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.

examples/acp-agent/tests/fixtures/child-question-tripwire.ts

@@ -1,4 +1,4 @@
-import type { Context } from 'cordis'
+import type { Context } from '@deepseek-ai/cordis'
 import '@deepseek-ai/dsh-user-interaction'
 
 /** Snapshot-only provider whose invocation means the child guard failed. */

examples/acp-agent/tests/fixtures/subagent-durability-failure.ts

@@ -1,4 +1,4 @@
-import type { Context } from 'cordis'
+import type { Context } from '@deepseek-ai/cordis'
 import { SessionId } from '@deepseek-ai/dsh-session'
 
 export const name = 'subagent-durability-failure'

examples/acp-agent/tests/fixtures/subagent-settlement-marker.ts

@@ -1,6 +1,6 @@
 import { writeFileSync } from 'node:fs'
 import { join } from 'node:path'
-import type { Context } from 'cordis'
+import type { Context } from '@deepseek-ai/cordis'
 import type {} from '@deepseek-ai/dsh-subagent'
 
 export const name = 'subagent-settlement-marker'

examples/acp-agent/tests/fixtures/subagent/subagent-acp/mock-delegating-llm.ts

@@ -1,4 +1,4 @@
-import type { Context } from 'cordis'
+import type { Context } from '@deepseek-ai/cordis'
 import type { GenerateOptions, StreamChunk } from '@deepseek-ai/dsh-llm'
 import { CallId, LlmAdapter } from '@deepseek-ai/dsh-llm'
 

examples/acp-agent/tests/fixtures/subagent/subagent-codex/fixture.ts

@@ -1,6 +1,6 @@
 /** Parent adapter that fails if the composition-only Loader test starts a turn. */
 
-import type { Context } from 'cordis'
+import type { Context } from '@deepseek-ai/cordis'
 import type { GenerateOptions, StreamChunk } from '@deepseek-ai/dsh-llm'
 import { LlmAdapter } from '@deepseek-ai/dsh-llm'
 

examples/acp-agent/tests/fixtures/workspace-context-compaction.ts

@@ -1,4 +1,4 @@
-import type { Context } from 'cordis'
+import type { Context } from '@deepseek-ai/cordis'
 import type {} from '@deepseek-ai/dsh-agent'
 import { CompactionId, compactCheckpointSource } from '@deepseek-ai/dsh-compact'
 import { createUserMessage } from '@deepseek-ai/dsh-llm'

examples/acp-agent/tests/fs-diff-bound.cordis.snapshot.yml

@@ -3,7 +3,7 @@
 # entries behind a nested include; the acp-agent restatement keeps the recorded
 # deepseek-v4-flash model and raw JSONL persistence for the harness's harvest.
 - id: base
-  name: '@cordisjs/plugin-include'
+  name: '@deepseek-ai/cordis-plugin-include'
   config:
     path: ../cordis.yml
     patches:

examples/acp-agent/tests/fs-diff-bound.cordis.yml

@@ -5,7 +5,7 @@
 # verbatim, and the acp-agent restatement re-pins `deepseek-v4-flash` to match
 # the recorded corpus and its pinned request headers.
 - id: base
-  name: '@cordisjs/plugin-include'
+  name: '@deepseek-ai/cordis-plugin-include'
   config:
     path: ../cordis.yml
     patches:

examples/acp-agent/tests/lsp.cordis.snapshot.yml

@@ -1,6 +1,6 @@
 # Keyless replay keeps the LSP composition intact and replaces only the model adapter.
 - id: base
-  name: '@cordisjs/plugin-include'
+  name: '@deepseek-ai/cordis-plugin-include'
   config:
     path: ../cordis.yml
     patches:

examples/acp-agent/tests/lsp.cordis.yml

@@ -1,7 +1,7 @@
 # Exercise the model-facing LSP tool through the shipped ACP app and Loader entry path.
 # The scenario workspace supplies the deterministic stdio server used by this test composition.
 - id: base
-  name: '@cordisjs/plugin-include'
+  name: '@deepseek-ai/cordis-plugin-include'
   config:
     path: ../cordis.yml
     patches: