Alma Image Generate CLI command, image generation supports OpenRouter

The current alma image command-line tool is tightly coupled with the Gemini API. Even when specifying OpenRouter models, the POST request host remains Google's host, and image extraction logic only supports Google (extracting URL links from responses).

OpenRouter's Google text-to-image model response includes a ` data:image/png;base64 ` string. Placing this directly in the output causes context overflow. After some troubleshooting, Alma has been fixed—it can now parse the string and use `send_file` to send it to the session for processing.

Base64 image extraction:
// Identify and process Base64 image data to prevent console output

if (responseBody.includes("data:image")) {

const base64Match = responseBody.match(/data:image\/([a-zA-Z]+);base64,([^"\s\)]+)/);

if (base64Match) {

const [_, ext, data] = base64Match;

const tempPath = path.join(os.tmpdir(), alma-img-${Date.now()}.${ext} );

fs.writeFileSync(tempPath, data, 'base64');

// Return only the path, do not print the raw JSON

return tempPath;

}

}