Merge remote-tracking branch 'origin/codex/enforce-tool-cancellation' into worktree/explicit-turn-signal

# Conflicts:
#	docs/architecture.md
#	docs/cordis-catalog/events.md
#	docs/event-producer-consumer.md
#	docs/persistence-catalog.md
#	examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/session.jsonl
#	examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/stdout.expected.jsonl
#	packages/cordis/tool-cordis/src/api-catalog.ts
#	packages/core/agent-loop/README.md
#	packages/core/agent-loop/src/loop.ts
#	packages/core/agent/README.md
#	packages/examples/cli-demo/src/cli.ts
#	packages/ui/tui/tests/tui.spec.ts

packages/core/agent-loop/tests/cancel.spec.ts

@@ -11,7 +11,7 @@ import { Context } from 'cordis'
 import LlmService, { type Message } from '@deepseek-ai/dsh-llm'
 import SessionStore, { SessionId, TurnEndReason } from '@deepseek-ai/dsh-session'
 import SystemPrompt from '@deepseek-ai/dsh-system-prompt'
-import ToolRegistry, { defineTool } from '@deepseek-ai/dsh-tools'
+import ToolRegistry, { defineTool, TOOL_ABORTED_BEFORE_DISPATCH } from '@deepseek-ai/dsh-tools'
 import AgentRegistry, { type Agent } from '@deepseek-ai/dsh-agent'
 import AgentLoop from '@deepseek-ai/dsh-agent-loop'
 import { MockAdapter, textResponse, toolCallResponse } from './mock-adapter.ts'
@@ -369,7 +369,7 @@ describe('Agent.cancel()', () => {
     expect(result?.type === 'tool/result' ? result.data : undefined).toMatchObject({
       callId: 'c1',
       isError: true,
-      error: { name: 'AbortError', code: 'ABORTED' },
+      error: { name: 'AbortError', code: TOOL_ABORTED_BEFORE_DISPATCH },
     })
 
     send(agent, 'continue safely')