refactor: rename editable modules to edit for brevity

Rename editable modules to edit to reduce typing:
- src/json/editable.ts → src/json/edit.ts
- src/packages/editable.ts → src/packages/edit.ts
- test/unit/packages/editable.test.ts → test/unit/packages/edit.test.ts

Update all imports and exports:
- package.json: ./json/editable → ./json/edit, ./packages/editable → ./packages/edit
- src/packages.ts: Update import from './packages/editable' to './packages/edit'
- src/packages/operations.ts: Update import from './editable' to './edit'
- test/unit/json.test.ts: Update require from json/editable to json/edit
- test/unit/packages/edit.test.ts: Update import from packages/editable to packages/edit

Fix esm-imports.test.mjs:
- Convert from node:test API to vitest for compatibility
- Replace assert.strictEqual with expect().toBe()
- Replace assert.ok with expect().toBe(true)

All tests passing (6055 tests).

refactor: reorganize constants and dlx into subdirectories

Move constant files to constants/ and dlx files to dlx/ for better organization:

Constants moved to constants/:
- src/maintained-node-versions.ts → src/constants/maintained-node-versions.ts
- src/package-default-node-range.ts → src/constants/package-default-node-range.ts
- src/package-default-socket-categories.ts → src/constants/package-default-socket-categories.ts
- src/lifecycle-script-names.ts → src/constants/lifecycle-script-names.ts

DLX files moved to dlx/ (no index.ts):
- src/dlx.ts → src/dlx/main.ts
- src/dlx-binary.ts → src/dlx/binary.ts
- src/dlx-manifest.ts → src/dlx/manifest.ts
- src/dlx-package.ts → src/dlx/package.ts

Updated all imports:
- src/constants/node.ts: Import from ./maintained-node-versions
- src/constants/packages.ts: Import from ./lifecycle-script-names, ./package-default-*
- src/constants/package-default-node-range.ts: Import from ../external/semver.js
- src/dlx/*.ts: Update all internal and external imports to use ../

Updated package.json exports:
- ./maintained-node-versions → ./constants/maintained-node-versions
- ./package-default-node-range → ./constants/package-default-node-range
- ./package-default-socket-categories → ./constants/package-default-socket-categories
- ./lifecycle-script-names → ./constants/lifecycle-script-names
- ./dlx → ./dlx/main
- ./dlx-binary → ./dlx/binary
- ./dlx-manifest → ./dlx/manifest
- ./dlx-package → ./dlx/package

Moved test files to match new structure:
- test/unit/maintained-node-versions.test.ts → test/unit/constants/maintained-node-versions.test.ts
- test/unit/package-default-node-range.test.ts → test/unit/constants/package-default-node-range.test.ts
- test/unit/package-default-socket-categories.test.ts → test/unit/constants/package-default-socket-categories.test.ts
- test/unit/lifecycle-script-names.test.ts → test/unit/constants/lifecycle-script-names.test.ts
- test/unit/dlx.test.ts → test/unit/dlx/main.test.ts
- test/unit/dlx-binary.test.ts → test/unit/dlx/binary.test.ts
- test/unit/dlx-manifest.test.ts → test/unit/dlx/manifest.test.ts
- test/unit/dlx-package.test.ts → test/unit/dlx/package.test.ts

Updated test imports to use new module paths.

All tests passing (6060 tests).

refactor(dlx): split main.ts into focused modules

Split dlx/main.ts into smaller, focused modules for better organization
and maintainability.

Changes:
- Create dlx/cache.ts for cache key generation (generateCacheKey)
- Create dlx/paths.ts for path utilities (getDlxPackageDir, getDlxInstalledPackageDir, getDlxPackageJsonPath, getDlxPackageNodeModulesDir, isInSocketDlx)
- Create dlx/dir.ts for directory management (clearDlx, clearDlxSync, dlxDirExists, dlxDirExistsAsync, ensureDlxDir, ensureDlxDirSync)
- Create dlx/packages.ts for package management (isDlxPackageInstalled, isDlxPackageInstalledAsync, listDlxPackages, listDlxPackagesAsync, removeDlxPackage, removeDlxPackageSync)
- Remove old dlx/main.ts file
- Update imports in dlx/binary.ts and dlx/package.ts to use dlx/cache
- Update package.json exports:
  - Remove ./dlx/main
  - Add ./dlx/cache, ./dlx/dir, ./dlx/packages, ./dlx/paths
- Update test imports in test/unit/dlx/main.test.ts to use split modules
- All tests passing (182 tests, 179 passed, 3 skipped)

Author: jdalton

package.json

@@ -151,10 +151,26 @@
       "types": "./dist/constants/licenses.d.ts",
       "default": "./dist/constants/licenses.js"
     },
+    "./constants/lifecycle-script-names": {
+      "types": "./dist/constants/lifecycle-script-names.d.ts",
+      "default": "./dist/constants/lifecycle-script-names.js"
+    },
+    "./constants/maintained-node-versions": {
+      "types": "./dist/constants/maintained-node-versions.d.ts",
+      "default": "./dist/constants/maintained-node-versions.js"
+    },
     "./constants/node": {
       "types": "./dist/constants/node.d.ts",
       "default": "./dist/constants/node.js"
     },
+    "./constants/package-default-node-range": {
+      "types": "./dist/constants/package-default-node-range.d.ts",
+      "default": "./dist/constants/package-default-node-range.js"
+    },
+    "./constants/package-default-socket-categories": {
+      "types": "./dist/constants/package-default-socket-categories.d.ts",
+      "default": "./dist/constants/package-default-socket-categories.js"
+    },
     "./constants/packages": {
       "types": "./dist/constants/packages.d.ts",
       "default": "./dist/constants/packages.js"
@@ -203,21 +219,33 @@
       "types": "./dist/debug.d.ts",
       "default": "./dist/debug.js"
     },
-    "./dlx": {
-      "types": "./dist/dlx.d.ts",
-      "default": "./dist/dlx.js"
+    "./dlx/binary": {
+      "types": "./dist/dlx/binary.d.ts",
+      "default": "./dist/dlx/binary.js"
+    },
+    "./dlx/cache": {
+      "types": "./dist/dlx/cache.d.ts",
+      "default": "./dist/dlx/cache.js"
+    },
+    "./dlx/dir": {
+      "types": "./dist/dlx/dir.d.ts",
+      "default": "./dist/dlx/dir.js"
     },
-    "./dlx-binary": {
-      "types": "./dist/dlx-binary.d.ts",
-      "default": "./dist/dlx-binary.js"
+    "./dlx/manifest": {
+      "types": "./dist/dlx/manifest.d.ts",
+      "default": "./dist/dlx/manifest.js"
     },
-    "./dlx-manifest": {
-      "types": "./dist/dlx-manifest.d.ts",
-      "default": "./dist/dlx-manifest.js"
+    "./dlx/package": {
+      "types": "./dist/dlx/package.d.ts",
+      "default": "./dist/dlx/package.js"
     },
-    "./dlx-package": {
-      "types": "./dist/dlx-package.d.ts",
-      "default": "./dist/dlx-package.js"
+    "./dlx/packages": {
+      "types": "./dist/dlx/packages.d.ts",
+      "default": "./dist/dlx/packages.js"
+    },
+    "./dlx/paths": {
+      "types": "./dist/dlx/paths.d.ts",
+      "default": "./dist/dlx/paths.js"
     },
     "./effects/pulse-frames": {
       "types": "./dist/effects/pulse-frames.d.ts",
@@ -355,9 +383,9 @@
       "types": "./dist/ipc.d.ts",
       "default": "./dist/ipc.js"
     },
-    "./json/editable": {
-      "types": "./dist/json/editable.d.ts",
-      "default": "./dist/json/editable.js"
+    "./json/edit": {
+      "types": "./dist/json/edit.d.ts",
+      "default": "./dist/json/edit.js"
     },
     "./json/format": {
       "types": "./dist/json/format.d.ts",
@@ -371,10 +399,6 @@
       "types": "./dist/json/types.d.ts",
       "default": "./dist/json/types.js"
     },
-    "./lifecycle-script-names": {
-      "types": "./dist/lifecycle-script-names.d.ts",
-      "default": "./dist/lifecycle-script-names.js"
-    },
     "./links": {
       "types": "./dist/links/index.d.ts",
       "default": "./dist/links/index.js"
@@ -387,10 +411,6 @@
       "types": "./dist/logger.d.ts",
       "default": "./dist/logger.js"
     },
-    "./maintained-node-versions": {
-      "types": "./dist/maintained-node-versions.d.ts",
-      "default": "./dist/maintained-node-versions.js"
-    },
     "./memoization": {
       "types": "./dist/memoization.d.ts",
       "default": "./dist/memoization.js"
@@ -399,14 +419,6 @@
       "types": "./dist/objects.d.ts",
       "default": "./dist/objects.js"
     },
-    "./package-default-node-range": {
-      "types": "./dist/package-default-node-range.d.ts",
-      "default": "./dist/package-default-node-range.js"
-    },
-    "./package-default-socket-categories": {
-      "types": "./dist/package-default-socket-categories.d.ts",
-      "default": "./dist/package-default-socket-categories.js"
-    },
     "./package-extensions": {
       "types": "./dist/package-extensions.d.ts",
       "default": "./dist/package-extensions.js"
@@ -415,9 +427,9 @@
       "types": "./dist/packages.d.ts",
       "default": "./dist/packages.js"
     },
-    "./packages/editable": {
-      "types": "./dist/packages/editable.d.ts",
-      "default": "./dist/packages/editable.js"
+    "./packages/edit": {
+      "types": "./dist/packages/edit.d.ts",
+      "default": "./dist/packages/edit.js"
     },
     "./packages/exports": {
       "types": "./dist/packages/exports.d.ts",

src/lifecycle-script-names.ts src/constants/lifecycle-script-names.tssrc/lifecycle-script-names.ts renamed to src/constants/lifecycle-script-names.ts

@@ -2,7 +2,7 @@
  * Node.js runtime: versions, features, flags, and capabilities.
  */
 
-import { maintainedNodeVersions } from '../maintained-node-versions'
+import { maintainedNodeVersions } from './maintained-node-versions'
 
 const NODE_VERSION = process.version
 

src/maintained-node-versions.ts src/constants/maintained-node-versions.tssrc/maintained-node-versions.ts renamed to src/constants/maintained-node-versions.ts

@@ -3,7 +3,7 @@
  */
 
 import { maintainedNodeVersions } from './maintained-node-versions'
-import * as semver from './external/semver.js'
+import * as semver from '../external/semver.js'
 
 /* c8 ignore next - External semver call */
 const packageDefaultNodeRange = `>=${semver.parse(maintainedNodeVersions.last).major}`

src/constants/node.ts

@@ -3,9 +3,9 @@
  */
 
 import { getNpmLifecycleEvent as getNpmLifecycleEventEnv } from '../env/npm'
-import { lifecycleScriptNames as lifecycleScriptNamesImport } from '../lifecycle-script-names'
-import { packageDefaultNodeRange as packageDefaultNodeRangeImport } from '../package-default-node-range'
-import { packageDefaultSocketCategories as packageDefaultSocketCategoriesImport } from '../package-default-socket-categories'
+import { lifecycleScriptNames as lifecycleScriptNamesImport } from './lifecycle-script-names'
+import { packageDefaultNodeRange as packageDefaultNodeRangeImport } from './package-default-node-range'
+import { packageDefaultSocketCategories as packageDefaultSocketCategoriesImport } from './package-default-socket-categories'
 import { packageExtensions as packageExtensionsImport } from '../package-extensions'
 
 import pacote from '../external/pacote'