feat: add Husky hooks and fix provider tutorial UI/logic

- Add Husky pre-commit and pre-push hooks for linting, type checking, and build validation
- Fix visual hierarchy bug in the provider onboarding tutorial
- Remove feedback modal
- Move MinIO bucket creation logic to before app startup
- Wire MiniMax audio through voice generation pipeline
- Fix scene insertion issues
- Fix portal tutorial modal and harden panel variant task flow

tests/unit/novel-promotion/insert-panel-user-input.test.ts

@@ -0,0 +1,26 @@
+import { describe, expect, it } from 'vitest'
+import { resolveInsertPanelUserInput } from '@/lib/novel-promotion/insert-panel'
+
+describe('insert panel user input normalization', () => {
+  it('uses localized default instruction when AI analyze sends empty input', () => {
+    expect(resolveInsertPanelUserInput({ userInput: '' }, 'zh')).toBe(
+      '请根据前后镜头自动分析并插入一个自然衔接的新分镜。',
+    )
+    expect(resolveInsertPanelUserInput({ userInput: '   ' }, 'en')).toBe(
+      'Automatically analyze the surrounding panels and insert a naturally connected new panel.',
+    )
+  })
+
+  it('prefers explicit user input over fallback prompt or default', () => {
+    expect(resolveInsertPanelUserInput({
+      userInput: '  添加一个特写反应镜头  ',
+      prompt: 'unused prompt',
+    }, 'zh')).toBe('添加一个特写反应镜头')
+  })
+
+  it('falls back to prompt when userInput is missing', () => {
+    expect(resolveInsertPanelUserInput({
+      prompt: '  Insert a pause beat between these panels.  ',
+    }, 'en')).toBe('Insert a pause beat between these panels.')
+  })
+})