chore(cli): use joinAnd + getErrorCause helpers in utils/ misc

- basics/vfs-extract.mts: missingTools list now renders as prose
  via joinAnd('a, b, and c').
- terminal/iocraft.mts: inline `e instanceof Error ? e.message :
  String(e)` swapped for getErrorCause(e). require() of a native
  binding can throw non-Error values, so the safe-stringify with
  UNKNOWN_ERROR fallback is correct here.

No behavior change for Error throws.

Author: jdalton

packages/cli/src/utils/basics/vfs-extract.mts

@@ -16,6 +16,7 @@ import { createHash } from 'node:crypto'
 import { homedir } from 'node:os'
 import path from 'node:path'
 
+import { joinAnd } from '@socketsecurity/lib/arrays'
 import { getDefaultLogger } from '@socketsecurity/lib/logger'
 import { normalizePath } from '@socketsecurity/lib/paths/normalize'
 import { spawn } from '@socketsecurity/lib/spawn'
@@ -176,7 +177,7 @@ export async function extractBasicsTools(
     const missingTools = tools.filter(t => !extractedPaths[t])
     if (missingTools.length) {
       throw new Error(
-        `socket-basics VFS extraction returned ${Object.keys(extractedPaths).length}/${tools.length} tools (missing: ${missingTools.join(', ')}); the SEA bundle is incomplete — rebuild with all basics tools included`,
+        `socket-basics VFS extraction returned ${Object.keys(extractedPaths).length}/${tools.length} tools (missing: ${joinAnd(missingTools)}); the SEA bundle is incomplete — rebuild with all basics tools included`,
       )
     }
 

packages/cli/src/utils/terminal/iocraft.mts

@@ -7,6 +7,8 @@
 
 import { createRequire } from 'node:module'
 
+import { getErrorCause } from '../error/errors.mts'
+
 import type iocraft from '@socketaddon/iocraft'
 
 // Re-export iocraft types for direct access when needed.
@@ -27,7 +29,7 @@ function getIocraft(): typeof iocraft {
       iocraftInstance = loaded.default || loaded
     } catch (e) {
       throw new Error(
-        `could not load @socketaddon/iocraft native module (${e instanceof Error ? e.message : String(e)}); reinstall socket-cli to pull the prebuilt for your platform, or check that your platform (${process.platform}-${process.arch}) has a published prebuilt`,
+        `could not load @socketaddon/iocraft native module (${getErrorCause(e)}); reinstall socket-cli to pull the prebuilt for your platform, or check that your platform (${process.platform}-${process.arch}) has a published prebuilt`,
       )
     }
   }