Fix recursive clean|clobber failures and orphaned build artifacts in Tests/Manual

- Update clean and clobber targets in Tests/Manual/Jakefile to enforce -mindepth 2 -maxdepth 2 traversal. This accurately purges subsidiary Build directories and Frameworks symlinks without triggering subjake dependency cycles.

- Inject explicit clean and clobber overrides into all 150+ subsidiary application Jakefiles. This forces local execution to wipe the top-level Build directory, bypassing applicationtask's default behavior of only targeting configuration-specific intermediate paths.

- Harmonizes artifact sweeping across both root-level orchestration and local leaf-level execution.

Tests/Manual/CPButtonBarTest/Jakefile

@@ -79,3 +79,13 @@ task ("deploy", ["release"], function()
     cp.execSync(["press", "-f", path.join("Build", "Release", "CPBrowserTest"), path.join("Build", "Deployment", "CPBrowserTest")].join(" "), { stdio: "inherit" });
     printResults("Deployment")
 });
+
+task ("clean", function()
+{
+    cp.execSync("rm -rf Build", { stdio: "inherit" });
+});
+
+task ("clobber", ["clean"], function()
+{
+    cp.execSync("rm -rf Frameworks", { stdio: "inherit" });
+});