Add CLI application with database migration and entity generation commands

- Introduced a new CLI application in the `apps/cli` directory.
- Implemented commands for database migration and entity generation.
- Updated `Cargo.toml` files to include necessary dependencies.
- Enhanced the `justfile` to facilitate CLI command execution.
- Modified workspace configuration to include the new CLI application.

apps/cli/src/main.rs

@@ -0,0 +1,22 @@
+mod cmd;
+
+use clap::error::ErrorKind;
+
+#[tokio::main]
+async fn main() {
+    let mut command = cmd::get_command();
+    let help_output = format!("{}", command.render_help());
+    let matches = command
+        .try_get_matches()
+        .unwrap_or_else(|err| match err.kind() {
+            ErrorKind::DisplayHelp | ErrorKind::DisplayVersion => {
+                err.print().expect("Error writing Error");
+                std::process::exit(0);
+            }
+            _ => {
+                err.print().expect("Error writing Error");
+                std::process::exit(1);
+            }
+        });
+    cmd::execute(&matches, &help_output).await;
+}