fix status

src/lib/engine/engine.ts

@@ -26,9 +26,10 @@ import type { EngineStatus, EngineState, RebalanceResult } from './types'
 const GAS_RESERVE_MON = 0.5
 const ERROR_COOLDOWN_MS = 30_000 // 30s cooldown after error
 
-export class RebalancerEngine {
-  private static instance: RebalancerEngine | null = null
+// Use globalThis to survive HMR in dev mode
+const GLOBAL_KEY = '__lfj_rebalancer_engine__' as const
 
+export class RebalancerEngine {
   private status: EngineStatus = 'idle'
   private cooldownUntil = 0
   private errors: string[] = []
@@ -36,13 +37,20 @@ export class RebalancerEngine {
   private running = false
   private stopRequested = false
 
-  private constructor() {}
+  private constructor() {
+    // Restore status from DB on creation
+    const saved = getEngineState('status')
+    if (saved === 'running' || saved === 'paused') {
+      this.status = saved as EngineStatus
+    }
+  }
 
   static getInstance(): RebalancerEngine {
-    if (!RebalancerEngine.instance) {
-      RebalancerEngine.instance = new RebalancerEngine()
+    const g = globalThis as unknown as Record<string, RebalancerEngine>
+    if (!g[GLOBAL_KEY]) {
+      g[GLOBAL_KEY] = new RebalancerEngine()
     }
-    return RebalancerEngine.instance
+    return g[GLOBAL_KEY]
   }
 
   start(): void {
@@ -126,7 +134,7 @@ export class RebalancerEngine {
     }
 
     return {
-      status: this.status,
+      status: this.running ? 'running' : this.status,
       currentActiveId,
       currentPrice,
       positionMinBin: position?.minBin ?? null,