Refactor to make full file list completely non-reactive because pinia persistence was causing long delays especially while searching when there were a lot of files. Implement better ghosts that do not alter the file list.

frontend/src/components/UploadButton.vue

@@ -10,6 +10,7 @@
 <script setup lang="ts">
 import { connect, uploadUrl } from '@/repositories/WS';
 import { useMainStore } from '@/stores/main'
+import { getDocuments } from '@/stores/documentStore'
 import { Doc } from '@/repositories/Document'
 import { collator } from '@/utils';
 import { onMounted, onUnmounted, reactive, ref } from 'vue'
@@ -98,7 +99,12 @@ const uploadCloudFiles = (files: CloudFile[]) => {
   files.sort((a, b) => collator.compare(a.cloudName, b.cloudName))
   // Optimistic update: ghost folders and files
   const now = Math.floor(Date.now() / 1000)
-  const byPath = store.docsByPath
+  const docs = getDocuments()
+  const byPath = new Map(docs.map(d => [d.loc ? `${d.loc}/${d.name}` : d.name, d]))
+  // Also check existing ghosts
+  for (const g of store.ghosts) {
+    byPath.set(g.loc ? `${g.loc}/${g.name}` : g.name, g)
+  }
   const added = new Set<string>()
   for (const f of files) {
     const lastSlash = f.cloudName.lastIndexOf('/')
@@ -109,14 +115,13 @@ const uploadCloudFiles = (files: CloudFile[]) => {
     for (let i = 0; i < parts.length; i++) {
       const folderPath = parts.slice(0, i + 1).join('/')
       if (folderPath && !byPath.has(folderPath) && !added.has(folderPath)) {
-        store.document.push(new Doc({ loc: parts.slice(0, i).join('/'), name: parts[i], key: crypto.randomUUID(), size: 0, mtime: now, dir: true, ghost: true }))
+        store.addGhost(new Doc({ loc: parts.slice(0, i).join('/'), name: parts[i], key: crypto.randomUUID(), size: 0, mtime: now, dir: true }))
         added.add(folderPath)
       }
     }
-    // Ghost file or update existing
+    // Ghost file or update existing (overwrite case doesn't need ghost, file already visible)
     const existing = byPath.get(f.cloudName)
-    if (existing) { existing.size = f.file.size; existing.mtime = now; existing.ghost = true }
-    else store.document.push(new Doc({ loc, name, key: crypto.randomUUID(), size: f.file.size, mtime: now, dir: false, ghost: true }))
+    if (!existing) store.addGhost(new Doc({ loc, name, key: crypto.randomUUID(), size: f.file.size, mtime: now, dir: false }))
   }
   // @ts-ignore
   upqueue = [...upqueue, ...files]