fix(amazonq): Prevent adding same file twice for /doc and /dev

Author: avi-alpert

packages/amazonq/.changes/next-release/Bug Fix-037e19bd-95f5-4cdf-8408-6eb273ff7ebd.json

@@ -0,0 +1,4 @@
+{
+	"type": "Bug Fix",
+	"description": "Stuck on `Uploading code...` for /dev and /doc in some multi-root workspaces"
+}

packages/core/src/amazonq/util/files.ts

@@ -48,8 +48,14 @@ export async function prepareRepoData(
 
         let totalBytes = 0
         const ignoredExtensionMap = new Map<string, number>()
+        const addedFilePaths = new Set()
 
         for (const file of files) {
+            if (addedFilePaths.has(file.zipFilePath)) {
+                continue
+            }
+            addedFilePaths.add(file.zipFilePath)
+
             let fileSize
             try {
                 fileSize = (await fs.stat(file.fileUri)).size