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/tests/test_loop_properties.py

@@ -24,8 +24,12 @@ from test_loop_milestones import DON, Forge, call, make_world
 from test_loop_milestones import world as world  # noqa: PLC0414 -- the fixture
 from test_loop_projects import Router
 
-from nisse_core.cancel import Cancel
-from nisse_core.canonical import (
+from nisse_core.conversation.transport import InboundMessage, InMemoryTransport
+from nisse_core.execution.ssh import HostUnavailable, SSHHost
+from nisse_core.gitea import Comment, Issue
+from nisse_core.knowledge.memory import Memory
+from nisse_core.knowledge.vault import Vault, split_frontmatter
+from nisse_core.log.canonical import (
     ActionVerdict,
     AssistantText,
     Fact,
@@ -34,14 +38,10 @@ from nisse_core.canonical import (
     ToolResult,
     UserMessage,
 )
-from nisse_core.execution import HostUnavailable, SSHHost
-from nisse_core.gitea import Comment, Issue
-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.transport import InboundMessage, InMemoryTransport
-from nisse_core.vault import Vault, split_frontmatter
-from nisse_core.worker import InlineWorker
+from nisse_core.state.cancel import Cancel
+from nisse_core.state.worker import InlineWorker
 from nisse_dev.delegation import DELEGATION_INTENT, Caps
 from nisse_dev.loop.agent import LoopAgent, Project
 from nisse_dev.loop.classifier import ActionClassifier