Normalize Gnosis bridge chain for USDC

Proof: Gnosis NEAR Intents assets now persist bridge chain eth:100, repo seed corrects legacy USDC chain rows, and tests prove USDC is not inventory-enabled until a pair activation enables it.

Assumptions: NEAR Intents bridge deposit_address uses eth:100 for Gnosis funding handles while dashboard blockchain labels remain gnosis.

Still fake: USDC deposit credit and live solver fills are not proven by this change; supported_tokens RPC remains upstream-unavailable.

src/core/trading-config.mjs

@@ -33,6 +33,7 @@ export function normalizeOneClickToken(token) {
   const symbol = stringField(token.symbol, 'symbol');
   const decimals = integerField(token.decimals, 'decimals');
   const blockchain = stringField(token.blockchain ?? token.chain, 'blockchain');
+  const chain = normalizeBridgeChain({ assetId, blockchain });
   const contractAddress = optionalString(token.contractAddress ?? token.contract_address);
   const latestPrice = token.price == null ? null : String(token.price);
   const priceUpdatedAt = optionalTimestamp(token.priceUpdatedAt ?? token.price_updated_at);
@@ -44,7 +45,7 @@ export function normalizeOneClickToken(token) {
     label: symbol,
     decimals,
     blockchain,
-    chain: blockchain,
+    chain,
     contractAddress,
     latestPrice,
     priceUpdatedAt,
@@ -130,7 +131,7 @@ export function buildSeedAssets() {
       label: 'USDC',
       decimals: 6,
       blockchain: 'gnosis',
-      chain: 'gnosis',
+      chain: 'eth:100',
       contractAddress: '0x2a22f9c3b484c3629090feed35f17ff8f88f76f0',
       latestPrice: null,
       priceUpdatedAt: null,
@@ -255,6 +256,15 @@ function optionalString(value) {
   return normalized || null;
 }
 
+function normalizeBridgeChain({ assetId, blockchain }) {
+  const normalizedBlockchain = String(blockchain || '').trim();
+  const normalizedAssetId = String(assetId || '').trim();
+  if (normalizedBlockchain === 'gnosis' || normalizedAssetId.startsWith('nep141:gnosis-')) {
+    return 'eth:100';
+  }
+  return normalizedBlockchain;
+}
+
 function integerField(value, field) {
   const number = Number(value);
   if (!Number.isInteger(number) || number < 0) {

src/lib/postgres.mjs

@@ -1564,11 +1564,11 @@ async function upsertSeedAsset(pool, { asset, now }) {
         symbol = EXCLUDED.symbol,
         label = EXCLUDED.label,
         decimals = EXCLUDED.decimals,
-        blockchain = COALESCE(${TRADING_ASSETS_TABLE}.blockchain, EXCLUDED.blockchain),
+        blockchain = EXCLUDED.blockchain,
-        chain = COALESCE(${TRADING_ASSETS_TABLE}.chain, EXCLUDED.chain),
+        chain = EXCLUDED.chain,
         contract_address = COALESCE(${TRADING_ASSETS_TABLE}.contract_address, EXCLUDED.contract_address),
         supported = ${TRADING_ASSETS_TABLE}.supported OR EXCLUDED.supported,
-        enabled_for_inventory = true,
+        enabled_for_inventory = ${TRADING_ASSETS_TABLE}.enabled_for_inventory OR EXCLUDED.enabled_for_inventory,
         role = COALESCE(${TRADING_ASSETS_TABLE}.role, EXCLUDED.role),
         withdraw_address = COALESCE(NULLIF(${TRADING_ASSETS_TABLE}.withdraw_address, ''), EXCLUDED.withdraw_address),
         raw_payload = CASE
@@ -1766,7 +1766,7 @@ async function upsertImportedAsset(pool, { asset, fetchedAt }) {
         label = EXCLUDED.label,
         decimals = EXCLUDED.decimals,
         blockchain = EXCLUDED.blockchain,
-        chain = COALESCE(${TRADING_ASSETS_TABLE}.chain, EXCLUDED.chain),
+        chain = EXCLUDED.chain,
         contract_address = EXCLUDED.contract_address,
         latest_price = EXCLUDED.latest_price,
         price_updated_at = EXCLUDED.price_updated_at,

test/trading-config.test.mjs

@@ -38,6 +38,21 @@ test('1Click token normalizer preserves live asset fields', () => {
   assert.equal(token.priceUpdatedAt, '2026-05-12T16:25:00.425Z');
 });
 
+test('1Click token normalizer maps Gnosis assets to bridge chain id', () => {
+  const token = normalizeOneClickToken({
+    assetId: CURRENT_USDC_ASSET_ID,
+    decimals: 6,
+    blockchain: 'gnosis',
+    symbol: 'USDC',
+    price: 1,
+    priceUpdatedAt: '2026-05-12T16:25:00.425Z',
+    contractAddress: '0x2a22f9c3b484c3629090feed35f17ff8f88f76f0',
+  });
+
+  assert.equal(token.blockchain, 'gnosis');
+  assert.equal(token.chain, 'eth:100');
+});
+
 test('supported token import is idempotent, does not enable inventory, and retires missing assets', async () => {
   const pool = createMemoryPool();
   const first = await importSupportedAssets(pool, {
@@ -106,9 +121,42 @@ test('seeded DB config preserves current nBTC/EURe pair, 49 bps edge, and legacy
   assert.equal(snapshot.pairs.length, 2);
   assert.equal(snapshot.pairByKey.get(snapshot.activePair).strategyConfig.edgeBps, 49);
   assert.equal(snapshot.trackedAssetIds.includes(LEGACY_OMFT_BTC_ASSET_ID), true);
+  assert.equal(snapshot.assetRegistry.get(CURRENT_USDC_ASSET_ID).chain, 'eth:100');
+  assert.equal(snapshot.trackedAssetIds.includes(CURRENT_USDC_ASSET_ID), false);
   assert.equal([...snapshot.makerPairKeys].some((pair) => pair.includes(LEGACY_OMFT_BTC_ASSET_ID)), false);
 });
 
+test('repo seed corrects legacy USDC Gnosis chain without inventory-enabling it', async () => {
+  const pool = createMemoryPool();
+  pool.assets.set(CURRENT_USDC_ASSET_ID, {
+    asset_id: CURRENT_USDC_ASSET_ID,
+    venue: 'near-intents',
+    symbol: 'USDC',
+    label: 'USDC',
+    decimals: 6,
+    blockchain: 'gnosis',
+    chain: 'gnosis',
+    contract_address: '0x2a22f9c3b484c3629090feed35f17ff8f88f76f0',
+    latest_price: '1',
+    price_updated_at: '2026-05-12T16:25:00.425Z',
+    supported: true,
+    retired_at: null,
+    enabled_for_inventory: false,
+    role: null,
+    withdraw_address: '',
+    raw_payload: { source: 'legacy_test_row' },
+    last_supported_at: '2026-05-12T16:25:00.425Z',
+    updated_at: '2026-05-12T16:25:00.425Z',
+  });
+
+  await seedTradingConfig(pool, { now: '2026-05-12T16:35:00.000Z' });
+  const snapshot = await loadTradingConfig(pool);
+  const usdc = snapshot.assetRegistry.get(CURRENT_USDC_ASSET_ID);
+
+  assert.equal(usdc.chain, 'eth:100');
+  assert.equal(usdc.enabledForInventory, false);
+});
+
 test('missing DB pair config fails closed', async () => {
   const snapshot = await loadTradingConfig(createMemoryPool());
 
@@ -536,7 +584,7 @@ function insertAsset(pool, params) {
     price_updated_at: priceUpdatedAt,
     supported: seed ? (previous?.supported || params[10]) : true,
     retired_at: null,
-    enabled_for_inventory: seed ? true : previous?.enabled_for_inventory === true,
+    enabled_for_inventory: seed ? previous?.enabled_for_inventory === true || params[11] === true : previous?.enabled_for_inventory === true,
     role: seed ? params[12] : previous?.role || null,
     withdraw_address: seed ? params[13] : previous?.withdraw_address || '',
     raw_payload: JSON.parse(seed ? params[14] : params[10]),