refactor(docker): optimize Docker build process and update configurations

- Replace direct Rust build with cargo-chef multi-stage build pattern
- Switch base image from debian:bookworm-slim to ubuntu:26.04
- Add .codegraph to .dockerignore and data to .gitignore
- Introduce Dockerfile.fast for faster builds without optimization
- Add comprehensive .env configuration file with cluster settings
- Create docker-compose.yaml for multi-node cluster setup
- Add cluster routing test case for distributed operations
- Remove unnecessary success status checks in repository maintenance
- Fix error handling in git command executions by properly propagating errors
- Add repository move protection to prevent self-destruct operations
- Simplify conditional logic in actor message validation
- Update remote pack client calls with proper error handling parameters

actor/message.rs

@@ -309,7 +309,7 @@ fn decode_strings(bytes: Vec<u8>) -> Vec<String> {
             }
         };
 
-        if len == 0 || end_offset > bytes.len() {
+        if end_offset > bytes.len() {
             tracing::warn!(
                 offset,
                 claimed_len = len,