fix(session-title): harden async provider lifecycle

packages/session-title/session-title-first-message-llm/src/index.ts

@@ -9,7 +9,7 @@ import {
 import type { SessionTitleLlmConfig } from '@deepseek-ai/dsh-session-title-llm'
 
 export const name = 'session-title-first-message-llm'
-export const inject = ['sessionTitle', 'llm']
+export const inject = ['sessionTitle', 'llm', 'sessions']
 
 /** Required LLM policy; this plugin adds no defaults. */
 export type Config = SessionTitleLlmConfig
@@ -28,7 +28,7 @@ export const Config: z<Config> = z.object({
 
 /**
  * Register the first-message model provider.
- * @param ctx - context exposing session-title and LLM services.
+ * @param ctx - context exposing session-title, LLM, and session services.
  * @param config - required route, target, byte, token, and timeout policy.
  */
 export function apply(ctx: Context, config: Config): void {