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/__init__.py

@@ -1,5 +1,6 @@
 """SimpleX Chat — Python client library for chat bots."""
 
+from . import util as util  # re-export the util namespace
 from ._version import __version__
 from .api import (
     ChatApi,
@@ -32,17 +33,16 @@ from .bot import (
     VideoMessage,
     VoiceMessage,
 )
-from .core import ChatAPIError, ChatInitError, CryptoArgs, MigrationConfirmation
-from . import util as util  # re-export the util namespace
+from .core import ChatAPIError, ChatError, ChatInitError, CryptoArgs, MigrationConfirmation
 
 __all__ = [
-    "__version__",
     "Bot",
     "BotCommand",
     "BotProfile",
     "ChatAPIError",
     "ChatApi",
     "ChatCommandError",
+    "ChatError",
     "ChatInitError",
     "ChatMessage",
     "Client",
@@ -68,5 +68,6 @@ __all__ = [
     "UnknownMessage",
     "VideoMessage",
     "VoiceMessage",
+    "__version__",
     "util",
 ]