App, lib, cmds: Fix mypy.explicit-override fallout

This commit adds @override decorators to approximately 300 methods
across 76 files that inherit from base classes such as AbstractCmd,
FileContext, ExecContext, Distro, SSHClient, and others.

The decorator ensures the type checker can verify that overridden
methods have compatible signatures and prevents accidental shadowing
of inherited methods without intent.

Files modified include command classes, library modules, distro
implementations, and SSH client implementations.

Assisted-by: unsloth/Qwen3.6-35B-A3B-GGUF:IQ4_NL with pi.dev v
Signed-off-by: Jan Lindemann <jan@janware.com>

src/python/jw/pkg/lib/TarIo.py

@@ -9,7 +9,7 @@ from tarfile import TarFile, TarInfo
 from .CopyContext import CopyContext
 from .ExecContext import ExecContext
 from .log import DEBUG, ERR, log
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, override
 
 if TYPE_CHECKING:
     from .base import StatResult
@@ -89,6 +89,7 @@ class TarIo(CopyContext):
 
 class TarIoTarFile(TarIo):
 
+    @override
     async def _extract(self, blob: bytes, root: str | None = None) -> None:
         tf = TarFile(fileobj = io.BytesIO(blob))
         for info in tf.getmembers():
@@ -111,7 +112,16 @@ class TarIoTarFile(TarIo):
 
 class TarIoTarExec(TarIo):
 
+    @override
+    async def _extract(self, blob: bytes, root: str | None = None) -> None:
+        cmd = ['tar']
+        if root is not None:
+            cmd += ['-C', root]
+        cmd += ['-x', '-f', '-']
+        await self.dst.run(cmd, cmd_input = blob)
+
     @property
+    @override
     def dst(self) -> ExecContext:
         ret = super().dst
         if not isinstance(ret, ExecContext):
@@ -120,10 +130,3 @@ class TarIoTarExec(TarIo):
                 'context, which only has a file context'
             )
         return ret
-
-    async def _extract(self, blob: bytes, root: str | None = None) -> None:
-        cmd = ['tar']
-        if root is not None:
-            cmd += ['-C', root]
-        cmd += ['-x', '-f', '-']
-        await self.dst.run(cmd, cmd_input = blob)