CC-2051: Update Rust to 1.91 and Go to 1.25

[andy1li]

CC-2051: Update Rust to 1.91 and Go to 1.25

---

Note

Upgrade Go and Rust toolchains across starters, templates, and solutions, updating configs/docs and adding new build Dockerfiles; also enable .dbinfo output in the Rust solution.

• Toolchains
  • Go 1.25: Update go.mod, READMEs, codecrafters.yml, and starter_templates/go/config.yml; add dockerfiles/go-1.25.Dockerfile.
  • Rust 1.91 / Edition 2024: Update Cargo.toml (edition, rust-version), READMEs, codecrafters.yml, and starter_templates/rust/config.yml; add dockerfiles/rust-1.91.Dockerfile.
• Starters/Templates/Solutions
  • Sync versions across compiled_starters/*, starter_templates/*, and solutions/*.
• Rust code
  • Enable .dbinfo output (println!("database page size: {}", page_size);) in solutions/rust/01-dr6/code/src/main.rs.
  • Minor import reorder in src/main.rs files (anyhow::{Result, bail}).

^{Written by Cursor Bugbot for commit d886559. This will update automatically on new commits. Configure here.}

[linear]

CC-2051 Update Rust to 1.91 and Go to 1.25