[cadence ead93afe88d2668e] Concatenating a relative target with the link folder introduces ENAMETOOLONG failures for otherwise resolvable stable links. #239

Raised at crates/baley/src/update/installation.rs:268 as low by openai, ruled survived.

Claim. Concatenating a relative target with the link folder introduces ENAMETOOLONG failures for otherwise resolvable stable links.

Failure scenario. On Linux, use a 4,040-byte absolute HOME composed of legal directory components and the relative target '../lib/crenshawdev/baley/versions/0.2.0/baley'. The stable pathname is 4,057 bytes and the version executable's pathname is 4,090 bytes, both within PATH_MAX. However, followed_path preserves '/bin/../', producing a 4,097-byte pathname that metadata rejects with ENAMETOOLONG. Previously, metadata(stable) succeeded because the kernel resolved the relative symlink from its containing directory without receiving this oversized concatenated pathname.

Filed by Cadence. Fingerprint ead93afe88d2668e over (file, claim).