fix: require name field in TPMJS spec, add workflow permissions

Breaking change for TPMJS spec:
- Remove `exportName` field support from TpmjsToolDefinitionSchema
- Make `name` field required (replaces deprecated `exportName`)
- Update create-basic-tools to generate `name` field
- Update sync routes to use `name` from validated schema
- Add `permissions: contents: write` to Vercel registry sync workflow

Packages using the old `exportName` field must update to use `name`.

packages/tools/create-basic-tools/src/generators/package-json.ts

@@ -24,11 +24,8 @@ export function generatePackageJson(config: GeneratorConfig): string {
     tpmjs: {
       category: packageInfo.category,
       tools: tools.map((tool) => ({
-        exportName: tool.exportName,
+        name: tool.exportName,
         description: tool.description,
-        ...(tool.parameters && { parameters: tool.parameters }),
-        ...(tool.returns && { returns: tool.returns }),
-        ...(tool.aiAgent && { aiAgent: tool.aiAgent }),
       })),
       ...(tools.some((t) => t.env) && {
         env: tools.flatMap((t) => t.env || []),