PLG-CAL-003 fix deferred slot replanning

plugin/calendar/scheduler.js

@@ -88,6 +88,12 @@ class CalendarScheduler {
                 await this.handleNonIdleAgent(response.slots, response.agent_status);
                 return;
             }
+            // Agent is idle again - previously deferred slots should become eligible
+            // for selection in the next planning pass.
+            if (this.state.deferredSlotIds.size > 0) {
+                this.logDebug(`Agent returned to idle; clearing ${this.state.deferredSlotIds.size} deferred slot marker(s) for replanning`);
+                this.state.deferredSlotIds.clear();
+            }
             // Agent is idle - handle pending slots
             await this.handleIdleAgent(response.slots);
         }
@@ -191,6 +197,10 @@ class CalendarScheduler {
                 // Revert slot to not_started status
                 await this.revertSlot(slot);
                 await this.config.bridge.reportAgentStatus({ status: 'idle' });
+                this.state.isProcessing = false;
+                this.state.currentSlot = null;
+                await this.triggerReplan('wake failure');
+                return;
             }
             // Note: isProcessing remains true until agent signals completion
             // This is handled by external completion callback
@@ -386,6 +396,7 @@ Please use this time for the scheduled activity.`;
         finally {
             this.state.isProcessing = false;
             this.state.currentSlot = null;
+            await this.triggerReplan('slot completion');
         }
     }
     /**
@@ -418,6 +429,7 @@ Please use this time for the scheduled activity.`;
         finally {
             this.state.isProcessing = false;
             this.state.currentSlot = null;
+            await this.triggerReplan('slot abort');
         }
     }
     /**
@@ -471,6 +483,23 @@ Please use this time for the scheduled activity.`;
             this.config.logger.error('Failed to resume slot:', err);
         }
     }
+    /**
+     * Trigger an immediate replanning pass after the current slot lifecycle ends.
+     * This lets previously deferred/not-started slots compete again as soon as
+     * the agent becomes idle.
+     */
+    async triggerReplan(reason) {
+        if (!this.state.isRunning) {
+            return;
+        }
+        this.logDebug(`Triggering immediate replanning after ${reason}`);
+        try {
+            await this.runHeartbeat();
+        }
+        catch (err) {
+            this.config.logger.error(`Failed to trigger replanning after ${reason}:`, err);
+        }
+    }
     /**
      * Get a stable ID for a slot (real or virtual).
      */