Fixes #4869: Fix codebase indexing by correcting hidden directory filtering

The issue was in the isPathInIgnoredDirectory function where the '.*' pattern
was incorrectly matching the current directory '.' in relative paths, causing
ALL files to be ignored during codebase indexing.

Changes:
- Modified isPathInIgnoredDirectory to skip the current directory marker '.'
- Added length check to ensure '.*' pattern only matches directories with actual names
- Updated version to 3.21.0

This resolves the codebase indexing regression introduced in the directory
filtering changes.

Author: roomote

src/package.json

@@ -3,7 +3,7 @@
 	"displayName": "%extension.displayName%",
 	"description": "%extension.description%",
 	"publisher": "RooVeterinaryInc",
-	"version": "3.20.3",
+	"version": "3.21.0",
 	"icon": "assets/icons/icon.png",
 	"galleryBanner": {
 		"color": "#617A91",

src/services/glob/ignore-utils.ts

@@ -17,8 +17,12 @@ export function isPathInIgnoredDirectory(filePath: string): boolean {
 		// Skip empty parts (from leading or trailing slashes)
 		if (!part) continue
 
+		// Skip the current directory marker "."
+		if (part === ".") continue
+
 		// Handle the ".*" pattern for hidden directories
-		if (DIRS_TO_IGNORE.includes(".*") && part.startsWith(".") && part !== ".") {
+		// Only match directories that start with "." and have more characters
+		if (DIRS_TO_IGNORE.includes(".*") && part.startsWith(".") && part.length > 1) {
 			return true
 		}