Put work items in the state store, and bind the log to them (M1.1)

Development Plan M1.1, as discussed.

- Schema v4: a work_items table (id, scope, title, status, outcome,
  position, data) and an agent row whose active_item points at one
  (NULL: idle). Canonical events and intents carry their work item, and
  events their actor. Older stores are refused with a clear message:
  there was no production data, so no migration (the mechanism stays).
- The log is reached through a Transcript bound to one work item and
  one actor: store.transcript(item, actor) reads only that item and
  writes with both. The planner, executor, delegation and expert desk
  get one per call from the orchestrator instead of holding the store,
  so a component can neither read another task's events (the planner
  read every earlier task's, #78) nor write without attribution.
  store.all_events() is kept for readers that span items (evaluation
  capture, dumps). Intents are begun through the transcript or with
  work_item=, so each belongs to its item.
- The orchestrator opens a work item on 'use', closes it with its
  outcome (completed or abandoned), and carries what the operator said
  while idle into the new item as copies with their origin, so a task
  sent before 'use' is still planned from (D1). control.py keeps its
  state machine through get_state()/transition(), now over the active
  work item, until M2.6 retires it.
- nisse_dev.dump shows work items and each event's item and actor.

Tests: test_work_items.py (scoping, attribution, intent ownership,
restart, outcomes, carried messages, a second task never seeing the
first); the suites updated for the per-call transcript.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPQ14L3LikyefCMFBqEbKE

nisse-dev/tests/test_dump.py

@@ -9,34 +9,43 @@ from nisse_dev.state import StateStore
 
 def store_with_a_run(path: Path) -> None:
     store = StateStore(path, oplog=OpLog("nisse-dev", io.StringIO()))
+    store.transcript(None, "operator").append(
+        UserMessage(text="hello before use", source="matrix")
+    )
     store.transition(
         "AWAIT_ARCH_SIGNOFF",
         cause="test",
         project="demo",
         data={"task_id": "demo-1", "gate": {"name": "arch", "rev": 1}},
     )
-    store.append_event(UserMessage(text="Add a truncate helper", source="matrix"))
-    store.append_event(PlanSubmitted(plan="x" * 500, model="opus"))
-    store.append_event(
+    log = store.transcript("demo-1", "operator")
+    log.append(UserMessage(text="Add a truncate helper", source="matrix"))
+    log.as_actor("planner").append(PlanSubmitted(plan="x" * 500, model="opus"))
+    executor = log.as_actor("executor")
+    executor.append(
         ToolCall(call_id="c1", tool="run_command", arguments={"command": "ls"})
     )
-    store.append_event(ToolResult(call_id="c1", result="README.md", success=False))
-    store.begin_intent("open_pr", {"branch": "b"}, cause="test")
+    executor.append(ToolResult(call_id="c1", result="README.md", success=False))
+    log.begin_intent("open_pr", {"branch": "b"}, cause="test")
     store.close()
 
 
-def test_the_dump_shows_state_intents_and_each_event(tmp_path: Path) -> None:
+def test_the_dump_shows_items_intents_and_each_event_with_its_actor(
+    tmp_path: Path,
+) -> None:
     db = tmp_path / "state.db"
     store_with_a_run(db)
     text = render(db)
+    assert "active work item: demo-1" in text
     assert (
-        "state: AWAIT_ARCH_SIGNOFF  project: demo  task: demo-1  gate: arch rev-1"
-        in text
+        "demo-1  open  position: AWAIT_ARCH_SIGNOFF  scope: demo  gate: arch rev-1"
+        in (text)
     )
-    assert "pending intent #1 open_pr" in text
-    assert "USER [matrix]: Add a truncate helper" in text
-    assert "PLAN (opus, 500 chars): " in text and "[340 more]" in text
-    assert 'CALL run_command {"command": "ls"}' in text
+    assert "pending intent #1 open_pr [demo-1]" in text
+    assert "[agent/operator] USER [matrix]: hello before use" in text
+    assert "[demo-1/operator] USER [matrix]: Add a truncate helper" in text
+    assert "[demo-1/planner] PLAN (opus, 500 chars): " in text and "[340 more]" in text
+    assert '[demo-1/executor] CALL run_command {"command": "ls"}' in text
     assert "result (FAILED): README.md" in text