docs: add DeFi Oracle Meta (chainId 138) Uniswap V2/V3 deployments

Official bytecode deployments on dfio_meta_main — not same-address as mainnet.

Author: defiQUG

docs/contracts/chain138/uniswap-v2.json

@@ -0,0 +1,21 @@
+{
+  "chainId": 138,
+  "chainName": "DeFi Oracle Meta Mainnet",
+  "nativeCurrency": {
+    "name": "Ether",
+    "symbol": "ETH",
+    "decimals": 18
+  },
+  "contracts": {
+    "factory": "0x0C30F6e67Ab3667fCc2f5CEA8e274ef1FB920279",
+    "router02": "0x3019A7fDc76ba7F64F18d78e66842760037ee638",
+    "weth": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"
+  },
+  "pairs": {
+    "wethUsdt": "0xda2A5AC9F4892EAd47093A374779Ba790f23DC84",
+    "wethUsdc": "0xCD255F4f6c4E861490b3C7E0300613318B870f36",
+    "cusdtCusdc": "0x7bd707294AACb47ab109780be8a096700741886d"
+  },
+  "deployedAtBlock": 4041469,
+  "source": "smom-dbis-138 vendor uniswap-v2-core/periphery official bytecode"
+}

docs/contracts/chain138/uniswap-v3.json

@@ -0,0 +1,16 @@
+{
+  "chainId": 138,
+  "chainName": "DeFi Oracle Meta Mainnet",
+  "contracts": {
+    "UniswapV3Factory": "0x2f7219276e3ce367dB9ec74C1196a8ecEe67841C",
+    "SwapRouter02": "0xde9cD8ee2811E6E64a41D5F68Be315d33995975E",
+    "NonfungiblePositionManager": "0x31b68BE5af4Df565Ce261dfe53D529005D947B48",
+    "QuoterV2": "0x6abbB1CEb2468e748a03A00CD6aA9BFE893AFa1f"
+  },
+  "pools": {
+    "wethUsdt": "0xa893add35aEfe6A6d858EB01828bE4592f12C9F5",
+    "wethUsdc": "0xEC745bfb6b3cd32f102d594E5F432d8d85B19391"
+  },
+  "fromBlock": 3510162,
+  "source": "DODO smart-route bundle + native UniV3 deploy"
+}