perf(external): minimize exports to reduce bundle size

Optimize external module exports to only include what we actually use:

- fast-sort: export { createNewSortInstance } only
  - Was: full module (~56 KB source)
  - Now: 2.1 KB bundle (96% reduction)

- fast-glob: export { globStream } only
  - Was: full module (~260 KB source)
  - Now: 82 KB bundle (68% reduction)

- del: export { deleteAsync, deleteSync } only
  - Was: full module
  - Now: 100 KB bundle (includes trash/globby deps)

- streaming-iterables: export { parallelMap, transform } only
  - Was: full module (~168 KB source)
  - Now: 11 KB bundle (93% reduction)

Total estimated savings: ~211 KB from fast-sort and streaming-iterables
alone, plus enables better tree-shaking for consumers.

Pattern established for future external module additions.

Author: jdalton

src/external/del.js

@@ -1 +1,7 @@
-module.exports = require('del')
+// Export only what we use to reduce bundle size
+const { deleteAsync, deleteSync } = require('del')
+
+module.exports = {
+  deleteAsync,
+  deleteSync,
+}

src/external/fast-glob.js

@@ -1 +1,7 @@
-module.exports = require('fast-glob')
+// Export only what we use to reduce bundle size
+const fastGlob = require('fast-glob')
+
+// Export just globStream - the only method we use
+module.exports = fastGlob.globStream
+  ? { globStream: fastGlob.globStream }
+  : fastGlob

src/external/fast-sort.js

@@ -1 +1,6 @@
-module.exports = require('fast-sort')
+// Export only what we use to reduce bundle size
+const { createNewSortInstance } = require('fast-sort')
+
+module.exports = {
+  createNewSortInstance,
+}

src/external/streaming-iterables.js

@@ -1 +1,7 @@
-module.exports = require('streaming-iterables')
+// Export only what we use to reduce bundle size
+const { parallelMap, transform } = require('streaming-iterables')
+
+module.exports = {
+  parallelMap,
+  transform,
+}