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/storage/storage-domain/src/domain.ts

@@ -9,7 +9,7 @@
  * @module @deepseek-ai/dsh-storage-domain/src/domain
  */
 
-import type { Context } from 'cordis'
+import type { Context } from '@deepseek-ai/cordis'
 import type { KvUnit } from '@deepseek-ai/dsh-storage'
 import { DomainError } from './error.ts'
 import type { DomainSpec, DomainGlobalSpec, TableKeyOf, TableValueOf } from './spec.ts'

packages/storage/storage-domain/src/events.ts

@@ -33,7 +33,7 @@ export interface DomainChangedDeleted extends DomainChangedBase {
 /** One durable domain change; a closed union — switch on `operation`. */
 export type DomainChanged = DomainChangedPut | DomainChangedDeleted
 
-declare module 'cordis' {
+declare module '@deepseek-ai/cordis' {
   interface Events {
     /**
      * A domain record or the global singleton changed, emitted once per write

packages/storage/storage-domain/src/index.ts

@@ -7,8 +7,8 @@
  * @module @deepseek-ai/dsh-storage-domain
  */
 
-import type { Context } from 'cordis'
-import z from 'schemastery'
+import type { Context } from '@deepseek-ai/cordis'
+import z from '@deepseek-ai/schemastery'
 import { storageBackendServiceKey } from '@deepseek-ai/dsh-storage'
 import { DomainError } from './error.ts'
 import { descriptorOf } from './spec.ts'
@@ -32,7 +32,7 @@ declare module '@deepseek-ai/dsh-storage' {
   }
 }
 
-declare module 'cordis' {
+declare module '@deepseek-ai/cordis' {
   interface Context {
     storageDomain: DomainFacility
   }

packages/storage/storage-domain/src/invariant.ts

@@ -9,7 +9,7 @@
  * @module @deepseek-ai/dsh-storage-domain/invariant
  */
 
-import type { Context } from 'cordis'
+import type { Context } from '@deepseek-ai/cordis'
 import type { InvariantFailure, InvariantInstaller } from '@deepseek-ai/dsh-invariants'
 import type { DomainChanged } from './events.ts'