fix(joinir): Phase 133 P1 - Skip Trim promoted_pairs resolution (defer to TrimLoopLowerer SSOT)

src/mir/builder/control_flow/joinir/patterns/pattern2_with_break.rs

@@ -276,7 +276,17 @@ fn promote_and_prepare_carriers(
                 promoted_var,
                 carrier_name,
             } => {
+                // Phase 133 P1: Check if this is a Trim promotion (A-3 pattern)
+                // Trim promotions are handled by TrimLoopLowerer (apply_trim_and_normalize)
+                // which provides SSOT for env/join_id, so we defer to that path.
+                let is_trim_promotion = promoted_carrier.trim_helper().is_some();
+
+                // Phase 133 P1: Only add to promoted_pairs for non-Trim promotions
+                // (e.g., DigitPos/A-4). Trim carriers don't have join_id in carrier_info
+                // because they use loop_var_name instead of carriers vector.
+                if !is_trim_promotion {
                     promoted_pairs.push((promoted_var.clone(), carrier_name.clone()));
+                }
 
                 #[cfg(feature = "normalized_dev")]
                 {
@@ -339,6 +349,13 @@ fn promote_and_prepare_carriers(
                                 helper.carrier_name, helper.original_var, helper.whitespace_chars
                             ),
                         );
+                        log_pattern2(
+                            verbose,
+                            "phase133",
+                            format!(
+                                "Phase 133 P1: Trim promotion deferred to TrimLoopLowerer (SSOT for env/join_id)"
+                            ),
+                        );
                     } else {
                         return Err(error_messages::format_error_pattern2_trim_not_safe(
                             &helper.carrier_name,
@@ -347,6 +364,9 @@ fn promote_and_prepare_carriers(
                     }
                 }
 
+                // Phase 133 P1: Only normalize for non-Trim promotions
+                // Trim promotions are normalized by TrimLoopLowerer
+                if !is_trim_promotion {
                     inputs.break_condition_node = DigitPosConditionNormalizer::normalize(
                         &inputs.break_condition_node,
                         &promoted_var,
@@ -362,6 +382,7 @@ fn promote_and_prepare_carriers(
                         ),
                     );
                 }
+            }
             ConditionPromotionResult::CannotPromote { reason, vars } => {
                 return Err(error_messages::format_error_pattern2_promotion_failed(
                     &vars, &reason,