Merge remote-tracking branch 'origin/master' into codex/rfc-subagent-background-tasks

# Conflicts:
#	docs/architecture.md
#	docs/module-graph.md
#	examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl
#	examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl
#	examples/acp-agent/tests/snapshots/text-turn/session.jsonl
#	packages/README.md
#	packages/core/tools/tests/gen-tool-catalog.spec.ts
#	scripts/doc-budgets.manifest.json
#	tsconfig.base.json
#	tsconfig.build.json
#	tsconfig.json

examples/coding-agent/cordis.yml

@@ -103,6 +103,18 @@
     provider: fork
     toolName: subagent_fork
 
+
+# Dynamic workflows: the worker-thread engine (ctx.workflows) over the spawn
+# subagent backend above, plus the model-facing `workflow` tool. The model
+# writes a JavaScript orchestration script (meta + body); the engine runs it
+# in its own worker thread and fans agent() calls out as spawn children.
+- id: workflow-workerthread
+  name: '@deepseek-ai/dsh-workflow-workerthread'
+  config:
+    provider: spawn
+
+- id: tool-workflow
+  name: '@deepseek-ai/dsh-tool-workflow'
 # The model-facing todo_write tool: whole-list task tracking written to the
 # session log (todo/write), rendered as a stdio checklist / ACP plan.
 - id: tool-todo