refactor: Restructure project into multi-module setup and improve bundler

- Convert project to multi-module structure with 'bundler' subproject
- Extract bundler functionality into separate module with proper dependencies
- Improve IO state management with atomic reference for better synchronization
- Enhance bundler performance with parallel processing support
- Add CLI interface to bundler with various compression options
- Fix file handling issues in bundle reader/writer
- Update compression configuration and remove redundant options
- Improve region file synchronization with proper state management
- Add dictionary support for better compression ratios
- Refactor backup strategies to use new bundler API
- Update dependencies and build configuration
- Fix path resolution issues in bundle operations
`

bundler/build.gradle

@@ -0,0 +1,21 @@
+plugins {
+    id 'java'
+    id 'java-library'
+    id("io.freefair.lombok") version "9.0.0-rc2"
+    id("com.gradleup.shadow") version '9.1.0'
+}
+
+
+dependencies {
+    api 'com.github.luben:zstd-jni:1.5.7-4'
+    compileOnly 'io.netty:netty-all:4.2.6.Final'
+    api "io.ib67.kiwi:lang:1.2.3-SNAPSHOT"
+    api 'io.netty:netty-all:4.2.6.Final'
+}
+
+
+jar {
+    manifest {
+        attributes(Map.of("Main-Class", "io.ib67.sfcraft.bundler.Main"))
+    }
+}