lib.ExecContext: Fix error message in _put()

_put() catches a failure of the remote command sequence and logs
"Failed to get <path> from <root>", a phrase copied over from the
get() path. This path, however, pushes content, so the message
describes the wrong operation.

Log a put-oriented message instead.

Assisted-by: unsloth/Qwen3.8-27B-GGUF:Q4_K_M with pi.dev v0.84.2
Signed-off-by: Jan Lindemann <jan@janware.com>

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

@@ -560,7 +560,7 @@ class ExecContext(Base):
                     await self.erase(tmp_file)
                 await self.close()
         except Exception as e:
-            msg = f'Failed to get {path} from {self.root} ({str(e)})'
+            msg = f'Failed to put content to {path} on {self.root} ({str(e)})'
             if throw:
                 raise Exception(msg)
             log(ERR, msg)