fix(todo-continuation): remove activity-based stagnation bypass

src/hooks/todo-continuation-enforcer/session-state.ts

@@ -16,8 +16,6 @@ interface TrackedSessionState {
   lastAccessedAt: number
   lastCompletedCount?: number
   lastTodoSnapshot?: string
-  activitySignalCount: number
-  lastObservedActivitySignalCount?: number
 }
 
 export interface ContinuationProgressUpdate {
@@ -25,7 +23,7 @@ export interface ContinuationProgressUpdate {
   previousStagnationCount: number
   stagnationCount: number
   hasProgressed: boolean
-  progressSource: "none" | "todo" | "activity"
+  progressSource: "none" | "todo"
 }
 
 export interface SessionStateStore {
@@ -98,17 +96,7 @@ export function createSessionStateStore(): SessionStateStore {
     const trackedSession: TrackedSessionState = {
       state: rawState,
       lastAccessedAt: Date.now(),
-      activitySignalCount: 0,
     }
-    trackedSession.state = new Proxy(rawState, {
-      set(target, property, value, receiver) {
-        if (property === "abortDetectedAt" && value === undefined) {
-          trackedSession.activitySignalCount += 1
-        }
-
-        return Reflect.set(target, property, value, receiver)
-      },
-    })
     sessions.set(sessionID, trackedSession)
     return trackedSession
   }
@@ -137,7 +125,6 @@ export function createSessionStateStore(): SessionStateStore {
     const previousStagnationCount = state.stagnationCount
     const currentCompletedCount = todos?.filter((todo) => todo.status === "completed").length
     const currentTodoSnapshot = todos ? getTodoSnapshot(todos) : undefined
-    const currentActivitySignalCount = trackedSession.activitySignalCount
     const hasCompletedMoreTodos =
       currentCompletedCount !== undefined
       && trackedSession.lastCompletedCount !== undefined
@@ -146,9 +133,6 @@ export function createSessionStateStore(): SessionStateStore {
       currentTodoSnapshot !== undefined
       && trackedSession.lastTodoSnapshot !== undefined
       && currentTodoSnapshot !== trackedSession.lastTodoSnapshot
-    const hasObservedExternalActivity =
-      trackedSession.lastObservedActivitySignalCount !== undefined
-      && currentActivitySignalCount > trackedSession.lastObservedActivitySignalCount
     const hadSuccessfulInjectionAwaitingProgressCheck = state.awaitingPostInjectionProgressCheck === true
 
     state.lastIncompleteCount = incompleteCount
@@ -158,7 +142,6 @@ export function createSessionStateStore(): SessionStateStore {
     if (currentTodoSnapshot !== undefined) {
       trackedSession.lastTodoSnapshot = currentTodoSnapshot
     }
-    trackedSession.lastObservedActivitySignalCount = currentActivitySignalCount
 
     if (previousIncompleteCount === undefined) {
       state.stagnationCount = 0
@@ -173,9 +156,7 @@ export function createSessionStateStore(): SessionStateStore {
 
     const progressSource = incompleteCount < previousIncompleteCount || hasCompletedMoreTodos || hasTodoSnapshotChanged
       ? "todo"
-      : hasObservedExternalActivity
-        ? "activity"
-        : "none"
+      : "none"
 
     if (progressSource !== "none") {
       state.stagnationCount = 0
@@ -223,8 +204,6 @@ export function createSessionStateStore(): SessionStateStore {
     state.awaitingPostInjectionProgressCheck = false
     trackedSession.lastCompletedCount = undefined
     trackedSession.lastTodoSnapshot = undefined
-    trackedSession.activitySignalCount = 0
-    trackedSession.lastObservedActivitySignalCount = undefined
   }
 
   function cancelCountdown(sessionID: string): void {