huge refactor of the entire codebase, with the goal of improving maintainability, readability, and extensibility. This commit includes changes to almost every file in the project, including:

cmdnat/telegram.py

@@ -8,10 +8,18 @@ from SYS.cmdlet_spec import Cmdlet, CmdletArg
 from SYS.logger import log
 from SYS.result_table import Table
 from SYS import pipeline as ctx
+from ProviderCore.registry import get_plugin
 from cmdnat._parsing import has_flag as _has_flag, normalize_to_list as _normalize_to_list
 
 _TELEGRAM_PENDING_ITEMS_KEY = "telegram_pending_items"
 
+
+def _get_telegram_provider(config: Dict[str, Any]) -> Any:
+    provider = get_plugin("telegram", config)
+    if provider is None:
+        raise RuntimeError("Telegram plugin is not registered")
+    return provider
+
 def _extract_chat_id(chat_obj: Any) -> Optional[int]:
     try:
         if isinstance(chat_obj, dict):
@@ -119,10 +127,8 @@ def _extract_file_path(item: Any) -> Optional[str]:
 
 
 def _run(_result: Any, args: Sequence[str], config: Dict[str, Any]) -> int:
-    from Provider.telegram import Telegram
-
     try:
-        provider = Telegram(config)
+        provider = _get_telegram_provider(config)
     except Exception as exc:
         log(f"Telegram not available: {exc}", file=sys.stderr)
         return 1