refactor: rename exportName to name across entire codebase

- Database: Migrate column export_name to name in tools table
- Prisma schema: Update Tool model to use name field
- Sync routes: Update keyword and changes sync to use name
- Railway executor: Update API endpoints to use name parameter
- API routes: Update all tool routes to use name field
- Web app: Update all pages and components
- Playground: Update tool loader and sidebar
- create-basic-tools: Update types and generators
- Scripts: Update sync and test scripts

Database migration was done via direct SQL:
  ALTER TABLE tools RENAME COLUMN export_name TO name;

The unique constraint remains on (package_id, name).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

scripts/backfill-health-checks.ts

@@ -27,7 +27,7 @@ async function main() {
     const tools = await prisma.tool.findMany({
       select: {
         id: true,
-        exportName: true,
+        name: true,
         package: {
           select: {
             npmPackageName: true,
@@ -97,7 +97,7 @@ async function main() {
         OR: [{ importHealth: 'BROKEN' }, { executionHealth: 'BROKEN' }],
       },
       select: {
-        exportName: true,
+        name: true,
         package: {
           select: {
             npmPackageName: true,
@@ -113,7 +113,7 @@ async function main() {
       console.log(`\n⚠️  Broken Tools (${brokenTools.length}):`);
       for (const tool of brokenTools) {
         console.log(
-          `   - ${tool.package.npmPackageName}/${tool.exportName} (Import: ${tool.importHealth}, Execution: ${tool.executionHealth})`
+          `   - ${tool.package.npmPackageName}/${tool.name} (Import: ${tool.importHealth}, Execution: ${tool.executionHealth})`
         );
         if (tool.healthCheckError) {
           console.log(`     Error: ${tool.healthCheckError.slice(0, 100)}...`);