feat: add nativeToken.address to tempo metadata (#1584)

Co-authored-by: Haggis <haggis@hyperlane.xyz>

Author: haggis-hyperlane

.changeset/tempo-native-token-address.md

@@ -0,0 +1,5 @@
+---
+'@hyperlane-xyz/registry': patch
+---
+
+- Added the `nativeToken.address` field to tempo metadata, pointing at the pathUSD TIP-20 contract (0x20c0000000000000000000000000000000000000). This flags that tempo's gas token is an ERC20 contract rather than a protocol-level native token, so funding/balance tooling should use balanceOf / ERC20 transfers instead of eth_getBalance / native sends.

chains/metadata.yaml

@@ -9003,6 +9003,7 @@ tempo:
   gasCurrencyCoinGeckoId: usd-coin
   name: tempo
   nativeToken:
+    address: "0x20c0000000000000000000000000000000000000"
     decimals: 6
     name: pathUSD
     symbol: pathUSD

chains/tempo/metadata.yaml

@@ -17,6 +17,7 @@ domainId: 4217
 gasCurrencyCoinGeckoId: usd-coin
 name: tempo
 nativeToken:
+  address: "0x20c0000000000000000000000000000000000000"
   decimals: 6
   name: pathUSD
   symbol: pathUSD