feat(dsi): add a native search keyboard endpoint

Accept keyboard submissions and forward the query with its selected search scope.

hatenadir/ds/v2-xx/search.kbd.py

@@ -0,0 +1,16 @@
+from twisted.web import resource
+
+from hatena import request_args
+from reximemo import search_keyboard_response
+
+
+class PyResource(resource.Resource):
+    isLeaf = True
+
+    def render_POST(self, request):
+        kind = "creators" if (request_args(request).get("kind") or [""])[0] == "creators" else "flipnotes"
+        return search_keyboard_response(request, kind)
+
+    def render_GET(self, request):
+        request.setResponseCode(405)
+        return b""