Enable clippy lints to prevent lossy as casts

Enable clippy::cast_possible_truncation, clippy::cast_possible_wrap,
clippy::cast_sign_loss, and clippy::cast_precision_loss to make sure no
accidental overflowing, precision or sign loss occurs when casting
values using `as`.

Author: software-artificer

Cargo.toml

@@ -4,7 +4,12 @@ version = "0.0.0"
 edition = "2024"
 
 [dependencies]
-clap = { version = "4.5.54", default-features = false, features = ["derive", "help", "std", "usage"] }
+clap = { version = "4.5.54", default-features = false, features = [
+	"derive",
+	"help",
+	"std",
+	"usage",
+] }
 rayon = { version = "1.11.0", default-features = false }
 tempfile = { version = "3.24.0", default-features = false }
 thiserror = { version = "2.0.18", default-features = false, features = ["std"] }
@@ -13,3 +18,9 @@ walkdir = { version = "2.5.0", default-features = false }
 
 [dev-dependencies]
 prost = { version = "0.14.3", default-features = false }
+
+[lints.clippy]
+cast_possible_truncation = "deny"
+cast_possible_wrap = "deny"
+cast_sign_loss = "deny"
+cast_precision_loss = "deny"