feat: Add zinit_client package to workspace

- Add `zinit_client` package to the workspace, enabling its use
  in the SAL monorepo.  This allows for better organization and
  dependency management.
- Update `MONOREPO_CONVERSION_PLAN.md` to reflect the addition
  of `zinit_client` and its status.  This ensures the conversion
  plan stays up-to-date.
- Move `src/zinit_client/` directory to `zinit_client/` for better
   organization.  This improves the overall structure of the
   project.
- Update references to `zinit_client` to use the new path.  This
  ensures the codebase correctly links to the `zinit_client`
  package.

Cargo.toml

@@ -11,7 +11,7 @@ categories = ["os", "filesystem", "api-bindings"]
 readme = "README.md"
 
 [workspace]
-members = [".", "vault", "git", "redisclient", "mycelium", "text", "os", "net"]
+members = [".", "vault", "git", "redisclient", "mycelium", "text", "os", "net", "zinit_client"]
 
 [dependencies]
 hex = "0.4"
@@ -55,7 +55,6 @@ tokio-test = "0.4.4"
 uuid = { version = "1.16.0", features = ["v4"] }
 reqwest = { version = "0.12.15", features = ["json"] }
 urlencoding = "2.1.3"
-zinit-client = "0.3.0"
 russh = "0.42.0"
 russh-keys = "0.42.0"
 async-trait = "0.1.81"
@@ -66,6 +65,7 @@ sal-mycelium = { path = "mycelium" }
 sal-text = { path = "text" }
 sal-os = { path = "os" }
 sal-net = { path = "net" }
+sal-zinit-client = { path = "zinit_client" }
 
 # Optional features for specific OS functionality
 [target.'cfg(unix)'.dependencies]