refactor(sea, test): rename sea/binary → sea/util + fix git-extended timeouts

Two changes folded together in this commit:

──── 1. rename sea/binary.ts → sea/util.ts ────

Aligns the per-subdirectory file convention so both `src/sea/` and
`src/smol/` use the same `util.ts` filename for the file containing
"detection + accessor for the same concept":

  src/sea/util.ts   — isSeaBinary + getSeaBinaryPath
  src/smol/util.ts  — isSmol + getSmolUtil (+ SmolUtilBinding)

Test moved: test/unit/sea/binary.test.mts → test/unit/sea/util.test.mts.

Public import path:
  '@socketsecurity/lib/sea/binary' → '@socketsecurity/lib/sea/util'

──── 2. fix flaky git-extended test timeouts ────

The 13 tests inside `describe('real git operations')` in
test/unit/git-extended.test.mts each do 4-15 `spawnSync('git', ...)`
calls. Under CPU contention from the full-suite parallel run
(~169 test files), individual git ops can take 5-10s, exceeding
vitest's default 10s testTimeout and flaking.

Bumps the describe-scope timeout to 30s via `vi.setConfig()`. No
test logic changes — just gives slow git ops headroom under load.

Verified: full suite now runs to completion (6669 tests green,
31 skipped, 169 files).

Author: jdalton

docs/api-index.md

@@ -225,9 +225,9 @@ Each entry links to the source module and shows the first sentence of its `@file
 
 ## sea/
 
-| Subpath                                                  | Description                                                           |
-| -------------------------------------------------------- | --------------------------------------------------------------------- |
-| [`@socketsecurity/lib/sea/binary`](../src/sea/binary.ts) | SEA (Single Executable Application) binary detection + path accessor. |
+| Subpath                                              | Description                                                           |
+| ---------------------------------------------------- | --------------------------------------------------------------------- |
+| [`@socketsecurity/lib/sea/util`](../src/sea/util.ts) | SEA (Single Executable Application) binary detection + path accessor. |
 
 ## smol/
 

package.json

@@ -639,9 +639,9 @@
       "types": "./dist/schema/validate.d.ts",
       "default": "./dist/schema/validate.js"
     },
-    "./sea/binary": {
-      "types": "./dist/sea/binary.d.ts",
-      "default": "./dist/sea/binary.js"
+    "./sea/util": {
+      "types": "./dist/sea/util.d.ts",
+      "default": "./dist/sea/util.js"
     },
     "./shadow": {
       "types": "./dist/shadow.d.ts",

src/sea/binary.ts src/sea/util.tssrc/sea/binary.ts renamed to src/sea/util.ts

@@ -30,7 +30,7 @@ import {
 } from '@socketsecurity/lib/git'
 import { normalizePath } from '@socketsecurity/lib/paths/normalize'
 import { spawnSync } from '@socketsecurity/lib/spawn'
-import { describe, expect, it } from 'vitest'
+import { describe, expect, it, vi } from 'vitest'
 import { runWithTempDir } from './utils/temp-file-helper'
 
 describe('git extended tests', () => {
@@ -201,7 +201,13 @@ describe('git extended tests', () => {
   })
 
   describe('real git operations', () => {
-    // Note: No need to save/restore cwd - we always use explicit cwd options
+    // Note: No need to save/restore cwd - we always use explicit cwd options.
+    //
+    // Each test in this block does 4-15 spawnSync('git', ...) calls,
+    // which legitimately takes 5-10s under CPU contention when the
+    // full test suite runs in parallel. The default vitest 10s
+    // timeout flakes these — bump describe-scope default to 30s.
+    vi.setConfig({ testTimeout: 30_000, hookTimeout: 30_000 })
 
     it('should work with a temporary git repository', async () => {
       await runWithTempDir(async tmpDir => {

test/unit/git-extended.test.mts

@@ -11,9 +11,9 @@
 
 import { describe, expect, it } from 'vitest'
 
-import { getSeaBinaryPath, isSeaBinary } from '@socketsecurity/lib/sea/binary'
+import { getSeaBinaryPath, isSeaBinary } from '@socketsecurity/lib/sea/util'
 
-describe('sea/binary', () => {
+describe('sea/util', () => {
   describe('isSeaBinary', () => {
     it('should return boolean', () => {
       const result = isSeaBinary()