Add CI workflow and apply rustfmt formatting

[intendednull]

Summary

This PR introduces a comprehensive CI/CD pipeline and applies consistent code formatting across the codebase using rustfmt.

Key Changes

CI/CD Pipeline

• New CI workflow (.github/workflows/ci.yml): Automated checks on push to main and pull requests
  • Format check using cargo fmt
  • Linting with clippy (all warnings treated as errors)
  • Unit tests via cargo test
  • WASM compatibility check for wasm32-unknown-unknown target
  • Caching of cargo registry and build artifacts for faster runs
• Updated deploy workflow (.github/workflows/deploy.yml): Now depends on CI passing before deployment

Code Formatting

Applied rustfmt formatting across multiple files to improve consistency:

• crates/storage/src/store.rs: Reformatted method chains and test code
• crates/worker/src/actors/network.rs: Improved line wrapping for match expressions and async operations
• crates/worker/tests/integration.rs: Consistent formatting of test assertions and message handling
• crates/client/src/lib.rs: Reformatted unbounded_send calls and function arguments
• crates/replay/src/main.rs & crates/storage/src/main.rs: Simplified tracing subscriber initialization
• crates/web/src/icons.rs: Simplified format string calls

Type Safety Improvements

• crates/common/src/worker_types.rs:
  • Wrapped WorkerResponse in Box for Response.payload to reduce enum size
  • Wrapped ServerState in Box for Snapshot.state to reduce enum size
  • Converted AllocationStrategy::Default impl to derive macro
• crates/replay/src/role.rs: Updated snapshot response to use boxed state
• crates/worker/tests/integration.rs: Updated test code to use boxed responses

Minor Refactoring

• crates/storage/src/role.rs: Improved formatting of match expression for history queries
• crates/client/src/worker_cache.rs: Better line wrapping for test helper calls
• crates/client/src/ops.rs: Simplified re-export statement

Implementation Details

The CI workflow uses dtolnay/rust-toolchain@stable for consistent Rust versions and implements separate caching strategies per job to optimize build times. The WASM check excludes relay, worker, replay, and storage crates that don't target WASM.

https://claude.ai/code/session_019cmP1WsNbaf7AYLH7Naxgm