## ADDED Requirements
### Requirement: Commercial Clip Capabilities
The system SHALL expose 12 customer-facing AI clip capabilities without showing underlying open-source component names to ordinary users.

#### Scenario: User chooses a clip capability
- **WHEN** the user opens AI 剪辑中心
- **THEN** the page presents AI精彩拆条, 主题与关键词, 问答提取, 文本剪辑, 说话人剪辑, 知识点与章节, 情绪与互动高光, 多段重组, 批量智能拆条, 转写与字幕, 音频剪辑, and 自定义AI剪辑 as selectable capabilities

### Requirement: Business Scene Templates
The system SHALL let users apply business-oriented scene templates before submitting a clip task.

#### Scenario: User applies a live commerce template
- **WHEN** the user selects a business scene such as 电商直播
- **THEN** the task payload includes the scene id, title, prompt, expected output, and relevant business fields

### Requirement: Digital-Human Polish Packs
The system SHALL provide commercial polish packs for digital-human and talking-head outputs.

#### Scenario: User chooses a polish pack
- **WHEN** the user selects 干净口播, 商业带货, 创始人IP, or 课程精修
- **THEN** the task payload includes the selected polish prompt and render packaging expectations

### Requirement: Landing-Ready Task Payload
The system SHALL submit structured runtime payloads that can be executed by local clip, transcription, and rendering services.

#### Scenario: User submits a configured clip job
- **WHEN** the user submits from the config step
- **THEN** the local task contains source media, capability definition, prompt, scene template, polish pack, business params, model route, local model status, and output options