File Access Router This is the routing entry point for filesystem paths, download endpoints, upload pipelines, and file preview handling. When to Use - Parameters, filenames, download endpoints, or import flows influence file paths - The target supports upload, preview, transcoding, extraction, sharing, download, or proxied file access - You need to decide whether this is path traversal/LFI or an upload-validation/processing-chain issue Skill Map - Path Traversal LFI: path traversal, file read, wrapper abuse, include chains - Upload Insecure Files: upload validation, storage paths, processing…