Add CancelOrder option for cash tasks

When worker passes CancelOrder: true to complete.cfm:
- Skips all cash validation and financial processing
- Sets order status to 6 (cancelled)
- Completes the task normally
- Returns OrderCancelled: true in response

For when customer changes their mind about paying with cash.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

api/tasks/complete.cfm

@@ -38,6 +38,7 @@
 <!--- Optional: Worker rating of customer (when required or voluntary) --->
 <cfset workerRating = structKeyExists(data,"workerRating") ? data.workerRating : {}>
 <cfset CashReceivedCents = val( structKeyExists(data,"CashReceivedCents") ? data.CashReceivedCents : 0 )>
+<cfset CancelOrder = structKeyExists(data,"CancelOrder") AND data.CancelOrder EQ true>
 
 <cfif TaskID LTE 0>
   <cfset apiAbort({ "OK": false, "ERROR": "missing_params", "MESSAGE": "TaskID is required." })>
@@ -110,8 +111,9 @@
 
   <!--- === CASH TASK VALIDATION === --->
   <cfset cashResult = {}>
-  <!--- Skip cash processing for orphaned tasks (no order linked) --->
+  <cfset orderCancelled = false>
-  <cfif isCashTask AND qTask.OrderID GT 0>
+  <!--- Skip cash processing for orphaned tasks (no order linked) OR if cancelling --->
+  <cfif isCashTask AND qTask.OrderID GT 0 AND NOT CancelOrder>
     <cfif CashReceivedCents LTE 0>
       <cfset apiAbort({ "OK": false, "ERROR": "cash_required", "MESSAGE": "Cash amount is required for cash tasks." })>
     </cfif>
@@ -191,7 +193,17 @@
   <!--- Update order status based on task type --->
   <cfset orderUpdated = false>
   <cfif qTask.OrderID GT 0>
-    <cfif isCashTask>
+    <cfif CancelOrder>
+      <!--- Cancel order: Set status to 6 (Cancelled), no financial processing --->
+      <cfset queryTimed("
+        UPDATE Orders
+        SET StatusID = 6,
+            PaymentStatus = 'cancelled',
+            LastEditedOn = NOW()
+        WHERE ID = ?
+      ", [ { value = qTask.OrderID, cfsqltype = "cf_sql_integer" } ], { datasource = "payfrit" })>
+      <cfset orderCancelled = true>
+    <cfelseif isCashTask>
       <!--- Cash task: Set to status 1 (Submitted/Paid) to trigger kitchen flow --->
       <!--- Kitchen will then move to 2, then 3 (which creates delivery task) --->
       <cfset queryTimed("
@@ -275,7 +287,7 @@
 
   <!--- === CASH TRANSACTION PROCESSING === --->
   <cfset cashProcessed = false>
-  <cfif isCashTask AND CashReceivedCents GT 0 AND qTask.OrderID GT 0>
+  <cfif isCashTask AND CashReceivedCents GT 0 AND qTask.OrderID GT 0 AND NOT CancelOrder>
     <!--- Credit customer change to their balance --->
     <cfif changeCents GT 0 AND customerUserID GT 0>
       <cfset queryTimed("
@@ -384,9 +396,10 @@
   <cfset response = {
     "OK": true,
     "ERROR": "",
-    "MESSAGE": "Task completed successfully.",
+    "MESSAGE": orderCancelled ? "Order cancelled." : "Task completed successfully.",
     "TaskID": TaskID,
     "OrderUpdated": orderUpdated,
+    "OrderCancelled": orderCancelled,
     "RatingsCreated": ratingsCreated,
     "LedgerCreated": ledgerCreated,
     "CashProcessed": cashProcessed