Merge remote-tracking branch 'origin/master' into worktree/preset-plane-fallout-p1

The vendored Cordis rescope (`cordis` -> `@deepseek-ai/cordis`,
`@cordisjs/plugin-*` -> `@deepseek-ai/cordis-plugin-*`) collided with this
branch's two added edges. Resolved by taking master's package names and
keeping this branch's additions: `@deepseek-ai/dsh-agent` and
`@deepseek-ai/dsh-system-prompt` peers, the `scopeChainOf` import, and the
`agent/created` type-only edge.

`docs/event-producer-consumer.*` is generated; regenerated after the merge
rather than hand-resolved.

packages/session/session-projection/package.json

@@ -35,11 +35,11 @@
   "peerDependencies": {
     "@deepseek-ai/dsh-invariants": "^0.0.1",
     "@deepseek-ai/dsh-session": "^0.0.1",
-    "cordis": "^4.0.0-rc.7"
+    "@deepseek-ai/cordis": "^4.0.0-rc.7"
   },
   "devDependencies": {
     "@deepseek-ai/dsh-invariants": "workspace:^",
     "@deepseek-ai/dsh-session": "workspace:^",
-    "cordis": "^4.0.0-rc.7"
+    "@deepseek-ai/cordis": "^4.0.0-rc.7"
   }
 }

packages/session/session-projection/src/index.ts

@@ -17,11 +17,11 @@
  * @module @deepseek-ai/dsh-session-projection
  */
 
-import { Context, Service } from 'cordis'
+import { Context, Service } from '@deepseek-ai/cordis'
 import type { ZodType } from 'zod'
 import type { Session, SessionEvent } from '@deepseek-ai/dsh-session'
 
-declare module 'cordis' {
+declare module '@deepseek-ai/cordis' {
   interface Context {
     sessionProjections: SessionProjectionRegistry
   }

packages/session/session-projection/src/invariant.ts

@@ -4,7 +4,7 @@
  */
 
 /* 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-session-projection'

packages/session/session-projection/tests/registry.spec.ts

@@ -8,7 +8,7 @@
  */
 
 import { describe, expect, it } from 'vitest'
-import { Context } from 'cordis'
+import { Context } from '@deepseek-ai/cordis'
 import { z } from 'zod'
 import SessionStore from '@deepseek-ai/dsh-session'
 import type { Session, SessionEvent } from '@deepseek-ai/dsh-session'