Initial Commit

* Implements Select package.json and parse dependencies
* Implements Bun API to handle package Analysis
* Implements NPM Registry API handlers
* Analyze the cross dependencies between packages
* Implements loading NodeJS versions with search (inclusing LTS)
* Error handling
* Implements Report option to get higher infor about the dependencies
* Implements Upgrade command builder

src/lib/npm_registry.ts

@@ -0,0 +1,31 @@
+const API_BASE_URL = "https://registry.npmjs.org/";
+
+export async function getPackageDetails(packageName: string) {
+    const packageUrl = `${API_BASE_URL}${packageName}`;
+    return fetch(packageUrl)
+        .then(res => {
+            if (res.status === 404) {
+                return { 
+                    name: packageName, 
+                    error: "not-found",
+                    isPrivatePackage: true,
+                    message: "Package not found in npm registry - may be a private package"
+                };
+            }
+            if (!res.ok) {
+                return { 
+                    name: packageName, 
+                    error: "fetch-error",
+                    message: `Failed to fetch package (Status: ${res.status})`
+                };
+            }
+            return res.json();
+        }).catch(error => {
+            console.error(`Error fetching package ${packageName}:`, error);
+            return { 
+                name: packageName, 
+                error: "network-error",
+                message: error.message || "Network error while fetching package"
+            };
+        });
+}