feat: package Pi extensions as Bun workspaces

extensions/_workflows/artifacts.test.ts

@@ -58,7 +58,7 @@ test("artifact transcript keeps the initial prompt, marker, and newest entries",
 });
 
 test("live artifact persistence includes current agents and transcripts", () => {
-  const directory = mkdtempSync(join(tmpdir(), "pi-workflow-artifacts-"));
+  const directory = mkdtempSync(join(tmpdir(), "workflow-artifacts-"));
   try {
     const details = workflowDetails();
     details.agents.push({

extensions/_workflows/sandbox-child.cjs

@@ -226,7 +226,7 @@ function run(source, argsJson) {
     };
 
     const context = vm.createContext(sandbox, {
-      name: "pi-workflow",
+      name: "workflow",
       codeGeneration: { strings: false, wasm: false },
     });
     new vm.Script(BOOTSTRAP, {

extensions/_workflows/serialization.test.ts

@@ -27,7 +27,7 @@ test("safeStringify handles cycles, bigint, depth, and size", () => {
 });
 
 test("atomic writes leave complete readable content", () => {
-  const directory = mkdtempSync(join(tmpdir(), "pi-workflow-test-"));
+  const directory = mkdtempSync(join(tmpdir(), "workflow-test-"));
   try {
     const file = join(directory, "artifact.json");
     writeFileAtomic(file, '{"value":1}');