feat: add "olderThan" segment filter operator

- Added `olderThan` and `triggeredOlderThan` operators to types and schemas
- Implemented backend logic for `olderThan` operator in SegmentService
- Updated SegmentFilterBuilder and shared index/types files to support new time-based operators

apps/web/src/components/SegmentFilterBuilder.tsx

@@ -28,11 +28,13 @@ const STANDARD_OPERATORS: {value: SegmentFilterOperator; label: string}[] = [
   {value: 'exists', label: 'Exists'},
   {value: 'notExists', label: 'Does not exist'},
   {value: 'within', label: 'Within (time)'},
+  {value: 'olderThan', label: 'Older than (time)'},
 ];
 
 const EVENT_OPERATORS: {value: SegmentFilterOperator; label: string}[] = [
   {value: 'triggered', label: 'Ever occurred'},
   {value: 'triggeredWithin', label: 'Occurred within'},
+  {value: 'triggeredOlderThan', label: 'Occurred over (time) ago'},
   {value: 'notTriggered', label: 'Never occurred'},
 ];
 
@@ -172,6 +174,7 @@ const FilterRow = memo(function FilterRow({filter, onChange, onRemove, available
           'exists',
           'notExists',
           'within',
+          'olderThan',
         ].includes(op.value),
       );
     }
@@ -183,7 +186,7 @@ const FilterRow = memo(function FilterRow({filter, onChange, onRemove, available
   }, []);
 
   const needsValue = !['exists', 'notExists', 'triggered', 'notTriggered'].includes(filter.operator);
-  const needsUnit = ['within', 'triggeredWithin'].includes(filter.operator);
+  const needsUnit = ['within', 'triggeredWithin', 'olderThan', 'triggeredOlderThan'].includes(filter.operator);
 
   // Get field type from available fields
   const fieldOption = useMemo(
@@ -217,6 +220,7 @@ const FilterRow = memo(function FilterRow({filter, onChange, onRemove, available
           'exists',
           'notExists',
           'within',
+          'olderThan',
         ].includes(op.value),
       );
     }
@@ -232,7 +236,7 @@ const FilterRow = memo(function FilterRow({filter, onChange, onRemove, available
       const selectedField = availableFields.find(f => f.value === value);
       const newFieldType = selectedField?.type || 'string';
       const isEvent = newFieldType === 'event' || newFieldType === 'email';
-      const currentOperatorIsEvent = ['triggered', 'triggeredWithin', 'notTriggered'].includes(filter.operator);
+      const currentOperatorIsEvent = ['triggered', 'triggeredWithin', 'triggeredOlderThan', 'notTriggered'].includes(filter.operator);
 
       // Determine default operator and value based on new field type
       let newOperator = filter.operator;
@@ -267,7 +271,7 @@ const FilterRow = memo(function FilterRow({filter, onChange, onRemove, available
         newUnit = undefined;
 
         // If the new operator doesn't support units but we had them, ensure value is appropriate
-        const newOperatorNeedsUnit = ['within', 'triggeredWithin'].includes(newOperator);
+        const newOperatorNeedsUnit = ['within', 'triggeredWithin', 'olderThan', 'triggeredOlderThan'].includes(newOperator);
         if (!newOperatorNeedsUnit) {
           // Convert numeric value back to appropriate type for the field
           newValue = getDefaultValueForType(newFieldType);
@@ -399,8 +403,8 @@ const FilterRow = memo(function FilterRow({filter, onChange, onRemove, available
               // Check if we're switching between operators that need different value types
               const oldNeedsValue = !['exists', 'notExists', 'triggered', 'notTriggered'].includes(oldOperator);
               const newNeedsValue = !['exists', 'notExists', 'triggered', 'notTriggered'].includes(newOperator);
-              const oldNeedsUnit = ['within', 'triggeredWithin'].includes(oldOperator);
-              const newNeedsUnit = ['within', 'triggeredWithin'].includes(newOperator);
+              const oldNeedsUnit = ['within', 'triggeredWithin', 'olderThan', 'triggeredOlderThan'].includes(oldOperator);
+              const newNeedsUnit = ['within', 'triggeredWithin', 'olderThan', 'triggeredOlderThan'].includes(newOperator);
 
               const updatedFilter: SegmentFilter = {...filter, operator: newOperator};