refactor yaak-cli phase 1 command architecture

crates-cli/yaak-cli/src/commands/workspace.rs

@@ -0,0 +1,19 @@
+use crate::cli::{WorkspaceArgs, WorkspaceCommands};
+use crate::context::CliContext;
+
+pub fn run(ctx: &CliContext, args: WorkspaceArgs) {
+    match args.command {
+        WorkspaceCommands::List => list(ctx),
+    }
+}
+
+fn list(ctx: &CliContext) {
+    let workspaces = ctx.db().list_workspaces().expect("Failed to list workspaces");
+    if workspaces.is_empty() {
+        println!("No workspaces found");
+    } else {
+        for workspace in workspaces {
+            println!("{} - {}", workspace.id, workspace.name);
+        }
+    }
+}