fix(namespace): normalize paths before path operations on Windows

- Fix NamespaceGenerator extracting directory path before normalizing backslashes, causing namespace generation to fail on Windows (issue #130)
- Fix NamespaceResolver vendor path detection to work with backslash paths on Windows

Author: MehediDracula

src/core/NamespaceGenerator.ts

@@ -9,10 +9,8 @@ export class NamespaceGenerator {
     async generate(editor: vscode.TextEditor): Promise<void> {
         const currentUri = editor.document.uri;
         const currentFile = currentUri.fsPath;
-        const currentPath = currentFile.substring(0, currentFile.lastIndexOf('/'));
-
-        const normalizedCurrentPath = currentPath.replace(/\\/g, '/');
         const normalizedCurrentFile = currentFile.replace(/\\/g, '/');
+        const normalizedCurrentPath = normalizedCurrentFile.substring(0, normalizedCurrentFile.lastIndexOf('/'));
 
         const workspaceFolder = vscode.workspace.getWorkspaceFolder(currentUri);
         if (!workspaceFolder) {

src/core/NamespaceResolver.ts

@@ -13,7 +13,7 @@ export class NamespaceResolver {
         const cached = this.cache.lookup(className);
         if (cached.length > 0) {
             for (const entry of cached) {
-                const source = entry.uri.fsPath.includes('/vendor/') ? 'vendor' : 'project';
+                const source = entry.uri.fsPath.replace(/\\/g, '/').includes('/vendor/') ? 'vendor' : 'project';
                 results.push({ fqcn: entry.fqcn, source });
             }
         } else {
@@ -91,7 +91,7 @@ export class NamespaceResolver {
                     const fqcn = `${namespace}\\${className}`;
                     if (!seen.has(fqcn)) {
                         seen.add(fqcn);
-                        const source = file.fsPath.includes('/vendor/') ? 'vendor' : 'project';
+                        const source = file.fsPath.replace(/\\/g, '/').includes('/vendor/') ? 'vendor' : 'project';
                         results.push({ fqcn, source });
                     }
                 }