docs: add CLI documentation section with translations and code snippets; refactor mock/ to examples/, improve CLI module (bug fixes, DX, error handling)

examples/example_app/main.py

@@ -0,0 +1,26 @@
+from prompt_toolkit import HTML
+
+from argenta import App, Orchestrator
+from argenta.app import PredefinedMessages, StaticDividingLine, AutoCompleter
+from argenta.app.dividing_line.models import DynamicDividingLine
+from argenta.orchestrator import ArgParser
+from examples.example_app.routers import work_router
+
+app: App = App(
+    dividing_line=StaticDividingLine('~')
+)
+orchestrator: Orchestrator = Orchestrator()
+
+
+def main():
+    app.include_router(work_router)
+
+    app.add_message_on_startup(PredefinedMessages.USAGE)
+    app.add_message_on_startup(PredefinedMessages.AUTOCOMPLETE)
+    app.add_message_on_startup(PredefinedMessages.HELP)
+
+    orchestrator.run_repl(app)
+
+if __name__ == "__main__":
+    main()
+    

examples/example_app/routers.py

@@ -0,0 +1,18 @@
+from argenta import Command, Response, Router
+from argenta.command import Flag, Flags
+from argenta.command.flag import ValidationStatus
+
+work_router: Router = Router(title="Base points:")
+
+
+@work_router.command(
+    Command(
+        "hello",
+        flags=Flags([
+            Flag("test")
+        ]),
+        description="Hello, world!")
+)
+def command_help(response: Response):
+    n = input('sfgdheth')
+    print(f"Hello,{n} {response.input_flags.get_flag_by_name('test', with_status=ValidationStatus.VALID)}")