refactor: add slots=True to all remaining dataclasses for consistency

Two dataclasses (_ToolConfig, _ScrollbarMetrics) already used slots=True
but the other nine did not. This adds it to ProcessResult, AgentResult,
RunResult, _StreamResult, Command, RunConfig, RunState, Event, and
ManagedRun. Slots prevent accidental dynamic attribute assignment,
reduce per-instance memory, and speed up attribute access.

Co-authored-by: Ralphify <noreply@ralphify.co>

Author: 2 people

src/ralphify/_agent.py

@@ -222,7 +222,7 @@ def _deliver_prompt(proc: subprocess.Popen[Any], prompt: str) -> None:
             pass
 
 
-@dataclass
+@dataclass(slots=True)
 class AgentResult(ProcessResult):
     """Result of running the agent subprocess."""
 
@@ -233,7 +233,7 @@ class AgentResult(ProcessResult):
     captured_stderr: str | None = None
 
 
-@dataclass(frozen=True)
+@dataclass(frozen=True, slots=True)
 class _StreamResult:
     """Accumulated output from reading the agent's JSON stream."""
 

src/ralphify/_events.py

@@ -174,7 +174,7 @@ class LogMessageData(TypedDict):
 """Union of all typed event data payloads."""
 
 
-@dataclass
+@dataclass(slots=True)
 class Event:
     """A structured event emitted by the run loop."""
 

src/ralphify/_output.py

@@ -29,7 +29,7 @@
 SESSION_KWARGS: dict[str, Any] = {} if IS_WINDOWS else {"start_new_session": True}
 
 
-@dataclass
+@dataclass(slots=True)
 class ProcessResult:
     """Base result for any subprocess execution.
 

src/ralphify/_run_types.py

@@ -67,7 +67,7 @@ def reason(self) -> StopReason:
 }
 
 
-@dataclass
+@dataclass(slots=True)
 class Command:
     """A named command from RALPH.md frontmatter."""
 
@@ -76,7 +76,7 @@ class Command:
     timeout: float = DEFAULT_COMMAND_TIMEOUT
 
 
-@dataclass
+@dataclass(slots=True)
 class RunConfig:
     """All settings for a single run.
 
@@ -99,7 +99,7 @@ class RunConfig:
     credit: bool = True
 
 
-@dataclass
+@dataclass(slots=True)
 class RunState:
     """Observable state for a run.
 

src/ralphify/_runner.py

@@ -16,7 +16,7 @@
 from ralphify._output import SUBPROCESS_TEXT_KWARGS, ProcessResult, collect_output
 
 
-@dataclass
+@dataclass(slots=True)
 class RunResult(ProcessResult):
     """Result of running a command or script."""
 

src/ralphify/manager.py

@@ -14,7 +14,7 @@
 from ralphify.engine import run_loop
 
 
-@dataclass
+@dataclass(slots=True)
 class ManagedRun:
     """A run bundled with its background thread and event queue.