Build mono with buck2

[MrBeanCpp]

#868

• There's still 1 error for mono build: can't find crate for vault
• Successfully build jupiter callisto common saturn ceres mercury taurus with buck2

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
mega	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 6, 2025 10:18am

PR Overview

This PR aims to improve the build and dependency configuration for building mono with buck2 while also streamlining LFS API calls and configuration file paths. Key changes include:

• Updates to third-party/Cargo.toml with new dependencies and feature flags.
• Adjustments in mono/Cargo.toml and mono/src/main.rs to remove shadow_rs build-time metadata.
• Modifications to file paths in include_str! macros and LFS API call signatures for consistency.

Reviewed Changes

File	Description
third-party/Cargo.toml	Added new dependencies and feature flags to support buck2 build.
mono/Cargo.toml	Removed shadow-rs build dependency and commented out related entries.
third-party/README.md	Added attention note for fixups.toml handling.
common/config.toml	Introduced a new config file redirecting to mega/config.toml.
mono/src/main.rs	Removed shadow_rs code, reflecting build metadata removal.
jupiter/src/storage/init.rs	Updated SQL file include path for sqlite initialization.
common/src/config.rs	Changed include_str! path to reference the new config file location.
mono/src/api/lfs/lfs_router.rs	Updated lfs_download_object call to pass an owned String.
ceres/src/lfs/handler.rs	Modified lfs_download_object signature for consistency.
mono/src/build.rs	Removed build script file and associated shadow_rs usage.

Copilot reviewed 99 out of 99 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (2)

common/src/config.rs:69

• Ensure that the updated relative path in the include_str! macro correctly resolves to the intended configuration file following the directory restructuring.

let default_config = include_str!("../config.toml");

ceres/src/lfs/handler.rs:366

• [nitpick] Consider whether the re-borrowing of 'oid' is necessary; if not needed for lifetime or borrowing reasons, you might simplify the code by using the parameter directly.

let oid = &oid;