ci: add clippy and unused lint config to Cargo.toml

Enable clippy all=warn and rust unused=warn in lint configuration.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: 2 people

Cargo.toml

@@ -4,12 +4,18 @@ version = "0.1.0"
 edition = "2024"
 description = "Pure Rust PAR2 verify and repair with SIMD-accelerated Galois field arithmetic"
 license = "MIT OR Apache-2.0"
-repository = "https://github.com/AusAgentSmith/Rust-PAR2"
+repository = "https://github.com/AusAgentSmith-org/Rust-PAR2"
 readme = "README.md"
 keywords = ["par2", "parity", "reed-solomon", "error-correction", "repair"]
 categories = ["algorithms", "filesystem"]
 rust-version = "1.85"
 
+[lints.clippy]
+all = { level = "warn", priority = -1 }
+
+[lints.rust]
+unused = "warn"
+
 [dependencies]
 md-5 = "0.10"
 crc32fast = "1"