build(vendor): rescope the vendored Cordis packages into @deepseek-ai

Machine-produced by `pnpm run rescope-vendor --apply` plus the regeneration it
prints: `pnpm install` for the lockfile, `pnpm run gen-third-party-notices`,
`verify-translation-pairing --write` for the touched bilingual pairs,
`gen-doc-graphs`, and one typert snapshot whose ids embed character offsets.
`pnpm run rescope-vendor --check` verifies the result.

Renames nine vendored packages (cordis, cosmokit, schemastery and the six
@cordisjs plugins) and every reference that resolves them: manifest names and
dependency keys, module specifiers including declare-module merges, cordis.yml
plugin names, tsconfig paths, every Markdown fence, and `docs/` prose.
Directory names, upstream versions, and dependency ranges are unchanged, so
vendor/README.md still reads as an upstream snapshot; its manifest table gains
an upstream-name column so THIRD_PARTY_NOTICES keeps MIT attribution pointed
at each fork's origin.

The tutorial tier follows the rename end to end: its yaml fences named plugins
the Loader can no longer resolve, its `ts ignore-check` fences disagreed with
the compiled fences beside them, and its prose quoted both. The contracts that
told readers to keep upstream names — the root convention and the vendoring
cookbook's tree comment and manifest invariant — now say to rescope instead.

Two rules read `@deepseek-ai/` as "another workspace plugin": the client bundle
purity gate now names the vendored libraries a browser bundle inlines, and the
files where a bare `cordis` is an agent-preset id keep that product data.

packages/subagent/subagent-claude-code/package.json

@@ -31,12 +31,12 @@
     "@deepseek-ai/dsh-subagent": "^0.0.1",
     "@deepseek-ai/dsh-subprocess": "^0.0.1",
     "@deepseek-ai/dsh-timeout": "^0.0.1",
-    "cordis": "^4.0.0-rc.7"
+    "@deepseek-ai/cordis": "^4.0.0-rc.7"
   },
   "dependencies": {
     "@anthropic-ai/sdk": "0.93.0",
     "@anthropic-ai/claude-agent-sdk": "0.3.220",
-    "schemastery": "^3.18.0"
+    "@deepseek-ai/schemastery": "^3.18.0"
   },
   "devDependencies": {
     "@deepseek-ai/dsh-agent": "workspace:^",
@@ -48,6 +48,6 @@
     "@deepseek-ai/dsh-subprocess": "workspace:^",
     "@deepseek-ai/dsh-subprocess-local": "workspace:^",
     "@deepseek-ai/dsh-timeout": "workspace:^",
-    "cordis": "^4.0.0-rc.7"
+    "@deepseek-ai/cordis": "^4.0.0-rc.7"
   }
 }

packages/subagent/subagent-claude-code/src/index.ts

@@ -6,8 +6,8 @@
  * @module @deepseek-ai/dsh-subagent-claude-code
  */
 
-import type { Context } from 'cordis'
-import z from 'schemastery'
+import type { Context } from '@deepseek-ai/cordis'
+import z from '@deepseek-ai/schemastery'
 import { MAX_TIMER_DELAY_MS } from '@deepseek-ai/dsh-timeout'
 import {
   assertPositiveFinite,

packages/subagent/subagent-claude-code/src/invariant.ts

@@ -5,7 +5,7 @@
  */
 
 /* jscpd:ignore-start */
-import type { Context } from 'cordis'
+import type { Context } from '@deepseek-ai/cordis'
 import type { InvariantInstaller } from '@deepseek-ai/dsh-invariants'
 
 const PACKAGE_NAME = '@deepseek-ai/dsh-subagent-claude-code'

packages/subagent/subagent-claude-code/tests/real-deepseek.e2e.ts

@@ -10,7 +10,7 @@ import { tmpdir } from 'node:os'
 import { dirname, join, resolve } from 'node:path'
 import { fileURLToPath } from 'node:url'
 import { promisify } from 'node:util'
-import { Context } from 'cordis'
+import { Context } from '@deepseek-ai/cordis'
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import type { Agent } from '@deepseek-ai/dsh-agent'
 import SubagentService from '@deepseek-ai/dsh-subagent'

packages/subagent/subagent-claude-code/tests/real-product.spec.ts

@@ -15,7 +15,7 @@ import type {
   SDKMessage,
   SDKSystemMessage,
 } from '@anthropic-ai/claude-agent-sdk'
-import { Context } from 'cordis'
+import { Context } from '@deepseek-ai/cordis'
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import type { Agent } from '@deepseek-ai/dsh-agent'
 import SubagentService from '@deepseek-ai/dsh-subagent'

packages/subagent/subagent-claude-code/tests/subagent-claude-code.spec.ts

@@ -6,8 +6,8 @@ import type {
   SDKResultMessage,
   SpawnOptions,
 } from '@anthropic-ai/claude-agent-sdk'
-import { Context } from 'cordis'
-import Loader from '@cordisjs/plugin-loader'
+import { Context } from '@deepseek-ai/cordis'
+import Loader from '@deepseek-ai/cordis-plugin-loader'
 import {
   afterEach,
   beforeEach,