feat: improve task execution, verification and packaging

Add execution incidents, action bursts and shared Flash history.

Expose verification and Explorer settings with streamed check results.

Support graceful cancellation, recording recovery and bundled UI resources.

Add CI quality checks and clean up comments and documentation.

artemis/graph/state.py

@@ -124,6 +124,18 @@ class State(BaseModel):
     last_execution_result: Annotated[
         dict | None, "Last execution result from validator", take_last
     ] = None
+    open_incident: Annotated[
+        dict | None,
+        "Execution incident (blocked/failed terminal action) still awaiting the"
+        " Operator's resolution; None once a later action executes successfully",
+        take_last,
+    ] = None
+    last_closed_incident: Annotated[
+        dict | None,
+        "The incident the most recent successful terminal action closed (with"
+        " closed_at_step); rendered once so the Operator settles the original intent",
+        take_last,
+    ] = None
     subagent_calls: Annotated[
         list[str], "List of sub-agent calls in current session", take_last
     ] = []