nisse-core: group modules into packages by architecture section

A pure move; behaviour unchanged.

- models (L9, L7): llm, catalog, probe, render, render_anthropic, context
- log (L7, L6): canonical, views
- state (L8): store (was state), reconcile, worker, cancel, dump
- knowledge (L10, L6.4): vault, memory
- conversation (L5): transport, matrix
- execution (L13): ssh (was execution), testing
- authority (P3, P4, L4): actions
- gitea, oplog, envfile stay at the top until each gains a second module.

Every import, monkeypatch target, script and doc reference rewritten.

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/agent.py

@@ -26,7 +26,7 @@ from dataclasses import dataclass, replace
 from datetime import UTC, datetime
 from typing import Any
 
-from nisse_core.actions import (
+from nisse_core.authority.actions import (
     CONTAINED,
     DANGEROUS,
     REFUSED,
@@ -34,8 +34,12 @@ from nisse_core.actions import (
     Action,
     Verdict,
 )
-from nisse_core.cancel import Cancel
-from nisse_core.canonical import (
+from nisse_core.conversation.transport import InboundMessage, Transport
+from nisse_core.execution.ssh import HostKeyChanged, HostUnavailable
+from nisse_core.gitea import GiteaClient, GiteaError, Issue, PullRequest
+from nisse_core.knowledge.memory import Memory
+from nisse_core.knowledge.vault import Vault, VaultError
+from nisse_core.log.canonical import (
     ActionVerdict,
     DelegationCompleted,
     DelegationStarted,
@@ -46,15 +50,11 @@ from nisse_core.canonical import (
     ToolResult,
     UserMessage,
 )
-from nisse_core.execution import HostKeyChanged, HostUnavailable
-from nisse_core.gitea import GiteaClient, GiteaError, Issue, PullRequest
-from nisse_core.llm import LLMError, RoleMap
-from nisse_core.memory import Memory
+from nisse_core.models.llm import LLMError, RoleMap
 from nisse_core.oplog import OpLog
-from nisse_core.state import WorkItem
-from nisse_core.transport import InboundMessage, Transport
-from nisse_core.vault import Vault, VaultError
-from nisse_core.worker import Worker
+from nisse_core.state.cancel import Cancel
+from nisse_core.state.store import WorkItem
+from nisse_core.state.worker import Worker
 from nisse_dev.config import GENERAL
 from nisse_dev.delegation import DELEGATION_INTENT, Delegation
 from nisse_dev.expert import BudgetExhausted, ExpertDesk