Added web.FileResponse to route handler response types documentation.

Modules-Routes.md

@@ -99,15 +99,18 @@ Routes are matched in registration order (first match wins). Routes defined with
 
 ## Response Types
 
-Route handlers support three return types:
+Route handlers support four return types:
 
 | Return Type | Behavior |
 |-------------|----------|
 | `dict` | Automatically serialized to JSON with `application/json` content type. |
 | `web.Response` | Returned as-is. Full control over status, headers, body. |
+| `web.FileResponse` | Serves a file from disk. Sets content type, length, and caching headers automatically. |
 | `None` | Returns a `204 No Content` response. |
 
 ```python
+from pathlib import Path
+
 from aiohttp import web
 from owlbot.api import RouteContext, on_route
 
@@ -121,6 +124,11 @@ async def api_data(ctx: RouteContext) -> dict:
 async def html_page(ctx: RouteContext) -> web.Response:
     return web.Response(text="<h1>Hello</h1>", content_type="text/html")
 
+# Static file:
+@on_route("/logo")
+async def logo(ctx: RouteContext) -> web.FileResponse:
+    return web.FileResponse(Path(__file__).parent / "static" / "logo.png")
+
 # No content:
 @on_route("/webhook", methods=["POST"])
 async def incoming_webhook(ctx: RouteContext) -> None:

Modules.md

@@ -139,7 +139,7 @@ async def status_page(ctx: RouteContext) -> web.Response:
     )
 ```
 
-Returning a `dict` automatically serializes to JSON. A `web.Response` gives full control over the output. See [HTTP Routes](Modules-Routes) for templates, URL building, and more.
+Returning a `dict` automatically serializes to JSON. A `web.Response` gives full control over the output. A `web.FileResponse` can serve static files directly from disk. See [HTTP Routes](Modules-Routes) for templates, URL building, and more.
 
 ## Context
 
@@ -225,7 +225,7 @@ async def joke(ctx: CommandContext) -> None:
 
 ### Route Responses
 
-Routes can return different response types depending on what's needed. A `dict` becomes JSON, and `web.Response` gives full control over the output:
+Routes can return different response types depending on what's needed. A `dict` becomes JSON, `web.Response` gives full control over the output, and `web.FileResponse` serves static files from disk:
 
 ```python
 from aiohttp import web