merge: resolve conflict in auth_factory.rs with origin/main

Keep custom Result type alias (replacing anyhow) from main while
preserving our removal of unused TokenServicePort import.

https://claude.ai/code/session_01EbAFEfyJNLRmJHmmYDX3Tt

Cargo.toml

@@ -29,7 +29,6 @@ uuid = { version = "1.21.0", features = ["v4", "serde"] }
 thiserror = "2.0.18"
 mockall = { version = "0.14.0", optional = true }
 sqlx = { version = "0.8.6", features = ["postgres", "runtime-tokio", "tls-rustls", "chrono", "uuid", "json"] }
-anyhow = "1.0.102"
 jsonwebtoken = { version = "10.3.0", features = ["rust_crypto"] }
 argon2 = "0.5.3"
 rand_core = { version = "0.6", features = ["std", "getrandom"] }
@@ -41,7 +40,7 @@ http-range-header = "0.4"
 image = { version = "0.25", default-features = false, features = ["jpeg", "png", "gif", "webp"] }
 md5 = "0.8.0"
 sha2 = "0.10.9"
-blake3 = "1.8.3"
+blake3 = { version = "1.8.3", features = ["rayon"] }
 hex = "0.4.3"
 http-body-util = "0.1.3"
 percent-encoding = "2.3"