M7.1: extract nisse-core

What isn't the dev agent's moves to nisse-core, unchanged in behaviour,
with its tests: canonical, render, render_anthropic, llm, catalog, probe,
context, views, state, reconcile, worker, cancel, dump, transport, matrix,
execution, testing, vault, memory, oplog, envfile and gitea (whole).

- nisse_core.state.StateStore holds the tables every agent has; an
  agent's subclass adds its tables (version, migrations), roles and
  views. nisse_dev.state.StateStore adds the build VM blocks (v5).
- views.project takes what each role is shown, rather than a fixed table.
- Vault takes the agent's name (agent=), for provenance.
- A test that nisse_core never imports an agent.
- The loop, config, git, delegation, expert, tools and evals stay in
  nisse-dev until nisse-ops has a loop to share.

Docs: the Development Plan marks M7.1 done and notes that Phase 6 waits on
the agent host and Terraform; Architecture Part L names the package.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J5Utyfzw7gF7UhjRDEtjTk

nisse-core/tests/test_dump.py

@@ -0,0 +1,80 @@
+import io
+from pathlib import Path
+
+from nisse_core.canonical import Fact, PlanSubmitted, ToolCall, ToolResult, UserMessage
+from nisse_core.dump import main, render
+from nisse_core.oplog import OpLog
+from nisse_core.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.open_work_item(
+        "demo-1",
+        title="Add a truncate helper",
+        scope="demo",
+        position="WAITING",
+        data={"loop": {"wait": "go-ahead", "rev": 1}},
+        cause="test",
+    )
+    store.set_active("demo-1", cause="test")
+    log = store.transcript("demo-1", "operator")
+    log.append(UserMessage(text="Add a truncate helper", source="matrix"))
+    driver = log.as_actor("driver")
+    driver.append(PlanSubmitted(plan="x" * 500, model="opus"))
+    driver.append(
+        ToolCall(call_id="c1", tool="run_command", arguments={"command": "ls"})
+    )
+    driver.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_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 (
+        "demo-1  open  position: WAITING  scope: demo  rev-1  waits for: go-ahead"
+        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/driver] PLAN (opus, 500 chars): " in text and "[340 more]" in text
+    assert '[demo-1/driver] CALL run_command {"command": "ls"}' in text
+    assert "result (FAILED): README.md" in text
+
+
+def test_full_shows_long_texts_whole(tmp_path: Path) -> None:
+    db = tmp_path / "state.db"
+    store_with_a_run(db)
+    assert "x" * 500 in render(db, full=True)
+
+
+def test_facts_are_shown_as_the_orchestrators(tmp_path: Path) -> None:
+    db = tmp_path / "state.db"
+    store_with_a_run(db)
+    store = StateStore(db, oplog=OpLog("nisse-dev", io.StringIO()))
+    store.transcript("demo-1", "orchestrator").append(Fact(text="PR #3 opened"))
+    store.close()
+    assert "[demo-1/orchestrator] FACT: PR #3 opened" in render(db)
+
+
+def test_the_dump_never_writes_to_the_store(tmp_path: Path) -> None:
+    db = tmp_path / "state.db"
+    store_with_a_run(db)
+    before = db.read_bytes()
+    render(db)
+    assert db.read_bytes() == before
+
+
+def test_a_missing_store_is_reported(tmp_path: Path, capsys) -> None:
+    assert main([str(tmp_path / "nope.db")]) == 1
+    assert "no state store" in capsys.readouterr().err