method (str):
-                The HTTP method (as declared in the OpenAPI spec).
-            operation_id (str | None):
-                The operationId declared in the OpenAPI spec, if present.
-        """
         if operation_id:
             message = (
                 f"Missing handler for operationId '{operation_id}' "