fix(profiles): fix vscode profile generation (#1027)

* fix(profiles): fix vscode profile generation

- Add .instructions.md extension for VSCode Copilot instructions file.
- Add customReplacement to remove unsupported property `alwaysApply` from YAML front-matter in VSCode instructions files.
- Add missing property `targetExtension` to the base profile object to
  support the change to file extension.

* chore: run format

---------

Co-authored-by: Ralph Khreish <35776126+Crunchyman-ralph@users.noreply.github.com>

tests/integration/profiles/vscode-init-functionality.test.js

@@ -35,10 +35,10 @@ describe('VSCode Profile Initialization Functionality', () => {
 		expect(Array.isArray(vscodeProfile.globalReplacements)).toBe(true);
 	});
 
-	test('vscode.js configures .mdc to .md extension mapping', () => {
+	test('vscode.js configures .mdc to .instructions.md extension mapping', () => {
 		// Check that the profile object has the correct file mapping behavior (vscode converts to .md)
 		expect(vscodeProfile.fileMap['rules/cursor_rules.mdc']).toBe(
-			'vscode_rules.md'
+			'vscode_rules.instructions.md'
 		);
 	});