core, python: fix refused renames, extend the client API (#7379)

* core: do not commit refused name changes

* feat(python): add error base and missing commands

* feat(python): let callers drive startup themselves

* style(python): satisfy the linter, skip generated types

* feat(python): expose the message of a command error

* core: update query plans

* core: fix the batch limit parse error on GHC 8.10

* feat(python): reject profile images no client can render

packages/simplex-chat-python/src/simplex_chat/__main__.py

@@ -26,7 +26,7 @@ def main(argv: list[str] | None = None) -> int:
         path = _native._resolve_libs_dir(args.backend)
         print(f"libsimplex installed at: {path}")
         return 0
-    except Exception as e:
+    except Exception as e:  # noqa: BLE001 - a CLI: report any failure, don't traceback
         print(f"install failed: {e}", file=sys.stderr)
         return 1