feat(omp-rpc): introduced typed event listeners and todo phase management to RPC client

- Added typed event listeners and granular event handling for all RPC notification types.
- Added set_todos RPC command and todoPhases session state field for todo phase management.
- Added RpcClient initialization parameters (thinking, tools, no_session, rpc_defaults) for startup configuration.
- Added install_headless_ui() method and todo management methods (get_todos, set_todos, clear_todos).
- Added TodoItem and TodoPhase dataclasses with parser functions for structured todo representation.
- Added RPC mode behavior: disables session title generation by default and resets workflow settings to built-in defaults.

python/omp-rpc/src/omp_rpc/__init__.py

@@ -1,7 +1,9 @@
 from .client import (
     AgentEventListener,
     ExtensionErrorListener,
+    NotificationListener,
     PromptTurn,
+    ReadyListener,
     RpcClient,
     RpcCommandError,
     RpcError,
@@ -48,6 +50,11 @@ from .protocol import (
     ThinkingConfig,
     ThinkingLevel,
     ThinkingLevelCycleResult,
+    TodoAutoClearEvent,
+    TodoItem,
+    TodoPhase,
+    TodoReminderEvent,
+    TodoStatus,
     ToolDescriptor,
     ToolExecutionEndEvent,
     ToolExecutionStartEvent,
@@ -62,6 +69,7 @@ from .protocol import (
     message_text,
     parse_notification,
     parse_session_state,
+    parse_todo_phases,
 )
 
 __all__ = [
@@ -94,9 +102,11 @@ __all__ = [
     "ModelCost",
     "ModelCycleResult",
     "ModelInfo",
+    "NotificationListener",
     "PromptTurn",
     "PythonExecutionMessage",
     "ReadyEvent",
+    "ReadyListener",
     "RetryFallbackAppliedEvent",
     "RetryFallbackSucceededEvent",
     "RpcAgentEvent",
@@ -111,6 +121,11 @@ __all__ = [
     "ThinkingConfig",
     "ThinkingLevel",
     "ThinkingLevelCycleResult",
+    "TodoAutoClearEvent",
+    "TodoItem",
+    "TodoPhase",
+    "TodoReminderEvent",
+    "TodoStatus",
     "ToolDescriptor",
     "ToolExecutionEndEvent",
     "ToolExecutionStartEvent",
@@ -126,4 +141,5 @@ __all__ = [
     "message_text",
     "parse_notification",
     "parse_session_state",
+    "parse_todo_phases",
 ]