fix(rpn): remove duplicate ConstantsProvider initialization (task 4j)

NewOperations() no longer creates a ConstantsProvider internally since
NewRPN() always calls SetConstants() immediately after. Eliminates a
wasted allocation with no behavioral change.

1 files changed, 1 insertions, 3 deletions

diff --git a/internal/rpn/operations.go b/internal/rpn/operations.go
index 3dfc7c2..a3d660c 100644
--- a/internal/rpn/operations.go
+++ b/internal/rpn/operations.go
@@ -29,17 +29,15 @@ var (
 )
 
 // NewOperations creates a new Operations instance with the given variable store.
-// Creates a new ConstantsProvider internally; use SetConstants to replace it.
+// Does not create a ConstantsProvider internally; caller must use SetConstants.
 // If no registry is provided, defaults to the global MetricRegistry.
 func NewOperations(vars VariableStore, reg ...*MetricRegistry) *Operations {
-	consts := NewConstants()
 	r := GetMetricRegistry()
 	if len(reg) > 0 && reg[0] != nil {
 		r = reg[0]
 	}
 	return &Operations{
 		vars:           vars,
-		consts:         consts,
 		mode:           FloatMode, // default
 		prefixMode:     SI,        // default
 		metricRegistry: r,