feat(jobs): purge file binaries when a job is delivered, keep metadata

Active scan + image traffic was going to bloat Storage fast — every
delivered case has tens of MB of STL hanging around forever. Now closing
a case via 'Teslim Aldım' fires a background archive sweep that deletes
the binary from the bucket but keeps the job_files row, so audit
('kim, ne, ne zaman yükledi') is preserved.

  - DB: job_files.archivedAt datetime (nullable).
  - archiveJobFiles(jobId) (lib/appwrite/job-file-archive.ts):
    lists rows, storage.deleteFile each, stamps archivedAt on the row.
    All in try/catch so partial Storage failures don't roll back the
    'delivered' transition.
  - markDeliveredAction fires it as 'void archiveJobFiles(jobId)' — same
    fire-and-forget pattern as audit/notifications/finance sync.

UI / API
  - Job detail file row dims to 60% opacity, shows 'Arşivlendi
    {tarih}' inline, and disables both the download dialog trigger and
    the STL viewer button.
  - /api/jobs/[jobId]/files/[fileId]/download returns 410 Gone with a
    Turkish message when archivedAt is set — direct-URL hot links can't
    fish the file back either.

src/app/(dashboard)/jobs/[jobId]/components/job-files-panel.tsx

@@ -254,7 +254,8 @@ function FileRow({ file }: { file: JobFileWithUrl }) {
   const [open, setOpen] = useState(false);
   const [downloadOpen, setDownloadOpen] = useState(false);
   const [viewerOpen, setViewerOpen] = useState(false);
-  const isViewable = VIEWABLE_RE.test(file.name);
+  const isArchived = Boolean(file.archivedAt);
+  const isViewable = !isArchived && VIEWABLE_RE.test(file.name);
 
   useEffect(() => {
     if (state.ok) {
@@ -281,12 +282,20 @@ function FileRow({ file }: { file: JobFileWithUrl }) {
   }
 
   return (
-    <li className="flex items-center gap-3 px-3 py-2">
+    <li className={`flex items-center gap-3 px-3 py-2 ${isArchived ? "opacity-60" : ""}`}>
       <span className="text-muted-foreground">{kindIcon(file.kind)}</span>
       <div className="flex-1 min-w-0">
         <p className="truncate text-sm font-medium">{file.name}</p>
         <p className="text-muted-foreground text-xs">
           {JOB_FILE_KIND_LABELS[file.kind] ?? file.kind} · {formatSize(file.size)}
+          {isArchived && (
+            <>
+              {" · "}
+              <span className="text-amber-600 dark:text-amber-400">
+                Arşivlendi {new Date(file.archivedAt!).toLocaleDateString("tr-TR")}
+              </span>
+            </>
+          )}
         </p>
       </div>
       <Badge variant="outline" className="hidden sm:inline-flex">
@@ -315,7 +324,13 @@ function FileRow({ file }: { file: JobFileWithUrl }) {
         </Dialog>
       )}
       <Dialog open={downloadOpen} onOpenChange={setDownloadOpen}>
-        <Button size="sm" variant="outline" onClick={() => setDownloadOpen(true)}>
+        <Button
+          size="sm"
+          variant="outline"
+          onClick={() => setDownloadOpen(true)}
+          disabled={isArchived}
+          title={isArchived ? "Bu dosya arşivlendi; indirilebilir kopyası yok." : undefined}
+        >
           <Download className="size-4" />
         </Button>
         <DialogContent>