feat: impl docs (#4)

The entire public api is covered with documentation in two languages - Russian and English.

the library now supports the latest three versions of python - 3.12, 3.13 and 3.14

minor design changes: now, when a Boolean flag is entered, its value is an empty string, not None.

tests have been adapted to the supported versions of python, readmi has been redesigned in two languages, German is no longer available.

mock/mock_app/routers.py

@@ -1,25 +1,10 @@
-from argenta.command import Command, PredefinedFlags, Flags, Flag, PossibleValues
-from argenta.response import Response
-from argenta import Router
+from argenta import Command, Response, Router
+from argenta.command import Flag, Flags
+
+work_router: Router = Router(title="Base points:", disable_redirect_stdout=True)
 
 
-work_router: Router = Router(title="Work points:", disable_redirect_stdout=True)
-
-flag = Flag("csdv", possible_values=PossibleValues.NEITHER)
-
-
-@work_router.command(
-    Command(
-        "get",
-        description="Get Help",
-        aliases=["help", "Get_help"],
-        flags=Flags([PredefinedFlags.PORT, PredefinedFlags.HOST]),
-    )
-)
+@work_router.command(Command("hello", flags=Flags(Flag("test")), description="Hello, world!"))
 def command_help(response: Response):
-	response.update_data({"data": [_ for _ in range(9999999)]})
-
-
-@work_router.command("run")
-def command_start_solving(response: Response):
-    print(response.get_data())
+    c = input("Enter your name: ")
+    print(f"Hello, {c}!")