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

.env

@@ -0,0 +1,23 @@
+REPO_PREFIX_PATH=/home/zhenyi/RustroverProjects/gitks/data
+GITKS_HOST=0.0.0.0
+GITKS_PORT=50051
+GITKS_ADVERTISE_ADDR=http://gitks-node1:50051
+GITKS_METRICS_PORT=9100
+GITKS_DISK_CACHE_ENABLED=false
+GITKS_DISK_CACHE_MAX_AGE=300
+GITKS_PACK_CACHE_ENABLED=true
+GITKS_PACK_CACHE_BACKPRESSURE=true
+GITKS_RATE_LIMIT_MAX_CONCURRENT=100
+GITKS_HOOKS_ENABLED=true
+GITKS_HOOK_TIMEOUT=30
+GITKS_ALLOW_CUSTOM_HOOKS=true
+#GITKS_SERVER_HOOKS_DIR=/etc/gitks/hooks
+GITKS_HOOK_CALLBACK_ADDR=http://localhost:50052
+GITKS_ETCD_ENDPOINTS=http://localhost:2379
+GITKS_CLUSTER_PORT=4697
+GITKS_CLUSTER_COOKIE=gitks-default-cookie
+GITKS_LEASE_TTL=15
+GITKS_ETCD_CONNECT_TIMEOUT=5000
+GITKS_HEALTH_CHECK_INTERVAL=1
+GITKS_MAX_HEALTH_FAILURES=10
+STORAGE_NAME=default