feat: add plugin runtime and cross-device task orchestration

artemis/drivers/base.py

@@ -60,6 +60,7 @@ class ScreenData(BaseModel):
     height: int = Field(default=2400, description="Device screen height in pixels")
     timestamp: float = Field(default_factory=time.time, description="Capture timestamp")
     platform: str = Field(default="android", description="Platform identifier")
+    observation_text: str = ""
 
     model_config = ConfigDict(arbitrary_types_allowed=True)
 

artemis/drivers/factory.py

@@ -33,6 +33,11 @@ logger = get_logger(__name__)
 
 def create_driver(ctx: "ArtemisContext") -> BaseDeviceDriver:
     """Instantiates the appropriate BaseDeviceDriver based on the runtime context."""
+    if getattr(ctx, "execution_target", None) == "computer":
+        from artemis.plugins.desktop import PluginScreenDriver
+
+        return PluginScreenDriver(ctx)
+
     # 1. Cloud mode check. Cloud devices are reached through the gateway's
     # RemoteUIAutomatorClient; ARTEMIS_HIERARCHY_BACKEND does not apply there
     # because the Accessibility Helper needs a local adb forward.