feat: initial release v0.3.0

tests/unit/billing/mode.test.ts

@@ -0,0 +1,22 @@
+import { describe, expect, it } from 'vitest'
+import { getBillingMode, getBootBillingEnabled } from '@/lib/billing/mode'
+
+describe('billing/mode', () => {
+  it('falls back to OFF when env is missing', async () => {
+    delete process.env.BILLING_MODE
+    await expect(getBillingMode()).resolves.toBe('OFF')
+    expect(getBootBillingEnabled()).toBe(false)
+  })
+
+  it('normalizes lower-case env mode', async () => {
+    process.env.BILLING_MODE = 'enforce'
+    await expect(getBillingMode()).resolves.toBe('ENFORCE')
+    expect(getBootBillingEnabled()).toBe(true)
+  })
+
+  it('falls back to OFF when env mode is invalid', async () => {
+    process.env.BILLING_MODE = 'invalid'
+    await expect(getBillingMode()).resolves.toBe('OFF')
+    expect(getBootBillingEnabled()).toBe(false)
+  })
+})