fix(token-aggregation): resolve TypeScript build errors

- token-mapping: use createRequire(proxmox package.json) and process.cwd(), drop import.meta to allow commonjs build
- Add routes/bridge.ts stub (status + metrics) so server.ts import resolves
- Add config/cross-chain-bridges.ts with BridgeConfig/BridgeLane and CHAIN_138_BRIDGES from env
- cross-chain-indexer: import BridgeLane, add explicit types for .find/.map callbacks, bridgeType fallback to b.type

Made-with: Cursor

services/token-aggregation/src/api/routes/bridge.ts

@@ -0,0 +1,26 @@
+/**
+ * Bridge API: cross-chain bridge status and metrics.
+ * GET /api/v1/bridge/status, /api/v1/bridge/metrics — stubbed or delegated to cross-chain report.
+ */
+
+import { Router, Request, Response } from 'express';
+
+const router: Router = Router();
+
+router.get('/status', (_req: Request, res: Response) => {
+  res.json({
+    ok: true,
+    bridges: [],
+    message: 'Bridge status: use /api/v1/report/cross-chain for volume/lanes.',
+  });
+});
+
+router.get('/metrics', (_req: Request, res: Response) => {
+  res.json({
+    ok: true,
+    lanes: [],
+    message: 'Bridge metrics: use /api/v1/report/cross-chain for aggregated data.',
+  });
+});
+
+export default router;

services/token-aggregation/src/api/routes/token-mapping.ts

@@ -6,17 +6,15 @@
 
 import { Router, Request, Response } from 'express';
 import path from 'path';
-import { fileURLToPath } from 'url';
 import { createRequire } from 'module';
 import { cacheMiddleware } from '../middleware/cache';
 
 const router: Router = Router();
-const require = createRequire(import.meta.url);
-const __dirname = path.dirname(fileURLToPath(import.meta.url));
 
-/** Resolve path to repo root (proxmox) from token-aggregation src/api/routes -> 5 levels up */
-const PROXMOX_ROOT = path.resolve(__dirname, '../../../../../');
+/** Repo root (proxmox): when run from token-aggregation cwd, 2 levels up to smom-dbis-138, 1 more to proxmox */
+const PROXMOX_ROOT = path.resolve(process.cwd(), '../../..');
 const LOADER_PATH = path.join(PROXMOX_ROOT, 'config', 'token-mapping-loader.cjs');
+const requireLoader = createRequire(path.join(PROXMOX_ROOT, 'package.json'));
 
 function loadMultichainLoader(): {
   getTokenMappingForPair: (from: number, to: number) => { tokens: unknown[]; addressMapFromTo: Record<string, string>; addressMapToFrom: Record<string, string> } | null;
@@ -24,7 +22,7 @@ function loadMultichainLoader(): {
   getMappedAddress: (from: number, to: number, addr: string) => string | undefined;
 } | null {
   try {
-    const loader = require(LOADER_PATH);
+    const loader = requireLoader(LOADER_PATH);
     if (loader?.getTokenMappingForPair && loader?.getAllMultichainPairs && loader?.getMappedAddress) {
       return loader;
     }