chore(lite): install aws-lc-rs as default crypto provider for rustls

[shikhar]

No description provided.

[greptile-apps]

Greptile Overview

Greptile Summary

This PR adds explicit initialization of the aws-lc-rs crypto provider for rustls in both the CLI and lite server binaries. Both binaries now call install_rustls_crypto_provider() at startup to configure aws-lc-rs as the default cryptographic backend.

Changes:

• Added rustls dependency with aws-lc-rs feature to workspace and both cli and lite crates
• Added install_rustls_crypto_provider() function in cli/src/main.rs and lite/src/bin/server.rs
• Both functions are called early in main() before other initialization

Analysis:
The implementation is straightforward and follows common rustls patterns. Both binaries already use rustls indirectly through axum-server with the tls-rustls feature, so this change ensures aws-lc-rs is explicitly chosen as the crypto provider. Since each function is only called once per binary execution in main(), the .expect() on install_default() is safe and will not cause issues.

Confidence Score: 5/5

• This PR is safe to merge with no identified issues
• The changes are minimal, well-contained, and follow established patterns for initializing rustls crypto providers. The implementation is consistent across both binaries, and the early initialization in main() ensures no conflicts. No breaking changes or edge cases identified.
• No files require special attention

Important Files Changed

Filename	Overview
cli/src/main.rs	Added install_rustls_crypto_provider() function to install aws-lc-rs as default crypto provider at startup
lite/src/bin/server.rs	Added install_rustls_crypto_provider() function to install aws-lc-rs as default crypto provider at startup
cli/Cargo.toml	Added rustls dependency with aws-lc-rs feature enabled
lite/Cargo.toml	Added rustls dependency with aws-lc-rs feature enabled

Sequence Diagram

sequenceDiagram
    participant Main as main()
    participant InstallFn as install_rustls_crypto_provider()
    participant RustlsCrypto as rustls::crypto::aws_lc_rs
    participant RustlsGlobal as rustls global state
    
    Main->>InstallFn: call at startup
    InstallFn->>RustlsCrypto: default_provider()
    RustlsCrypto-->>InstallFn: CryptoProvider instance
    InstallFn->>RustlsGlobal: install_default()
    alt Provider not yet installed
        RustlsGlobal-->>InstallFn: Ok(())
        InstallFn-->>Main: success
    else Provider already installed
        RustlsGlobal-->>InstallFn: Err(...)
        InstallFn->>InstallFn: panic via .expect()
    end
    Main->>Main: continue with app initialization

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