feat: config loading and sqlite schema

server/test/config.test.ts

@@ -0,0 +1,46 @@
+import { describe, it, expect } from 'vitest'
+import { mkdtempSync, rmSync, readFileSync, existsSync } from 'node:fs'
+import { tmpdir } from 'node:os'
+import path from 'node:path'
+import { loadConfig } from '../src/config.js'
+
+function tempDir(): string {
+  return mkdtempSync(path.join(tmpdir(), 'rs-config-'))
+}
+
+describe('loadConfig', () => {
+  it('creates data + artwork dirs and returns paths', () => {
+    const dir = tempDir()
+    try {
+      const cfg = loadConfig({ DATA_DIR: dir })
+      expect(cfg.dataDir).toBe(dir)
+      expect(cfg.dbPath).toBe(path.join(dir, 'record-shop.db'))
+      expect(cfg.port).toBe(3000)
+      expect(existsSync(path.join(dir, 'artwork-cache'))).toBe(true)
+      expect(cfg.sessionSecret).toMatch(/^[0-9a-f]{64}$/)
+    } finally {
+      rmSync(dir, { recursive: true, force: true })
+    }
+  })
+
+  it('persists and reuses the session secret', () => {
+    const dir = tempDir()
+    try {
+      const a = loadConfig({ DATA_DIR: dir })
+      const b = loadConfig({ DATA_DIR: dir })
+      expect(a.sessionSecret).toBe(b.sessionSecret)
+      expect(readFileSync(path.join(dir, 'session-secret'), 'utf8')).toBe(a.sessionSecret)
+    } finally {
+      rmSync(dir, { recursive: true, force: true })
+    }
+  })
+
+  it('honours PORT', () => {
+    const dir = tempDir()
+    try {
+      expect(loadConfig({ DATA_DIR: dir, PORT: '8080' }).port).toBe(8080)
+    } finally {
+      rmSync(dir, { recursive: true, force: true })
+    }
+  })
+})