feat(Common/Storage): Add bulk storage methods for state sync

Added `GetAllStorage` and `SetAllStorage` methods to the `StorageProvider` trait in `Common`. This change:

1. **Enables User Data Sync workflow** by allowing bulk retrieval and overwrite of entire storage state (global/workspace scope)
2. **Aligns with `Mountain`'s state management** where `AppState` will implement these for persistent storage operations
3. **Supports `Cocoon` extension host** by providing efficient state transfer for VS Code extension APIs
4. **Facilitates `Wind` UI services** for settings/profile synchronization features
5. **Defines DTOs using `Value` type** consistent with Land's serialization strategy

BREAKING CHANGE: All `StorageProvider` implementors (e.g. `Mountain`) must now provide implementations for the new bulk methods.

Author: NikolaRHristov

Source/Storage/StorageProvider.rs

@@ -43,4 +43,10 @@ pub trait StorageProvider: Environment + Send + Sync {
 		Key:String,
 		ValueToSet:Option<Value>,
 	) -> Result<(), CommonError>;
+
+	/// Retrieves the entire storage state for a given scope.
+	async fn GetAllStorage(&self, IsGlobalScope:bool) -> Result<Value, CommonError>;
+
+	/// Overwrites the entire storage state for a given scope with a new state.
+	async fn SetAllStorage(&self, IsGlobalScope:bool, FullState:Value) -> Result<(), CommonError>;
 }