Add ronin-mainnet and ronin-saigon op-reth (OP-stack migration, May 12 2026)

Ronin migrated from standalone sidechain to OP-stack L2 operated by
Conduit, with EigenDA V2 for data availability. New composes follow
conduitxyz/ronin-migration-reth-docker: conduit-op-reth fork +
op-node v1.16.5 + eigenda-proxy 2.7.0 relay.

- op/ronin/{mainnet,saigon}: Conduit genesis (bedrockBlock patched to
  55577500 / 45528550) and rollup.json (alt_da GenericCommitment injected)
- saigon is a NEW chain post-migration: chainid 202601, L1 sepolia
- also regenerated: xlayer-testnet composes (dshackle chain label was
  corrupted to 'ronin' by an override typo), native ronin/ronin composes
  (upstream labels follow new chain ids), reference-rpc-endpoint.json

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

reference-rpc-endpoint.json

@@ -670,12 +670,18 @@
       "https://rpc.minato.soneium.org"
     ]
   },
-  "ronin": {
+  "xlayer-testnet": {
     "id": 1952,
     "urls": [
       "https://testrpc.xlayer.tech"
     ]
   },
+  "ronin": {
+    "id": 2020,
+    "urls": [
+      "https://ronin.lgns.net/rpc"
+    ]
+  },
   "alephzero-sepolia": {
     "id": 2039,
     "urls": [
@@ -934,7 +940,8 @@
       "https://developer-access-mainnet.base.org/",
       "https://base.gateway.tenderly.co",
       "https://base-rpc.publicnode.com",
-      "https://rpcfree.com/base-rpc"
+      "https://rpcfree.com/base-rpc",
+      "https://rpc.baseazul.dev"
     ]
   },
   "evmos-testnet": {
@@ -1405,9 +1412,9 @@
     ]
   },
   "ronin-saigon": {
-    "id": 2021,
+    "id": 202601,
     "urls": [
-      "https://ronin-testnet.gateway.tenderly.co"
+      "https://saigon-testnet.roninchain.com/rpc"
     ]
   },
   "filecoin-calibration": {
@@ -1556,6 +1563,19 @@
       "https://api.zan.top/node/v1/jovay/mainnet/${ZAN_API_KEY}"
     ]
   },
+  "humanity": {
+    "id": 6985385,
+    "urls": [
+      "https://humanity-mainnet.g.alchemy.com/public"
+    ]
+  },
+  "humanity-testnet": {
+    "id": 7080969,
+    "urls": [
+      "https://rpc.testnet.humanity.org",
+      "https://humanity-testnet.g.alchemy.com/public"
+    ]
+  },
   "zora": {
     "id": 7777777,
     "urls": [