fix(client): review fixes for invocation rendering and turn boundaries

The user-turn predicate (opensUserTurn) unifies the three parallel
consumers a new node kind silently missed — produced-files turn reset,
retry liveness, own-words force-scroll — so a skill invocation behaves as
the turn opener it is. The menu marker resolves through ctx.locale.bind
instead of a hand-rolled snapshot lookup; the dead legacy <skill> render
arm goes with the removal cut; command-over-skill name precedence is now
documented at the matchEnter seam; and the emptied replacement catalog
keeps the no-reload sentence, with the never-published residual recorded
in the Agent Note.

packages/client/ui-deliverables/src/client/turn-deliverables.ts

@@ -3,6 +3,7 @@
  * nodes. Client-only and model-free: the vocabulary is the mutation tools'
  * own follow-along `locations`, never the closing prose.
  */
+import { opensUserTurn } from '@deepseek-ai/dsh-client-runtime/client'
 import type { ConversationNode, ToolResultNode } from '@deepseek-ai/dsh-client-runtime/client'
 import type { TurnTailOwnerProps } from '@deepseek-ai/dsh-client-ui-conversation/client'
 
@@ -62,7 +63,7 @@ export function producedForClosing(nodes: readonly ConversationNode[], seq: numb
       }
       continue
     }
-    if (node.kind === 'user') {
+    if (opensUserTurn(node)) {
       turn = undefined
       pending = []
       seen = new Set()

packages/client/ui-deliverables/tests/produced-files.spec.tsx

@@ -73,6 +73,27 @@ describe('producedForClosing derivation', () => {
     expect(producedForClosing(nodes, 999)).toEqual([])
   })
 
+  it('treats a user-explicit skill invocation as a turn boundary', () => {
+    // The injection opens a user turn exactly like a typed prompt: files
+    // written before it must not spill into the turn its answer closes.
+    const skillInvocation = {
+      kind: 'skill-invocation' as const, seq: 4, time: 4_000,
+      name: 'hidden-demo',
+      content: [{ type: 'text', text: '<skill_content name="hidden-demo">x</skill_content>' }] as never,
+      source: null,
+    }
+    const nodes: ConversationNode[] = [
+      user(1, 'write things'),
+      assistant(2, 'wrote', 1),
+      wrote(3, 'a', 'stale.txt'),
+      skillInvocation,
+      wrote(5, 'b', 'fresh.txt'),
+      assistant(6, 'followed the skill', 2),
+    ]
+    expect(producedForClosing(nodes, 6)).toEqual(['fresh.txt'])
+    expect(producedForClosing(nodes, 6)).not.toContain('stale.txt')
+  })
+
   it('counts a generic edit and never spills across the turn boundary', () => {
     const inserted = (seq: number, callId: string, path: string): ToolResultNode => ({
       ...toolResult(seq, callId, 'str_replace_editor'),