fix(hal): implement onLeaveConnected for ID003 validator initialization

The ID003 FSM was stuck in the PowerUp state because leaving the
Connected state never emitted 'ready'. This is the trigger for the
denomination/reset initialization chain.

Added onLeaveState() method that emits 'ready' when leaving Connected,
matching the original lamassu-machine behavior (onleaveConnected).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/hal/src/validators/id003/id003-fsm.ts

@@ -58,6 +58,7 @@ export class Id003Fsm extends EventEmitter {
     const from = this._state
     this.clearStateTimeout()
     console.log('FSM: %s [ %s -> %s ]', event ?? 'transition', from, to)
+    this.onLeaveState(from)
     this._state = to
     this.onEnterState(to, from, data)
   }
@@ -75,13 +76,18 @@ export class Id003Fsm extends EventEmitter {
     }, TRANSIENT_TIMEOUT)
   }
 
+  private onLeaveState(state: string): void {
+    if (state === 'Connected') {
+      this.emit('ready')
+    }
+  }
+
   private onEnterState(state: string, from: string, data?: unknown): void {
     switch (state) {
       case 'PowerUp':
         this.emit('powerUp')
         break
       case 'Connected':
-        // Will emit 'ready' on leave
         break
       case 'Denominations':
         this.emit('denominations')