Greptile Summary

This PR adds Atlas Cloud as a sponsor across the English, Chinese, and Japanese READMEs, along with four SVG logo assets (black and white variants of the full wordmark and logomark).

• All three READMEs reference only the black-fill SVG variants; the white-fill variants are added to the repository but never linked.
• No GitHub theme-aware image switching (#gh-light-mode-only / #gh-dark-mode-only) is used, so the black logos will be invisible to readers viewing the READMEs in GitHub dark mode.

Confidence Score: 4/5

Safe to merge for functional code, but the sponsor logos will not render correctly for GitHub dark-mode users.

The only black-fill SVGs are linked in all three READMEs without any theme-switching mechanism. GitHub dark-mode users will see blank space where the sponsor logos should appear. The white-fill variants were added but are not referenced anywhere, leaving them unused.

README.md, README.zh-CN.md, and README.ja-JP.md all have the same missing theme-aware image handling.

Important Files Changed

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[GitHub README render] --> B{User theme?}
    B -->|Light mode| C[Black logos visible ✅]
    B -->|Dark mode| D[Black logos on dark background ❌ invisible]

    E[White SVGs added to repo] --> F[Not linked in any README]
    F --> G[White logos never shown]

    H[Fix: use theme-aware fragments] --> I["img src=...-black.svg#gh-light-mode-only"]
    H --> J["img src=...-white.svg#gh-dark-mode-only"]

_{Reviews (3): Last reviewed commit: "docs: add Atlas Cloud sponsor section to..." | Re-trigger Greptile}