Update dshackle 0.78.6 -> 0.78.7

Co-Authored-By: Claude Agent <claude@stakesquid.eu>

reference-rpc-endpoint.json

@@ -267,7 +267,8 @@
       "https://rpc-mainnet.matic.quiknode.pro",
       "https://polygon-bor-rpc.publicnode.com",
       "https://polygon.gateway.tenderly.co",
-      "https://rpc.satelink.network/rpc/polygon"
+      "https://rpc.satelink.network/rpc/polygon",
+      "https://rpcfree.com/polygon-rpc"
     ]
   },
   "monad-mainnet": {
@@ -463,6 +464,12 @@
       "https://lite.chain.opentensor.ai"
     ]
   },
+  "stable": {
+    "id": 988,
+    "urls": [
+      "https://rpc.stable.xyz"
+    ]
+  },
   "hyperliquid-testnet": {
     "id": 998,
     "urls": [
@@ -682,6 +689,12 @@
       "https://mainnet.snaxchain.io"
     ]
   },
+  "stable-testnet": {
+    "id": 2201,
+    "urls": [
+      "https://rpc.testnet.stable.xyz"
+    ]
+  },
   "kava-testnet": {
     "id": 2221,
     "urls": [
@@ -1066,6 +1079,12 @@
       "https://rpc1.core.ab.org"
     ]
   },
+  "adi": {
+    "id": 36900,
+    "urls": [
+      "https://rpc.adifoundation.ai"
+    ]
+  },
   "lens-testnet": {
     "id": 37111,
     "urls": [
@@ -1289,6 +1308,12 @@
       "https://rpc.plume.org"
     ]
   },
+  "plume-testnet": {
+    "id": 98867,
+    "urls": [
+      "https://testnet-rpc.plume.org"
+    ]
+  },
   "vechain": {
     "id": 100009,
     "urls": [
@@ -1525,10 +1550,6 @@
       "https://rpc.opcelestia-raspberry.gelato.digital"
     ]
   },
-  "plume-testnet": {
-    "id": 161221135,
-    "urls": []
-  },
   "blast-sepolia": {
     "id": 168587773,
     "urls": [