Merge origin/master into worktree/web-multimodal-image-input

# Conflicts:
#	docs/architecture.i18n.yaml
#	docs/architecture.md
#	docs/architecture.zh.md
#	docs/cordis-catalog/events.md
#	docs/cordis-catalog/services.md
#	docs/core-data-structures/llm-streaming.i18n.yaml
#	docs/event-producer-consumer.md
#	docs/module-graph.md
#	examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/session.jsonl
#	packages/client/connection/src/client/fixture.ts
#	packages/client/connection/tests/node-half.spec.ts
#	packages/client/ui-conversation/README.i18n.yaml
#	packages/client/ui-conversation/README.md
#	packages/client/ui-conversation/README.zh.md
#	packages/compact/compact-basic/README.i18n.yaml
#	packages/llm/llm/README.i18n.yaml
#	scripts/test-invariants.ts

packages/compact/compact-basic/tests/compact-basic.spec.ts

@@ -1237,7 +1237,8 @@ describe('default one-shot summarizer', () => {
     expect(messages[0]).toEqual(prefix)
     const last = messages.at(-1)?.content[0]
     const lastText = last?.type === 'text' ? last.text : ''
-    expect(lastText).toContain('Condense the conversation ABOVE')
+    expect(lastText).toContain('Write concise English engineering prose.')
+    expect(lastText).toContain('numeric values, function signatures, and syntax fragments.')
     expect(lastText).toContain('## Primary Request and Intent')
   })