Add Uniswap Universal Router deployments across 14 networks (#296)

* Add Uniswap Universal Router deployments across 14 networks

Adds the Universal Router v2.1.1 deployments (2026-06-25) to the eight
networks that already carry Uniswap entries, creates the missing Blast
b2c.json, and adds Uniswap entries for twelve new networks (v2.0 and
v2.1.1 routers where each exists). Addresses are taken from Uniswap
deployment records and follow the same b2c.json + per-address ABI
convention as #284.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* Add per-network b2c schemas for the five new network directories

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

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: ckorchane-ledger <104824609+ckorchane-ledger@users.noreply.github.com>

Author: 3 people

arbitrum/uniswap/abis/0x8b844f885672f333bc0042cb669255f93a4c1e6b.abi.json

@@ -23,6 +23,17 @@
                     "plugin": "Uniswap"
                 }
             }
+        },
+        {
+            "address": "0x8b844f885672f333bc0042cb669255f93a4c1e6b",
+            "contractName": "UniversalRouter",
+            "selectors": {
+                "0x3593564c": {
+                    "erc20OfInterest": [],
+                    "method": "execute",
+                    "plugin": "Uniswap"
+                }
+            }
         }
     ],
     "name": "Uniswap"