CSHLD-788: wasm-utxo: Accept NU7 in create_zcash_v6 command

packages/wasm-utxo/cli/src/psbt/create_zcash_v6.rs

@@ -14,15 +14,22 @@ pub fn handle_create_zcash_v6_command(
     let consensus_branch_id =
         parse_u32_flexible(&consensus_branch_id).context("invalid --consensus-branch-id")?;
 
-    // v6 (Ironwood) is only valid at or after NU6.3 activation, and NU6.3 is currently the
-    // latest defined upgrade — so the only branch id that satisfies "at or after" today is
-    // NU6.3's own. Reject anything else rather than building an unshieldable PSBT the CLI's
-    // later steps would fail on with a less obvious error.
-    let nu6_3_branch_id = NetworkUpgrade::Nu6_3.branch_id();
-    if consensus_branch_id != nu6_3_branch_id {
+    // v6 (Ironwood) is only valid at or after NU6.3 activation. Reject any branch id that
+    // doesn't correspond to NU6.3 or later, rather than building a PSBT the CLI's later steps
+    // would fail on with a less obvious error.
+    let valid_branch_ids: &[u32] = &[
+        NetworkUpgrade::Nu6_3.branch_id(),
+        NetworkUpgrade::Nu7.branch_id(),
+    ];
+    if !valid_branch_ids.contains(&consensus_branch_id) {
         bail!(
             "--consensus-branch-id 0x{consensus_branch_id:08x} is not at or after NU6.3 \
-             (Ironwood) activation (expected 0x{nu6_3_branch_id:08x})"
+             (Ironwood) activation (expected one of: {})",
+            valid_branch_ids
+                .iter()
+                .map(|id| format!("0x{id:08x}"))
+                .collect::<Vec<_>>()
+                .join(", ")
         );
     }