Update public RPC capability metadata

backend/api/rest/config/metamask/CHAIN138_RPC_CAPABILITIES.json

@@ -2,7 +2,7 @@
   "name": "Chain 138 RPC Capabilities",
   "version": {
     "major": 1,
-    "minor": 0,
+    "minor": 1,
     "patch": 0
   },
   "generatedBy": "SolaceScanScout",
@@ -28,16 +28,15 @@
       "eth_blockNumber",
       "eth_syncing",
       "eth_gasPrice",
+      "eth_maxPriorityFeePerGas",
       "eth_feeHistory",
       "eth_estimateGas",
       "eth_getCode"
     ],
-    "unsupportedMethods": [
-      "eth_maxPriorityFeePerGas"
-    ],
+    "unsupportedMethods": [],
     "notes": [
       "eth_feeHistory is available for wallet fee estimation.",
-      "eth_maxPriorityFeePerGas is currently not exposed on the public RPC, so some wallets will fall back to simpler fee heuristics."
+      "eth_maxPriorityFeePerGas is exposed on the public RPC for wallet-grade fee suggestion compatibility."
     ]
   },
   "tracing": {

docs/EXPLORER_API_ACCESS.md

@@ -64,7 +64,7 @@ Current public-RPC summary:
 | `eth_gasPrice` | Supported | Basic fee quote path works. |
 | `eth_feeHistory` | Supported | Modern wallet fee estimation can use it. |
 | `eth_estimateGas` / `eth_getCode` | Supported | Required for normal wallet and app flows. |
-| `eth_maxPriorityFeePerGas` | Not supported on public RPC | Wallets may fall back to simpler heuristics. |
+| `eth_maxPriorityFeePerGas` | Supported | MetaMask and other wallets can use the modern priority-fee path directly. |
 | `trace_block` / `trace_replayBlockTransactions` | Supported | Explorer/indexer tracing works on the public tier. |
 | `debug_traceBlockByNumber` | Not enabled on public RPC | Intentional for the public tier; do not assume debug tracing is available. |
 
@@ -72,7 +72,7 @@ MetaMask behavior to keep in mind:
 
 - MetaMask primarily depends on JSON-RPC correctness, not explorer richness.
 - `wallet_addEthereumChain` and `wallet_watchAsset` help wallet UX, but they do not replace missing RPC methods.
-- If `eth_maxPriorityFeePerGas` is unavailable, MetaMask can still work, but fee UX may be less polished than on top-tier public networks.
+- `eth_maxPriorityFeePerGas` is now available on the public RPC, so fee UX should align better with mainstream EVM wallet expectations.
 
 You can verify the published matrix against live infrastructure with: