Angles for DeepSeek Harness

`anglesvideo-dsh-plugin` is an open-source plugin for DeepSeek Harness that leverages the Angles Developer API to transform local software repository context into executable video concepts and rendered results. The plugin provides a one-stop toolchain covering repository analysis, concept generation, template selection, rendering previews, and final video output. During installation, an API key must be configured, and after setup, an automated video production workflow is performed through a series of tool calls (such as `inspect_repository`, `create_launch_concepts`, and `render_launch_video`). This plugin is a developer preview and includes privacy protection mechanisms at runtime to ensure that sensitive data is not uploaded.