Phase 33 NORM canon test: enforce normalized dev route for P1/P2/JP mini

src/config/env/joinir_dev.rs

@@ -99,6 +99,24 @@ pub fn read_quoted_ifmerge_enabled() -> bool {
     env_bool("HAKO_JOINIR_READ_QUOTED_IFMERGE")
 }
 
+/// NYASH_JOINIR_NORMALIZED_DEV_RUN=1 - Run JoinIR runner through Normalized roundtrip (dev only)
+pub fn joinir_normalized_dev_run_enabled() -> bool {
+    // Feature gate at call sites still applies; this helper just centralizes the env read.
+    env_bool("NYASH_JOINIR_NORMALIZED_DEV_RUN")
+}
+
+/// Unified switch for Normalized dev experiments (feature + env).
+///
+/// - Requires `--features normalized_dev`
+/// - Requires `NYASH_JOINIR_NORMALIZED_DEV_RUN=1`
+pub fn normalized_dev_enabled() -> bool {
+    if cfg!(feature = "normalized_dev") {
+        joinir_normalized_dev_run_enabled()
+    } else {
+        false
+    }
+}
+
 /// Phase 82: NYASH_PHI_FALLBACK_DISABLED=1 - Disable if_phi fallback (dev mode)
 ///
 /// lifecycle.rs の infer_type_from_phi* callsite を封じて、
@@ -124,7 +142,7 @@ pub fn read_quoted_ifmerge_enabled() -> bool {
 /// Phase 84-5: if_phi.rs 削除後は常に true
 /// 環境変数は統計目的でのみ残す
 pub fn phi_fallback_disabled() -> bool {
-    true  // Phase 84-5: Always disabled after if_phi.rs deletion
+    true // Phase 84-5: Always disabled after if_phi.rs deletion
 }
 
 /// Phase 84-5: 統計・メトリクス用（オプション）