fix: wrong filter fixed

worker/src/jobs/download-gtfs.ts

@@ -81,7 +81,7 @@ function rawMarkerPath(url: string): string { return `${rawDir(url)}/.source`; }
  * different output from the same source + bbox. Forces a re-filter on the
  * existing raw data without re-downloading.
  */
-const FILTER_VERSION = 2;
+const FILTER_VERSION = 3;
 
 interface RawMarker   { source: string }
 interface CityMarker  { source: string; bbox: [number, number, number, number]; filterVersion: number }
@@ -369,8 +369,30 @@ async function filterGtfsForCity(
     }
   }
 
-  // ── Step 5: filter routes, calendar, calendar_dates ────────────────────────
+  // ── Step 5: filter routes, calendar, calendar_dates; copy agency/feed_info ──
+  // Collect agency IDs from the filtered routes so we can filter agency.txt.
+  const validAgencyIds = new Set<string>();
+  {
+    const src = path.join(rawDir, "routes.txt");
+    if (existsSync(src)) {
+      const lines = readFileSync(src, "utf8").split(/\r?\n/).filter((l) => l.trim());
+      if (lines.length >= 2) {
+        const idx = colIndex(lines[0]);
+        const routeIdCol  = idx.get("route_id")  ?? -1;
+        const agencyIdCol = idx.get("agency_id") ?? -1;
+        for (let i = 1; i < lines.length; i++) {
+          const fields = splitCsv(lines[i]);
+          if (validRouteIds.has(fields[routeIdCol] ?? "")) {
+            const aid = fields[agencyIdCol] ?? "";
+            if (aid) validAgencyIds.add(aid);
+          }
+        }
+      }
+    }
+  }
+
   for (const [file, idCol, validIds] of [
+    ["agency.txt",         "agency_id",  validAgencyIds],
     ["routes.txt",         "route_id",   validRouteIds],
     ["calendar.txt",       "service_id", validServiceIds],
     ["calendar_dates.txt", "service_id", validServiceIds],
@@ -390,6 +412,12 @@ async function filterGtfsForCity(
     writeFileSync(dest, out.join("\n") + "\n");
   }
 
+  // ── Step 5b: copy feed_info.txt verbatim (not filterable, Valhalla may need it) ──
+  {
+    const src = path.join(rawDir, "feed_info.txt");
+    if (existsSync(src)) copyFileSync(src, path.join(destDir, "feed_info.txt"));
+  }
+
   // ── Step 6: shapes.txt (large — stream-filter) ─────────────────────────────
   if (validShapeIds.size > 0) {
     await filterLargeCsv(