Add minimax-video plugin for MiniMax-Hailuo video generation

[octo-patch]

Reason: The marketplace had no MiniMax-Hailuo video-generation plugin, so this adds text-to-video and image-to-video with create, query, and download across the global and China endpoints.

Summary

Adds a new minimax-video plugin that lets Claude Code generate videos with
MiniMax-Hailuo-2.3 and download the results. It wraps the asynchronous video
API — submit a task, poll status, retrieve the file — as four slash commands,
each usable against the global (api.minimax.io) or China (api.minimaxi.com) host.

Component Details

• Name: minimax-video
• Type: Plugin (slash commands)
• Commands:
  • /minimax-video:text-to-video — POST /v1/video_generation from a text prompt
  • /minimax-video:image-to-video — POST /v1/video_generation from a first-frame image
  • /minimax-video:query-video — GET /v1/query/video_generation to poll a task_id
  • /minimax-video:download-video — GET /v1/files/retrieve to resolve a file_id
• Default model MiniMax-Hailuo-2.3; also documents MiniMax-Hailuo-2.3-Fast,
  MiniMax-Hailuo-02, T2V-01-Director, T2V-01, I2V-01-Director, I2V-01-live, I2V-01.
• Auth via Authorization: Bearer $MINIMAX_API_KEY; success is base_resp.status_code == 0.

Files

• plugins/minimax-video/.claude-plugin/plugin.json
• plugins/minimax-video/commands/{text-to-video,image-to-video,query-video,download-video}.md
• plugins/minimax-video/README.md

Testing

• npm run validate — all validations passed
• npm run test:unit — JS pagination tests pass (the TypeScript test needs a newer Node's --experimental-strip-types and was not run in this environment)
• Command frontmatter validated against scripts/command-schema.json

[davepoon]

Thanks for this contribution — looks solid.

Reviewed for security, prompt injection, and fit with the repo:

• Command frontmatter and integration-sync category validate cleanly
• Auth uses $MINIMAX_API_KEY (no secrets in-repo)
• Endpoints/models match the MiniMax video-generation API flow (create → query → download)
• No remote instruction loading or prompt-injection patterns
• CI is green (schema validation + integration tests)

Merging.

[davepoon]

Merged — thanks for the MiniMax video plugin. Welcome to the collection.