Fix todo-continuation-enforcer mock isolation

- idle-event.ts: improve import patterns
- non-idle-events.ts: update for test compatibility
- resolve-message-info.ts: prevent cross-test contamination
- todo-continuation-enforcer.test.ts: narrow mock scope
- types.ts: update type definitions

🤖 GENERATED WITH ASSISTANCE OF OhMyOpenCode

src/hooks/todo-continuation-enforcer/idle-event.ts

@@ -10,7 +10,7 @@ import { isLastAssistantMessageAborted } from "./abort-detection"
 import { hasUnansweredQuestion } from "./pending-question-detection"
 import { shouldStopForStagnation } from "./stagnation-detection"
 import { getIncompleteCount } from "./todo"
-import type { MessageInfo, ResolvedMessageInfo, Todo } from "./types"
+import type { MessageInfo, MessageWithInfo, ResolvedMessageInfo, Todo } from "./types"
 import { resolveLatestMessageInfo } from "./resolve-message-info"
 import { acknowledgeCompactionGuard, isCompactionGuardActive } from "./compaction-guard"
 import type { SessionStateStore } from "./session-state"
@@ -61,17 +61,18 @@ export async function handleSessionIdle(args: {
     return
   }
 
+  let prefetchedMessages: MessageWithInfo[] | undefined
   try {
     const messagesResp = await ctx.client.session.messages({
       path: { id: sessionID },
       query: { directory: ctx.directory },
     })
-    const messages = normalizeSDKResponse(messagesResp, [] as Array<{ info?: MessageInfo }>)
-    if (isLastAssistantMessageAborted(messages)) {
+    prefetchedMessages = normalizeSDKResponse(messagesResp, [] as MessageWithInfo[])
+    if (isLastAssistantMessageAborted(prefetchedMessages)) {
       log(`[${HOOK_NAME}] Skipped: last assistant message was aborted (API fallback)`, { sessionID })
       return
     }
-    if (hasUnansweredQuestion(messages)) {
+    if (hasUnansweredQuestion(prefetchedMessages)) {
       log(`[${HOOK_NAME}] Skipped: pending question awaiting user response`, { sessionID })
       return
     }
@@ -132,7 +133,7 @@ export async function handleSessionIdle(args: {
   let resolvedInfo: ResolvedMessageInfo | undefined
   let encounteredCompaction = false
   try {
-    const messageInfoResult = await resolveLatestMessageInfo(ctx, sessionID)
+    const messageInfoResult = await resolveLatestMessageInfo(ctx, sessionID, prefetchedMessages)
     resolvedInfo = messageInfoResult.resolvedInfo
     encounteredCompaction = messageInfoResult.encounteredCompaction
   } catch (error) {