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-dev/src/nisse_dev/loop/build.py

@@ -7,29 +7,29 @@ import threading
 from collections.abc import Callable
 from dataclasses import dataclass
 
-from nisse_dev.cancel import Cancel
-from nisse_dev.catalog import ModelCatalog, select_client
+from nisse_core.cancel import Cancel
+from nisse_core.catalog import ModelCatalog, select_client
+from nisse_core.context import BudgetedClient
+from nisse_core.execution import SSHHost
+from nisse_core.gitea import GiteaClient
+from nisse_core.llm import AnthropicPassthroughClient, LiteLLMClient
+from nisse_core.matrix import MatrixTransport
+from nisse_core.memory import Memory
+from nisse_core.oplog import OpLog
+from nisse_core.vault import Vault
+from nisse_core.worker import SerialWorker
 from nisse_dev.config import AgentConfig, ConfigError
 from nisse_dev.config import Project as ProjectEntry
-from nisse_dev.context import BudgetedClient
 from nisse_dev.delegation import Caps
-from nisse_dev.execution import SSHHost
 from nisse_dev.git import GitRepo, HTTPSToken, PushCredential, SSHKey
-from nisse_dev.gitea import GiteaClient
-from nisse_dev.llm import AnthropicPassthroughClient, LiteLLMClient
 from nisse_dev.loop.agent import LoopAgent, Project
 from nisse_dev.loop.classifier import ActionClassifier
 from nisse_dev.loop.driver import Driver
 from nisse_dev.loop.help import Helpers
 from nisse_dev.loop.milestones import Milestones
 from nisse_dev.loop.reader import GoAheadReader
-from nisse_dev.matrix import MatrixTransport
-from nisse_dev.memory import Memory
-from nisse_dev.oplog import OpLog
 from nisse_dev.state import StateStore
 from nisse_dev.tools import Workspace
-from nisse_dev.vault import Vault
-from nisse_dev.worker import SerialWorker
 
 # How long shutdown waits for running work before leaving the store to the
 # durability layer (L8). A milestone can run far longer than a service
@@ -301,7 +301,12 @@ def build_loop_agent(
     )
     transport = MatrixTransport(config.matrix)
     vault = (
-        Vault(config.vault.root, config.vault.folders, ignore=config.vault.ignore)
+        Vault(
+            config.vault.root,
+            config.vault.folders,
+            agent="nisse-dev",
+            ignore=config.vault.ignore,
+        )
         if config.vault
         else None
     )