🦙 feat: Ollama Vision Support (#2643)

* refactor: checkVisionRequest, search availableModels for valid vision model instead of using default

* feat: install ollama-js, add typedefs

* feat: Ollama Vision Support

* ci: fix test

api/utils/deriveBaseURL.js

@@ -0,0 +1,28 @@
+const { logger } = require('~/config');
+
+/**
+ * Extracts the base URL from the provided URL.
+ * @param {string} fullURL - The full URL.
+ * @returns {string} The base URL.
+ */
+function deriveBaseURL(fullURL) {
+  try {
+    const parsedUrl = new URL(fullURL);
+    const protocol = parsedUrl.protocol;
+    const hostname = parsedUrl.hostname;
+    const port = parsedUrl.port;
+
+    // Check if the parsed URL components are meaningful
+    if (!protocol || !hostname) {
+      return fullURL;
+    }
+
+    // Reconstruct the base URL
+    return `${protocol}//${hostname}${port ? `:${port}` : ''}`;
+  } catch (error) {
+    logger.error('Failed to derive base URL', error);
+    return fullURL; // Return the original URL in case of any exception
+  }
+}
+
+module.exports = deriveBaseURL;