feat: add gRPC services for User, Project, and Organization management

- Implemented UserService with methods for GetUser, CreateUser, UpdateUser, and DeleteUser.
- Implemented ProjectService with methods for GetProject, CreateProject, UpdateProject, and DeleteProject.
- Implemented OrganizationService with methods for GetOrganization, CreateOrganization, UpdateOrganization, and DeleteOrganization.
- Defined corresponding request and response message types for each service.
- Generated gRPC code from proto definitions for seamless integration.

1 files changed, 14 insertions, 0 deletions

diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..dbdfe3f
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,14 @@
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