Refine telemetry-driven HUD and fitness feedback

miniprogram/game/rules/classicSequentialRule.ts

@@ -225,19 +225,22 @@ function applyCompletion(definition: GameDefinition, state: GameSessionState, cu
   const nextTarget = currentIndex >= 0 && currentIndex < targets.length - 1
     ? targets[currentIndex + 1]
     : null
+  const completedFinish = currentTarget.kind === 'finish'
+  const finished = completedFinish || (!nextTarget && definition.autoFinishOnLastControl)
   const nextState: GameSessionState = {
     ...state,
+    startedAt: currentTarget.kind === 'start' && state.startedAt === null ? at : state.startedAt,
     completedControlIds,
     currentTargetControlId: nextTarget ? nextTarget.id : null,
     inRangeControlId: null,
     score: getScoringControls(definition).filter((control) => completedControlIds.includes(control.id)).length,
-    status: nextTarget || !definition.autoFinishOnLastControl ? state.status : 'finished',
-    endedAt: nextTarget || !definition.autoFinishOnLastControl ? state.endedAt : at,
+    status: finished ? 'finished' : state.status,
+    endedAt: finished ? at : state.endedAt,
     guidanceState: nextTarget ? 'searching' : 'searching',
   }
   const effects: GameEffect[] = [buildCompletedEffect(currentTarget)]
 
-  if (!nextTarget && definition.autoFinishOnLastControl) {
+  if (finished) {
     effects.push({ type: 'session_finished' })
   }
 
@@ -275,7 +278,7 @@ export class ClassicSequentialRule implements RulePlugin {
       const nextState: GameSessionState = {
         ...state,
         status: 'running',
-        startedAt: event.at,
+        startedAt: null,
         endedAt: null,
         inRangeControlId: null,
         guidanceState: 'searching',