refactor: relocate demo app bundles to packages/examples/*-demo

Move the agent-spine bundle and the stdio/ACP/JSON-RPC app packages out of
core/ and ui/ into a new packages/examples/ group, renamed with a -demo
suffix so the npm name marks them as non-product surface:

  core/agent-core   -> examples/agent-spine-demo  (dsh-agent-spine-demo)
  ui/stdio-agent    -> examples/stdio-demo        (dsh-stdio-demo)
  ui/acp-agent      -> examples/acp-demo          (dsh-acp-demo)
  ui/jsonrpc-agent  -> examples/jsonrpc-demo      (dsh-jsonrpc-demo)

Update every code/config/test reference and reference-only doc mentions, and
regenerate module-graph, config-catalog, and doc-graphs. The jsonrpc bin
(dsh-jsonrpc-agent) and single-file exe (dsh-jsonrpc-agent-pkg) keep their
names; the SDK runtime-startup surface is reconciled separately.

examples/coding-agent/README.md

@@ -48,14 +48,14 @@ and watch the transcript: one `run_code` call, a program looping over tools, and
 
 ## What each leaf entry demonstrates
 
-This example is a thin leaf `cordis.yml`: it picks the swappable backends, loads one app package, and adds product tools that are intentionally outside the shared spine. The spine (sessions, system-prompt, tools, agents, invariants, `agent-loop`) and the front-door cluster (console logger, JSONL persistence, readline UI, the pre-created `main` agent) live inside the [`@deepseek-ai/dsh-stdio-agent`](../../packages/ui/stdio-agent) app and the [`@deepseek-ai/dsh-agent-core`](../../packages/core/agent-core) bundle it loads; the leaf wires the backends and model-facing optional tools:
+This example is a thin leaf `cordis.yml`: it picks the swappable backends, loads one app package, and adds product tools that are intentionally outside the shared spine. The spine (sessions, system-prompt, tools, agents, invariants, `agent-loop`) and the front-door cluster (console logger, JSONL persistence, readline UI, the pre-created `main` agent) live inside the [`@deepseek-ai/dsh-stdio-demo`](../../packages/examples/stdio-demo) app and the [`@deepseek-ai/dsh-agent-spine-demo`](../../packages/examples/agent-spine-demo) bundle it loads; the leaf wires the backends and model-facing optional tools:
 
 | Entry | Demonstrates |
 |---|---|
 | `hmr` (`@cordisjs/plugin-hmr`) | the dev/demo edit-reload loop — a **leaf** entry (not baked into the app) because it is Loader-only and needs `node --expose-internals`, which `demo:repl` passes |
 | `llm-deepseek` | real `LlmAdapter` via config (`!!js process.env.…` secrets); swap one line to `@deepseek-ai/dsh-llm-pi-ai` for the library-backed twin |
 | `bash` (`dsh-bash-local`) | the executor implementation — the swappable half of the bash seam. The model-facing `bash`/`bash_output`/`bash_kill` tool schemas (`tool-bash`) come from `agent-core`, so only the executor is a leaf choice |
-| `stdio-agent` (`@deepseek-ai/dsh-stdio-agent`) | the app bundle: the agent-core spine + console logger + JSONL persistence + readline UI + a pre-created `main` agent. Its config carries the model, system prompt, `persistenceRoot` (`./.sessions`), and `resumeSessionId` — so persistence and the agent are configured here, not wired as separate leaf plugins |
+| `stdio-agent` (`@deepseek-ai/dsh-stdio-demo`) | the app bundle: the agent-core spine + console logger + JSONL persistence + readline UI + a pre-created `main` agent. Its config carries the model, system prompt, `persistenceRoot` (`./.sessions`), and `resumeSessionId` — so persistence and the agent are configured here, not wired as separate leaf plugins |
 | `subagent`, `subagent-spawn`, `subagent-fork` | the subagent provider registry plus the two in-process backends: a fresh child and a child seeded with the parent's completed-turn prefix |
 | `tool-subagent`, `tool-subagent-fork` | two model-facing `dsh-tool-subagent` loads, each bound to a different provider and exposed under a distinct tool name (`subagent`, `subagent_fork`) |
 | `tool-todo` | the model-facing `todo_write` tool; writes the whole task list to the session log and renders as a checklist in stdio |

examples/coding-agent/code-mode.cordis.yml

@@ -9,7 +9,7 @@
     path: ./cordis.yml
     patches:
       - id: stdio-agent
-        name: '@deepseek-ai/dsh-stdio-agent'
+        name: '@deepseek-ai/dsh-stdio-demo'
         config:
           model: deepseek-v4-flash
           resumeSessionId: !!js process.env.RESUME_SESSION_ID

examples/coding-agent/composition.md

@@ -14,9 +14,9 @@ flowchart LR
   cfg --> plugin_coding_llm_deepseek
   plugin_coding_bash["bash<br/>@deepseek-ai/dsh-bash-local"]
   cfg --> plugin_coding_bash
-  plugin_coding_stdio_agent["stdio-agent<br/>@deepseek-ai/dsh-stdio-agent"]
+  plugin_coding_stdio_agent["stdio-agent<br/>@deepseek-ai/dsh-stdio-demo"]
   cfg --> plugin_coding_stdio_agent
-  plugin_coding_stdio_agent --> bundle_agent_core["@deepseek-ai/dsh-agent-core"]
+  plugin_coding_stdio_agent --> bundle_agent_core["@deepseek-ai/dsh-agent-spine-demo"]
   plugin_coding_stdio_agent --> bundle_jsonl["@deepseek-ai/dsh-session-persistence-jsonl"]
   plugin_coding_stdio_agent --> frontdoor_stdio["readline UI<br/>console logger<br/>pre-created main agent"]
   bundle_agent_core --> spine_llm["ctx.llm"]
@@ -54,7 +54,7 @@ flowchart LR
 | `hmr` | `@cordisjs/plugin-hmr` |
 | `llm-deepseek` | `@deepseek-ai/dsh-llm-deepseek` |
 | `bash` | `@deepseek-ai/dsh-bash-local` |
-| `stdio-agent` | `@deepseek-ai/dsh-stdio-agent` |
+| `stdio-agent` | `@deepseek-ai/dsh-stdio-demo` |
 | `compact-basic` | `@deepseek-ai/dsh-compact-basic` |
 | `subagent` | `@deepseek-ai/dsh-subagent` |
 | `subagent-spawn` | `@deepseek-ai/dsh-subagent-spawn` |

examples/coding-agent/cordis.yml

@@ -1,4 +1,4 @@
-# REPL agent with swappable DeepSeek and local-bash backends. `dsh-stdio-agent`
+# REPL agent with swappable DeepSeek and local-bash backends. `dsh-stdio-demo`
 # supplies the agent-core spine, logging, JSONL persistence, readline UI, and `main` agent.
 # HMR remains a leaf because it requires Loader internals; `demo:repl` passes
 # `--expose-internals`. The app bin loads the gitignored root `.env`; this file
@@ -29,7 +29,7 @@
 
 # The app bundle pre-creates the REPL's `main` agent.
 - id: stdio-agent
-  name: '@deepseek-ai/dsh-stdio-agent'
+  name: '@deepseek-ai/dsh-stdio-demo'
   config:
     model: deepseek-v4-flash
     # Set RESUME_SESSION_ID to continue a prior persisted session (the ids live

examples/coding-agent/tests/code-mode-keyless-smoke.e2e.ts

@@ -8,7 +8,7 @@ import { LOADER_SMOKE_TEST_TIMEOUT_MS, runLoaderSmoke } from '@deepseek-ai/dsh-l
  * a prompt and assert the banner. No model or `run_code` turn runs.
  */
 
-const binScript = fileURLToPath(new URL('../../../packages/ui/stdio-agent/src/bin.ts', import.meta.url))
+const binScript = fileURLToPath(new URL('../../../packages/examples/stdio-demo/src/bin.ts', import.meta.url))
 const configPath = fileURLToPath(new URL('../code-mode.cordis.yml', import.meta.url))
 const tsconfigPath = fileURLToPath(new URL('../../../tsconfig.json', import.meta.url))
 

examples/coding-agent/tests/keyless-smoke.e2e.ts

@@ -9,7 +9,7 @@ import { LOADER_SMOKE_TEST_TIMEOUT_MS, runLoaderSmoke } from '@deepseek-ai/dsh-l
  * immediate EOF guarantees there is no model call.
  */
 
-const binScript = fileURLToPath(new URL('../../../packages/ui/stdio-agent/src/bin.ts', import.meta.url))
+const binScript = fileURLToPath(new URL('../../../packages/examples/stdio-demo/src/bin.ts', import.meta.url))
 const configPath = fileURLToPath(new URL('../cordis.yml', import.meta.url))
 const tsconfigPath = fileURLToPath(new URL('../../../tsconfig.json', import.meta.url))