Add actionable push notifications and fix recurring task completion

Features:
- Add task action buttons to push notifications (complete, view, cancel, etc.)
- Add button types logic for different task states (overdue, in_progress, etc.)
- Implement Chain of Responsibility pattern for task categorization
- Add comprehensive kanban categorization documentation

Fixes:
- Reset recurring task status to Pending after completion so tasks appear
  in correct kanban column (was staying in "In Progress")
- Fix PostgreSQL EXTRACT function error in overdue notifications query
- Update seed data to properly set next_due_date for recurring tasks

Admin:
- Add tasks list to residence detail page
- Fix task edit page to properly handle all fields

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

internal/admin/handlers/task_handler.go

@@ -169,7 +169,6 @@ func (h *AdminTaskHandler) Update(c *gin.Context) {
 			c.JSON(http.StatusBadRequest, gin.H{"error": "Residence not found"})
 			return
 		}
-		task.ResidenceID = *req.ResidenceID
 	}
 	// Verify created_by if changing
 	if req.CreatedByID != nil {
@@ -178,7 +177,6 @@ func (h *AdminTaskHandler) Update(c *gin.Context) {
 			c.JSON(http.StatusBadRequest, gin.H{"error": "Created by user not found"})
 			return
 		}
-		task.CreatedByID = *req.CreatedByID
 	}
 	// Verify assigned_to if changing
 	if req.AssignedToID != nil {
@@ -187,57 +185,68 @@ func (h *AdminTaskHandler) Update(c *gin.Context) {
 			c.JSON(http.StatusBadRequest, gin.H{"error": "Assigned to user not found"})
 			return
 		}
-		task.AssignedToID = req.AssignedToID
+	}
+
+	// Build update map with only the fields that were provided
+	updates := make(map[string]interface{})
+	if req.ResidenceID != nil {
+		updates["residence_id"] = *req.ResidenceID
+	}
+	if req.CreatedByID != nil {
+		updates["created_by_id"] = *req.CreatedByID
+	}
+	if req.AssignedToID != nil {
+		updates["assigned_to_id"] = *req.AssignedToID
 	}
 	if req.Title != nil {
-		task.Title = *req.Title
+		updates["title"] = *req.Title
 	}
 	if req.Description != nil {
-		task.Description = *req.Description
+		updates["description"] = *req.Description
 	}
 	if req.CategoryID != nil {
-		task.CategoryID = req.CategoryID
+		updates["category_id"] = *req.CategoryID
 	}
 	if req.PriorityID != nil {
-		task.PriorityID = req.PriorityID
+		updates["priority_id"] = *req.PriorityID
 	}
 	if req.StatusID != nil {
-		task.StatusID = req.StatusID
+		updates["status_id"] = *req.StatusID
 	}
 	if req.FrequencyID != nil {
-		task.FrequencyID = req.FrequencyID
+		updates["frequency_id"] = *req.FrequencyID
 	}
 	if req.DueDate != nil {
 		if dueDate, err := time.Parse("2006-01-02", *req.DueDate); err == nil {
-			task.DueDate = &dueDate
+			updates["due_date"] = dueDate
 		}
 	}
 	if req.EstimatedCost != nil {
-		d := decimal.NewFromFloat(*req.EstimatedCost)
-		task.EstimatedCost = &d
+		updates["estimated_cost"] = decimal.NewFromFloat(*req.EstimatedCost)
 	}
 	if req.ActualCost != nil {
-		d := decimal.NewFromFloat(*req.ActualCost)
-		task.ActualCost = &d
+		updates["actual_cost"] = decimal.NewFromFloat(*req.ActualCost)
 	}
 	if req.ContractorID != nil {
-		task.ContractorID = req.ContractorID
+		updates["contractor_id"] = *req.ContractorID
 	}
 	if req.ParentTaskID != nil {
-		task.ParentTaskID = req.ParentTaskID
+		updates["parent_task_id"] = *req.ParentTaskID
 	}
 	if req.IsCancelled != nil {
-		task.IsCancelled = *req.IsCancelled
+		updates["is_cancelled"] = *req.IsCancelled
 	}
 	if req.IsArchived != nil {
-		task.IsArchived = *req.IsArchived
+		updates["is_archived"] = *req.IsArchived
 	}
 
-	if err := h.db.Save(&task).Error; err != nil {
+	// Use Updates with map to only update specified fields
+	if err := h.db.Model(&task).Updates(updates).Error; err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to update task"})
 		return
 	}
 
+	// Reload with preloads for response
 	h.db.Preload("Residence").Preload("CreatedBy").Preload("Category").Preload("Priority").Preload("Status").First(&task, id)
 	c.JSON(http.StatusOK, h.toTaskResponse(&task))
 }
@@ -320,7 +329,7 @@ func (h *AdminTaskHandler) Delete(c *gin.Context) {
 	// Soft delete - archive and cancel
 	task.IsArchived = true
 	task.IsCancelled = true
-	if err := h.db.Save(&task).Error; err != nil {
+	if err := h.db.Omit("Residence", "CreatedBy", "AssignedTo", "Category", "Priority", "Status", "Frequency", "ParentTask", "Completions").Save(&task).Error; err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to delete task"})
 		return
 	}