- refactored the custom cmd

Signed-off-by: naveensrinivasan <172697+naveensrinivasan@users.noreply.github.com>

Signed-off-by: naveensrinivasan <172697+naveensrinivasan@users.noreply.github.com>

…orage initialization**

- Remove dependency on `go.uber.org/fx` and associated dependency injection setup.
- Simplify `main.go` by removing `fx.App` and directly executing the root command.
- Modify `cmd/root/root.go`:
  - Rename `options` struct to `Options` to make it exportable.
  - Update `AddFlags` method to use exported fields.
  - Add `PersistentPreRun` function to start the pprof server if enabled.
  - Change `New` function signature to return `(*cobra.Command, error)` instead of just `*cobra.Command`.
- Modify `cmd/server/server.go`:
  - Add `StorageType` and `StorageAddr` fields to options.
  - Implement `ProvideStorage` method to initialize storage based on `StorageType`.
  - Update `Run` method to initialize storage via `ProvideStorage`.
  - Remove `storage` parameter from the `New` function.
  - Adjust `New` function accordingly.
- Update `go.mod` and `go.sum` to remove `fx` and related dependencies.
- Delete unused `storages` module and its tests.
- Move storage initialization logic into `cmd/server/server.go`.

This refactoring removes the usage of the `go.uber.org/fx` dependency injection framework, simplifying the application startup process. Storage initialization is now handled within the server command and can be configured via command-line flags. This change streamlines the application and reduces unnecessary complexity.

Signed-off-by: naveensrinivasan <172697+naveensrinivasan@users.noreply.github.com>

Signed-off-by: naveensrinivasan <172697+naveensrinivasan@users.noreply.github.com>

Signed-off-by: naveensrinivasan <172697+naveensrinivasan@users.noreply.github.com>

Signed-off-by: naveensrinivasan <172697+naveensrinivasan@users.noreply.github.com>

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>