docs: prepare design partner outreach sprint

[bymilon]

Summary

• define a seven-day design-partner outreach sprint
• add qualification rules and platform-ready outreach scripts
• record the first aggregate prospect research batch
• add native X Article and LinkedIn drafts about OpenAPI contract drift in AI coding agent teams

Scope

Documentation and sales operations only. No product code, runtime behavior, infrastructure, customer data, or deployment changes.

Validation

• repository content punctuation scan passed
• git diff whitespace check passed
• prospect identities remain outside Git
• official OpenAPI and GitHub sources are linked in the article

Rollback

Revert this documentation-only pull request.