Rebuild: drop NUL from batches; chunk deadline 180 s

A file name with a NUL ("…Brutal Erpresst.ra\u0000…") failed every
batch of range 155595 (HTTP 500, jsonb: \u0000 cannot be converted to
text), so the range looped. fromWire drops NUL from every string.

The chunk deadline was given up 258 times in 3 hours at 300 s (~1.4 a
minute, each holding a connection for 5 minutes): 180 s.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/unit/edge/wire.spec.ts

@@ -0,0 +1,22 @@
+import { test } from '@japa/runner'
+import { fromWire, type WireBatch } from '#lib/edge/index'
+
+test.group('edge / wire', () => {
+  test('fromWire drops NUL from strings, wherever they are', ({ assert }) => {
+    const wire = {
+      from: 1,
+      next: 2,
+      headers: 1,
+      releases: [{ key: 'k', name: 'Brutal.ra\u0000r', payload: Buffer.from('x').toString('base64') }],
+      samples: [],
+      candidates: [],
+      counts: [],
+      fragments: [{ fileKey: 'f', segments: [['a\u0000b.rar', 1, 2, 3]] }],
+    } as unknown as WireBatch
+    const batch = fromWire(wire) as any
+    assert.equal(batch.releases[0].name, 'Brutal.rar')
+    assert.equal(batch.releases[0].payload.toString(), 'x')
+    assert.equal(batch.fragments[0].segments[0][0], 'ab.rar')
+    assert.equal(batch.fragments[0].segments[0][3], 3)
+  })
+})