fix(session-reference): bind snapshots to prompts

packages/context/session-reference/src/index.ts

@@ -195,6 +195,7 @@ export class SessionReferenceService extends Service {
     const context: HookContext = {
       source: { kind: 'plugin', plugin: 'session-reference' },
       content: [{ type: 'text', text: prompt }],
+      placement: 'prompt-prefix',
       meta,
     }
     return { content: acceptedContent, contexts: [context] }

packages/context/session-reference/src/projection.ts

@@ -1,6 +1,7 @@
 /** Current-surface projection and byte-bounded rendering. */
 
 import { isCompactCheckpointSource } from '@deepseek-ai/dsh-compact'
+import { displayPromptContent } from '@deepseek-ai/dsh-session'
 import type { SessionSurfaceSnapshot } from '@deepseek-ai/dsh-session-query'
 import { assertNever } from '@deepseek-ai/dsh-llm'
 import { TextRetainer } from '@deepseek-ai/dsh-retention'
@@ -40,13 +41,13 @@ function projectSessionConversation(snapshot: SessionSurfaceSnapshot): Projected
       case 'user/message': {
         const checkpoint = isCompactCheckpointSource(event.data.source)
         if (!checkpoint && event.data.source.kind !== 'user') break
-        const text = textContent(event.data.content)
+        const text = textContent(displayPromptContent(event.data))
         if (text !== '') conversation.push({ role: 'user', text, checkpoint, originalText: text, omittedBytes: 0 })
         break
       }
       case 'steering/message': {
         if (event.data.source.kind !== 'user') break
-        const text = textContent(event.data.content)
+        const text = textContent(displayPromptContent(event.data))
         if (text !== '') conversation.push({ role: 'user', text, checkpoint: false, originalText: text, omittedBytes: 0 })
         break
       }