feat(dlob): support two sources + per-user switch

- Add "source" column + composite PKs for DLOB tables\n- Filter public Hasura selects by X-Hasura-Dlob-Source\n- Run parallel workers for mevnode + dlob.drift.trade\n- Frontend proxy sets x-hasura-dlob-source from cookie and injects UI switch

kustomize/base/hasura/hasura-bootstrap.mjs

@@ -89,6 +89,8 @@ async function main() {
   console.log(`[hasura-bootstrap] HASURA_URL=${HASURA_URL}`);
   await waitForHasura();
 
+  const PUBLIC_DLOB_SOURCE_HEADER = 'X-Hasura-Dlob-Source';
+
   const apiTokensTable = { schema: 'public', name: 'api_tokens' };
   const source = 'default';
 
@@ -187,7 +189,7 @@ async function main() {
     'updated_at',
   ]);
 
-  const ensureDlobTable = async (table, columns) => {
+  const ensureDlobTable = async (table, columns, { publicFilter } = {}) => {
     await metadataIgnore({ type: 'pg_untrack_table', args: { source, table } });
     await metadata({ type: 'pg_track_table', args: { source, table } });
 
@@ -200,7 +202,7 @@ async function main() {
         role: 'public',
         permission: {
           columns,
-          filter: {},
+          filter: publicFilter || {},
         },
       },
     });
@@ -236,7 +238,7 @@ async function main() {
     });
   };
 
-  async function ensurePublicSelectTable(table, columns) {
+  async function ensurePublicSelectTable(table, columns, { publicFilter } = {}) {
     await metadataIgnore({ type: 'pg_untrack_table', args: { source, table } });
     await metadata({ type: 'pg_track_table', args: { source, table } });
 
@@ -249,7 +251,7 @@ async function main() {
         role: 'public',
         permission: {
           columns,
-          filter: {},
+          filter: publicFilter || {},
         },
       },
     });
@@ -259,7 +261,10 @@ async function main() {
     await metadataIgnore({ type: 'pg_drop_update_permission', args: { source, table, role: 'ingestor' } });
   }
 
+  const dlobPublicFilter = { source: { _eq: PUBLIC_DLOB_SOURCE_HEADER } };
+
   await ensureDlobTable(dlobL2LatestTable, [
+    'source',
     'market_name',
     'market_type',
     'market_index',
@@ -273,9 +278,10 @@ async function main() {
     'asks',
     'raw',
     'updated_at',
-  ]);
+  ], { publicFilter: dlobPublicFilter });
 
   await ensureDlobTable(dlobStatsLatestTable, [
+    'source',
     'market_name',
     'market_type',
     'market_index',
@@ -296,9 +302,10 @@ async function main() {
     'imbalance',
     'raw',
     'updated_at',
-  ]);
+  ], { publicFilter: dlobPublicFilter });
 
   await ensurePublicSelectTable(dlobDepthBpsLatestTable, [
+    'source',
     'market_name',
     'band_bps',
     'market_type',
@@ -315,9 +322,10 @@ async function main() {
     'imbalance',
     'raw',
     'updated_at',
-  ]);
+  ], { publicFilter: dlobPublicFilter });
 
   await ensurePublicSelectTable(dlobSlippageLatestTable, [
+    'source',
     'market_name',
     'side',
     'size_usd',
@@ -337,9 +345,10 @@ async function main() {
     'fill_pct',
     'raw',
     'updated_at',
-  ]);
+  ], { publicFilter: dlobPublicFilter });
 
   await ensurePublicSelectTable(dlobSlippageLatestV2Table, [
+    'source',
     'market_name',
     'side',
     'size_usd',
@@ -359,11 +368,12 @@ async function main() {
     'fill_pct',
     'raw',
     'updated_at',
-  ]);
+  ], { publicFilter: dlobPublicFilter });
 
   await ensurePublicSelectTable(dlobStatsTsTable, [
     'ts',
     'id',
+    'source',
     'market_name',
     'market_type',
     'market_index',
@@ -383,11 +393,12 @@ async function main() {
     'depth_ask_usd',
     'imbalance',
     'raw',
-  ]);
+  ], { publicFilter: dlobPublicFilter });
 
   await ensurePublicSelectTable(dlobDepthBpsTsTable, [
     'ts',
     'id',
+    'source',
     'market_name',
     'band_bps',
     'market_type',
@@ -403,11 +414,12 @@ async function main() {
     'ask_usd',
     'imbalance',
     'raw',
-  ]);
+  ], { publicFilter: dlobPublicFilter });
 
   await ensurePublicSelectTable(dlobSlippageTsTable, [
     'ts',
     'id',
+    'source',
     'market_name',
     'side',
     'size_usd',
@@ -424,11 +436,12 @@ async function main() {
     'levels_consumed',
     'fill_pct',
     'raw',
-  ]);
+  ], { publicFilter: dlobPublicFilter });
 
   await ensurePublicSelectTable(dlobSlippageTsV2Table, [
     'ts',
     'id',
+    'source',
     'market_name',
     'side',
     'size_usd',
@@ -445,7 +458,7 @@ async function main() {
     'levels_consumed',
     'fill_pct',
     'raw',
-  ]);
+  ], { publicFilter: dlobPublicFilter });
 
   // Return table type for candle functions (needed for Hasura to track the function).
   await metadataIgnore({ type: 'pg_track_table', args: { source, table: candlesReturnTable } });