refactor(cli): restructure cmd-*.ts into commands/ subdirectories

Reorganize flat cmd-*.ts files into commands/{workflow,thread,cas,init}/
subdirectories that strictly mirror the CLI subcommand hierarchy:

- workflow/: add, list, show, rm, history, rollback
- thread/: run, list, show, rm, fork, ps, kill, live, pause, resume
- cas/: get, put, list, rm, gc
- init/: workspace, template

Each group has an index.ts re-export. Split multi-command files
(cmd-cas.ts, cmd-thread.ts, cmd-init.ts) into per-subcommand files.
Rename cmd-help.ts → skill.ts to match the primary command name.

Update all import paths in cli-dispatch.ts and test files.

Pure structural change — no logic modifications.

Ref: #93, closes #94

packages/cli-workflow/__tests__/bundle-fixture.ts

@@ -1,4 +1,4 @@
-import type { ParsedAddArgv } from "../src/cmd-add.js";
+import type { ParsedAddArgv } from "../src/commands/workflow/add.js";
 
 export function addCliArgs(name: string, filePath: string): ParsedAddArgv {
   return { name, filePath, typesPath: null };

packages/cli-workflow/__tests__/commands.test.ts

@@ -4,13 +4,16 @@ import { tmpdir } from "node:os";
 import { join } from "node:path";
 
 import { getGlobalCasDir, getRegisteredWorkflow, readWorkflowRegistry } from "@uncaged/workflow";
-import { cmdAdd } from "../src/cmd-add.js";
-import { cmdCasGet, cmdCasList, cmdCasPut, cmdCasRm } from "../src/cmd-cas.js";
-import { cmdHistory } from "../src/cmd-history.js";
-import { cmdList, formatListLines } from "../src/cmd-list.js";
-import { cmdRemove } from "../src/cmd-remove.js";
-import { cmdRollback } from "../src/cmd-rollback.js";
-import { cmdShow } from "../src/cmd-show.js";
+import { cmdCasGet } from "../src/commands/cas/get.js";
+import { cmdCasList } from "../src/commands/cas/list.js";
+import { cmdCasPut } from "../src/commands/cas/put.js";
+import { cmdCasRm } from "../src/commands/cas/rm.js";
+import { cmdAdd } from "../src/commands/workflow/add.js";
+import { cmdHistory } from "../src/commands/workflow/history.js";
+import { cmdList, formatListLines } from "../src/commands/workflow/list.js";
+import { cmdRemove } from "../src/commands/workflow/rm.js";
+import { cmdRollback } from "../src/commands/workflow/rollback.js";
+import { cmdShow } from "../src/commands/workflow/show.js";
 import { addCliArgs } from "./bundle-fixture.js";
 
 const fixtureDescriptor = `export const descriptor = { description: "fixture", roles: {} };

packages/cli-workflow/__tests__/fork-cli.test.ts

@@ -3,9 +3,9 @@ import { mkdir, mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { createCasStore, getContentMerklePayload, getGlobalCasDir } from "@uncaged/workflow";
-import { cmdAdd } from "../src/cmd-add.js";
-import { cmdFork } from "../src/cmd-fork.js";
-import { cmdRun } from "../src/cmd-run.js";
+import { cmdFork } from "../src/commands/thread/fork.js";
+import { cmdRun } from "../src/commands/thread/run.js";
+import { cmdAdd } from "../src/commands/workflow/add.js";
 import { pathExists } from "../src/fs-utils.js";
 import { addCliArgs } from "./bundle-fixture.js";
 

packages/cli-workflow/__tests__/gc-cli.test.ts

@@ -10,7 +10,7 @@ import {
   getGlobalCasDir,
   putContentMerkleNode,
 } from "@uncaged/workflow";
-import { cmdThreadRemove } from "../src/cmd-thread.js";
+import { cmdThreadRemove } from "../src/commands/thread/rm.js";
 import { pathExists } from "../src/fs-utils.js";
 
 const cliEntryPath = fileURLToPath(new URL("../src/cli.ts", import.meta.url));

packages/cli-workflow/__tests__/help.test.ts

@@ -5,7 +5,7 @@ import {
   formatSkillIndex,
   formatSkillTopic,
   getSkillTopics,
-} from "../src/cmd-help.js";
+} from "../src/skill.js";
 
 const STORAGE_ROOT = "/tmp/help-test-storage";
 

packages/cli-workflow/__tests__/init-template.test.ts

@@ -4,7 +4,8 @@ import { tmpdir } from "node:os";
 import { join } from "node:path";
 
 import { runCli } from "../src/cli-dispatch.js";
-import { cmdInitTemplate, cmdInitWorkspace } from "../src/cmd-init.js";
+import { cmdInitTemplate } from "../src/commands/init/template.js";
+import { cmdInitWorkspace } from "../src/commands/init/workspace.js";
 import { pathExists } from "../src/fs-utils.js";
 
 describe("init template", () => {

packages/cli-workflow/__tests__/init-workspace.test.ts

@@ -4,7 +4,7 @@ import { tmpdir } from "node:os";
 import { join } from "node:path";
 
 import { formatCliUsage, runCli } from "../src/cli-dispatch.js";
-import { cmdInitWorkspace } from "../src/cmd-init.js";
+import { cmdInitWorkspace } from "../src/commands/init/workspace.js";
 import { pathExists } from "../src/fs-utils.js";
 
 describe("init workspace", () => {

packages/cli-workflow/__tests__/live.test.ts

@@ -13,7 +13,7 @@ import {
   LIVE_CONTENT_MAX_LINES,
   type LiveRoleRow,
   renderLiveRoleStepLines,
-} from "../src/cmd-live.js";
+} from "../src/commands/thread/live.js";
 import { parseLiveArgv } from "../src/live-argv.js";
 
 const cliEntryPath = fileURLToPath(new URL("../src/cli.ts", import.meta.url));

packages/cli-workflow/__tests__/thread-cli.test.ts

@@ -5,15 +5,16 @@ import { tmpdir } from "node:os";
 import { dirname, join } from "node:path";
 import { fileURLToPath } from "node:url";
 import { getGlobalCasDir } from "@uncaged/workflow";
-import { cmdAdd } from "../src/cmd-add.js";
-import { cmdCasPut } from "../src/cmd-cas.js";
-import { cmdKill } from "../src/cmd-kill.js";
-import { cmdPause } from "../src/cmd-pause.js";
-import { cmdPs } from "../src/cmd-ps.js";
-import { cmdResume } from "../src/cmd-resume.js";
-import { cmdRun } from "../src/cmd-run.js";
-import { cmdThreadRemove, cmdThreadShow } from "../src/cmd-thread.js";
-import { cmdThreads } from "../src/cmd-threads.js";
+import { cmdCasPut } from "../src/commands/cas/put.js";
+import { cmdKill } from "../src/commands/thread/kill.js";
+import { cmdThreads } from "../src/commands/thread/list.js";
+import { cmdPause } from "../src/commands/thread/pause.js";
+import { cmdPs } from "../src/commands/thread/ps.js";
+import { cmdResume } from "../src/commands/thread/resume.js";
+import { cmdThreadRemove } from "../src/commands/thread/rm.js";
+import { cmdRun } from "../src/commands/thread/run.js";
+import { cmdThreadShow } from "../src/commands/thread/show.js";
+import { cmdAdd } from "../src/commands/workflow/add.js";
 import { pathExists, readTextFileIfExists } from "../src/fs-utils.js";
 import { addCliArgs } from "./bundle-fixture.js";