refactor: remove legacy symlink migration code

Remove migrateStorageIfNeeded() which created symlinks from
~/.uncaged/workflow → ~/.uwf and ~/.uncaged/json-cas → ~/.ocas.

This was temporary migration support. Users who still have old paths
can run a one-time copy manually.

Zero 'uncaged' references remain in active codebase.

packages/cli/src/__tests__/store-storage-root.test.ts

@@ -1,13 +1,7 @@
 import { afterEach, beforeEach, describe, expect, test } from "bun:test";
-import { lstat, mkdir, rm, writeFile } from "node:fs/promises";
 import { homedir } from "node:os";
 import { join } from "node:path";
-import {
-  getDefaultStorageRoot,
-  getGlobalCasDir,
-  migrateStorageIfNeeded,
-  resolveStorageRoot,
-} from "../store.js";
+import { getDefaultStorageRoot, getGlobalCasDir, resolveStorageRoot } from "../store.js";
 
 describe("Storage root resolution", () => {
   const envKeys = ["UWF_STORAGE_ROOT", "WORKFLOW_STORAGE_ROOT", "OCAS_DIR"] as const;
@@ -55,48 +49,3 @@ describe("Storage root resolution", () => {
     expect(getGlobalCasDir()).toBe("/tmp/ocas-primary");
   });
 });
-
-describe("migrateStorageIfNeeded", () => {
-  let fakeHome: string;
-
-  beforeEach(async () => {
-    fakeHome = join(
-      homedir(),
-      `.uwf-migrate-test-${Date.now()}-${Math.random().toString(36).slice(2)}`,
-    );
-    await mkdir(fakeHome, { recursive: true });
-  });
-
-  afterEach(async () => {
-    await rm(fakeHome, { recursive: true, force: true });
-  });
-
-  test("creates symlinks from legacy paths when new paths are missing", async () => {
-    const oldWorkflow = join(fakeHome, ".uncaged", "workflow");
-    const oldCas = join(fakeHome, ".uncaged", "json-cas");
-    await mkdir(oldWorkflow, { recursive: true });
-    await mkdir(oldCas, { recursive: true });
-    await writeFile(join(oldWorkflow, "config.yaml"), "defaultAgent: test\n", "utf8");
-
-    migrateStorageIfNeeded(fakeHome);
-
-    const newWorkflow = join(fakeHome, ".uwf");
-    const newCas = join(fakeHome, ".ocas");
-    const workflowStat = await lstat(newWorkflow);
-    const casStat = await lstat(newCas);
-    expect(workflowStat.isSymbolicLink()).toBe(true);
-    expect(casStat.isSymbolicLink()).toBe(true);
-  });
-
-  test("skips migration when new paths already exist", async () => {
-    const oldWorkflow = join(fakeHome, ".uncaged", "workflow");
-    const newWorkflow = join(fakeHome, ".uwf");
-    await mkdir(oldWorkflow, { recursive: true });
-    await mkdir(newWorkflow, { recursive: true });
-
-    migrateStorageIfNeeded(fakeHome);
-
-    const stat = await lstat(newWorkflow);
-    expect(stat.isDirectory()).toBe(true);
-  });
-});

packages/cli/src/cli.ts

@@ -30,9 +30,7 @@ import {
 import { parseTimeInput } from "./commands/thread-time-parser.js";
 import { cmdWorkflowAdd, cmdWorkflowList, cmdWorkflowShow } from "./commands/workflow.js";
 import { formatOutput, type OutputFormat } from "./format.js";
-import { migrateStorageIfNeeded, resolveStorageRoot } from "./store.js";
-
-migrateStorageIfNeeded();
+import { resolveStorageRoot } from "./store.js";
 
 function writeOutput(data: unknown): void {
   const fmt = program.opts().format as OutputFormat;

packages/cli/src/store.ts

@@ -1,5 +1,5 @@
 import type { Dirent } from "node:fs";
-import { existsSync, symlinkSync } from "node:fs";
+import { existsSync } from "node:fs";
 import { access, mkdir, readdir, readFile, rename } from "node:fs/promises";
 import { homedir } from "node:os";
 import { join } from "node:path";
@@ -133,30 +133,6 @@ export function resolveStorageRoot(): string {
   return getDefaultStorageRoot();
 }
 
-/** Symlink legacy storage paths to ~/.uwf and ~/.ocas when upgrading from older installs. */
-export function migrateStorageIfNeeded(home: string = homedir()): void {
-  const oldPath = join(home, ".uncaged", "workflow");
-  const newPath = join(home, ".uwf");
-
-  if (!existsSync(newPath) && existsSync(oldPath)) {
-    symlinkSync(oldPath, newPath);
-    // biome-ignore lint/suspicious/noConsole: migration notice
-    console.log("⚠️  Storage linked: ~/.uwf → legacy workflow directory (symlink)");
-    // biome-ignore lint/suspicious/noConsole: migration notice
-    console.log(
-      "   This symlink is temporary. Copy your data to ~/.uwf/ and remove the symlink in a future version.",
-    );
-  }
-
-  const oldCas = join(home, ".uncaged", "json-cas");
-  const newCas = join(home, ".ocas");
-  if (!existsSync(newCas) && existsSync(oldCas)) {
-    symlinkSync(oldCas, newCas);
-    // biome-ignore lint/suspicious/noConsole: migration notice
-    console.log("⚠️  CAS storage linked: ~/.ocas → legacy CAS directory (symlink)");
-  }
-}
-
 /**
  * Deprecated: Use `getGlobalCasDir()` instead.
  * Returns the old CAS directory for backward compatibility.