docs: add living interfaces dashboard article

[nicovaleops]

Closes #8

Summary

• Adds an article on moving from static dashboards to living, AI-generated interfaces.
• Covers why fixed dashboards break down for exploratory analysis and how OpenUI-style rendering can preserve context, structure, and user actionability.
• Keeps the piece product/developer-focused with practical examples and no unsupported benchmark claims.

Validation

• Word count checked: 1,364 words.
• git diff --check passed.
• Public-copy scan passed for private/internal terms.