feat: activity logs, gallery storage filter, and upload rate limits

Add per-user activity logs with storage backend tracking, gallery
storage filter, and IP/token upload rate limiting. Fix storage delete
modal flash, pin local backend in filter order, and link settings
version to GitHub releases.

server/utils/auto-delete.ts

@@ -91,7 +91,9 @@ export async function runAutoDeleteCleanup(): Promise<AutoDeleteResult> {
         originalName: image.originalName,
         size: image.size,
         contentType: image.contentType,
-        source: 'web'
+        source: 'web',
+        userId: image.userId ?? null,
+        backendId: image.backendId ?? null
       })
       deleted++
     } catch (error) {