Add web front-end and fix API issues

api/package.json

@@ -1,10 +1,11 @@
 {
-  "name": "book-test",
+  "name": "book-test api",
   "version": "1.0.0",
   "description": "",
   "main": "index.js",
   "scripts": {
     "test": "node --import tsx --test \"src/**/*.test.ts\"",
+    "start": "tsx src/index.ts",
     "db:migrate": "dotenv dbmate up"
   },
   "keywords": [],

api/src/category.router.ts

@@ -23,7 +23,7 @@ export function createCategoryRouter(repository: CategoryRepository): Router {
             }
 
             const flatRows = await repository.findAllDescendants(parentPath);
-            const nestedTree = buildCategoryTree(flatRows);
+            const nestedTree = flatRows.length > 0 ? buildCategoryTree(flatRows) : [];
 
             res.json({ success: true, data: nestedTree });
         } catch (error) {

api/src/dev-seed.ts

@@ -0,0 +1,26 @@
+// api/src/dev-seed.ts
+import { Pool } from 'pg';
+import { seedCategoryTable } from './test-seed.ts';
+import process from 'node:process';
+import { join } from 'node:path';
+
+// Load environmental variables manually
+try {
+    process.loadEnvFile(join(import.meta.dirname, '../.env'));
+} catch (e) { }
+
+const pool = new Pool({ connectionString: process.env.DATABASE_URL });
+
+async function run() {
+    console.log('🌱 Seeding local development database...');
+    try {
+        await seedCategoryTable(pool);
+        console.log('✅ Local database seeded successfully!');
+    } catch (error) {
+        console.error('❌ Seeding failed:', error);
+    } finally {
+        await pool.end();
+    }
+}
+
+run();

api/src/index.ts

@@ -2,13 +2,21 @@ import express from 'express';
 import { Pool } from 'pg';
 import { CategoryRepository } from './category.repository.ts';
 import { createCategoryRouter } from './category.router.ts';
+import { join } from 'node:path';
+import process from 'node:process';
+
+try {
+  process.loadEnvFile(join(import.meta.dirname, '../.env'));
+} catch (e) {
+  console.warn('⚠️ API Warning: Could not locate local .env file natively.');
+}
 
 const app = express();
 const port = process.env.API_PORT || 8300;
 
 // Initialize your database pool
 const pool = new Pool({
-  connectionString: process.env.DATABASE_URL
+  connectionString: process.env.DATABASE_URL || process.env.INTERNAL_PROD_DB_URL
 });
 
 app.use(express.json());