CT11: regenerate the Go and TypeScript contracts from CT1 to CT9; each TypeScript contract as index.js with index.d.ts

Generated by seatgen (mesh-catalog, GEN1 and GEN2 on its worktree) from the
definitions of CT1 to CT9; module.json names the artifacts of the new seats
mesh-builds, mesh-pipeline-runner and git. seatgen -check is clean; every seat
package's generated fixture test passes.

Builds: design 47 G §341 (a TypeScript contract is emitted as index.js with
index.d.ts), §196, §339 (the generator refuses an unknown callers entry),
§260, §331.

Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ

contracts/ts/seats/nodebuildnode/package.json

@@ -1,13 +1,18 @@
 {
   "description": "The contract of the seat node-build-node, generated from its definition.",
   "exports": {
-    ".": "./src/index.ts"
+    ".": {
+      "default": "./index.js",
+      "types": "./index.d.ts"
+    }
   },
   "files": [
-    "src"
+    "index.js",
+    "index.d.ts",
+    "parts"
   ],
   "name": "@novox/mesh-delivery-contracts-node-build-node",
   "type": "module",
-  "types": "./src/index.ts",
+  "types": "./index.d.ts",
   "version": "0.1.0"
 }