feat: add corex-storage crate for unified storage abstraction

- Introduced corex-storage crate with support for local disk, S3-compatible, and Google Cloud Storage backends.
- Implemented StorageDriver trait for various storage backends.
- Added LocalFileStorage for local disk operations.
- Added S3Storage for S3-compatible object storage with multipart upload support.
- Added GcsStorage for Google Cloud Storage operations.
- Included error handling for storage operations.
- Added tests for each storage backend to ensure functionality.
- Created README.md for documentation and usage examples.
- Added Apache and MIT licenses for open-source compliance.

crates/mytheclipse-config/Cargo.toml

@@ -0,0 +1,42 @@
+[package]
+name = "corex-config"
+version = "1.2.0"
+edition = "2021"
+rust-version = "1.75"
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/asepharyana/mytheclipse"
+homepage = "https://github.com/asepharyana/mytheclipse"
+documentation = "https://docs.rs/corex-config"
+authors = ["asepharyana <superaseph@gmail.com>"]
+description = "Type-safe, dynamic configuration engine: load .env/YAML/JSON/TOML into typed structs with hot-reload and validation."
+readme = "README.md"
+keywords = ["config", "env", "yaml", "json", "hot-reload"]
+categories = ["config", "development-tools"]
+
+[features]
+default = ["env", "yaml", "toml", "hot-reload"]
+# Load .env files + environment variables.
+env = ["dep:dotenvy"]
+# Parse structured files. JSON support (`.json`) is always available since
+# `serde_json::Value` is also the loader's internal merge representation.
+yaml = ["dep:serde_yaml"]
+toml = ["dep:toml"]
+# Watch config files and hot-reload.
+hot-reload = ["dep:notify", "dep:tokio"]
+
+[dependencies]
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+tracing = "0.1"
+
+# Optional loaders
+dotenvy = { version = "0.15", optional = true }
+serde_yaml = { version = "0.9", optional = true }
+toml = { version = "0.8", optional = true }
+# Hot-reload file watching
+notify = { version = "6", optional = true }
+tokio = { version = "1.53", features = ["sync", "rt", "time"], optional = true }
+
+[dev-dependencies]
+tokio = { version = "1.53", features = ["full"] }
+tempfile = "3"