feat: bridge lane health API and dual-chain token list updates

Co-authored-by: Cursor <cursoragent@cursor.com>

config/explorer-bridge-proof-transfers.example.json

@@ -0,0 +1,21 @@
+{
+  "updated": "2026-05-23T13:07:00Z",
+  "sprint": "tier-a-week-3",
+  "note": "Example shape for MISSION_CONTROL_PROOF_TRANSFERS_JSON. Operator live file: reports/status/bridge-lane-proof-transfers-latest.json (gitignored). Populate with scripts/bridge/run-lane-proof-transfers.sh --execute.",
+  "lanes": {
+    "chain138": [
+      {
+        "tx_hash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+        "amount_eth": "0.001",
+        "dest_chain": "mainnet",
+        "dest_selector": "5009297550715157269",
+        "bridge": "0xcacfd227A040002e49e2e01626363071324f820a",
+        "recorded_at": "2026-05-23T00:00:00Z"
+      }
+    ],
+    "gnosis": [],
+    "cronos": [],
+    "celo": [],
+    "wemix": []
+  }
+}