Prompt Optimizer v2.10.2

Summary

• Clarifies the relationship between Prompt Optimizer, favorites, and Prompt Garden across the public site and MkDocs documentation.
• Adds a bilingual Prompt Garden image-workflow tutorial with concrete screenshots from import through refinement.
• Fixes smart variable generation so optional prompt-asset variables can still be filled and applied correctly.

Highlights

• Prompt Garden documentation is now easier to follow for image prompt workflows, while the product positioning separates optimization, favorites, and external prompt-library discovery more clearly.

Product Updates

Web

• Refreshes the project homepage and documentation navigation so Prompt Optimizer remains the primary workspace product and Prompt Garden is presented as an external prompt-library source.
• Adds the bilingual image-prompt-garden-nb151 tutorial with screenshots covering Prompt Garden discovery, import-code handoff, smart variable fill, and final image comparison.

Core/Infra

• Keeps MkDocs English, Chinese, and development navigation aligned with the new Prompt Garden image tutorial.

Fixes

• Optional prompt-asset variables are now preserved through smart variable generation and external workspace application instead of being skipped by required-variable-only handling.

Breaking Changes / Upgrade Notes

• None.

Developer Notes

• The release range is v2.10.1..920123df, intentionally ending at the May 6 morning fix commit before later unfinished enhancement work.
• Variable generation and workspace-apply tests now cover optional prompt asset variables.

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