feat(amazonq): add virtualFile -> URI util

plugins/amazonq/shared/jetbrains-community/src/software/aws/toolkits/jetbrains/services/amazonq/lsp/util/FileUriUtil.kt

@@ -0,0 +1,19 @@
+// Copyright 2025 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.jetbrains.services.amazonq.lsp.util
+
+import com.intellij.openapi.vfs.VfsUtil
+import com.intellij.openapi.vfs.VirtualFile
+import com.intellij.openapi.vfs.VfsUtilCore
+import java.net.URI
+
+object FileUriUtil {
+     fun toUri(virtualFile: VirtualFile): URI {
+        val file = VfsUtilCore.virtualToIoFile(virtualFile)
+        return VfsUtil.toUri(file)
+    }
+
+    fun toUriString(virtualFile: VirtualFile): String =
+        toUri(virtualFile).toString()
+}