chore: Update SDK documentation (#4096)

docs/python-sdk/fastmcp-apps-form.mdx

@@ -1,69 +0,0 @@
----
-title: form
-sidebarTitle: form
----
-
-# `fastmcp.apps.form`
-
-
-FormInput — a Provider that collects structured input from the user.
-
-Define a Pydantic model for the data you need, and ``FormInput``
-generates a form UI. The user fills it out, the submission is
-validated, and an optional callback processes the result.
-
-Requires ``fastmcp[apps]`` (prefab-ui).
-
-Usage::
-
-    from pydantic import BaseModel
-    from fastmcp import FastMCP
-    from fastmcp.apps.form import FormInput
-
-    class ShippingAddress(BaseModel):
-        street: str
-        city: str
-        state: str
-        zip_code: str
-
-    mcp = FastMCP("My Server")
-    mcp.add_provider(FormInput(model=ShippingAddress))
-
-
-## Classes
-
-### `FormInput` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/apps/form.py#L88" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
-
-
-A Provider that collects structured input via a Pydantic model.
-
-Define a model for the data you need, and ``FormInput`` generates
-a form from it using ``Form.from_model()``. Field types, labels,
-descriptions, and validation are all derived from the model.
-
-Optionally provide an ``on_submit`` callback to process the
-validated data. The callback receives a model instance and returns
-a string that goes back to the LLM. Without a callback, the
-validated JSON is sent directly.
-
-Example::
-
-    from pydantic import BaseModel
-    from fastmcp import FastMCP
-    from fastmcp.apps.form import FormInput
-
-    class Contact(BaseModel):
-        name: str
-        email: str
-
-    mcp = FastMCP("My Server")
-    mcp.add_provider(FormInput(model=Contact))
-
-With a callback::
-
-    def save_contact(contact: Contact) -> str:
-        db.insert(contact.model_dump())
-        return f"Saved {contact.name}"
-
-    mcp.add_provider(FormInput(model=Contact, on_submit=save_contact))
-