chore(i18n): finish translating code comments and scripts to English

Completes the English-only standardization for code, comments, scripts
and CI templates (UI/CLI-facing strings stay bilingual pt-BR/en,
untouched). Covers the remaining crates/, apps/gui/ui/ and
apps/gui/src-tauri/ comments, .gitea/ workflow and template comments,
.githooks/ hooks, and the scripts/ source comments for the files
already renamed in a prior commit (check.sh, generate-logo.py,
install-hooks.sh).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VAyr8d7HuAdUGB6aA5xmDD

scripts/test_make_latest_json.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-"""Teste de scripts/make-latest-json.py: python3 scripts/test_make_latest_json.py"""
+"""Unit tests for scripts/make-latest-json.py: python3 scripts/test_make_latest_json.py"""
 import importlib.util
 import os
 import sys
@@ -16,19 +16,19 @@ BASE = "https://git.lucasrguerra.dev.br/lucasrguerra/guara/releases/download/v1.
 
 def assets(version="1.3.2"):
     names = [patterns[0].format(v=version) for _, patterns in m.PLATFORMS]
-    return {n: (BASE + n, f"assinatura-de-{n}\n") for n in names}
+    return {n: (BASE + n, f"sig-of-{n}\n") for n in names}
 
 
 class LatestJson(unittest.TestCase):
     def test_all_platforms_and_variants(self):
-        d = m.build("1.3.2", "### Novidades\n", assets(), "2026-10-30T12:00:00Z")
+        d = m.build("1.3.2", "### What's New\n", assets(), "2026-10-30T12:00:00Z")
         self.assertEqual(d["version"], "1.3.2")
-        self.assertEqual(d["notes"], "### Novidades")
+        self.assertEqual(d["notes"], "### What's New")
         p = d["platforms"]
         for k in ("linux-x86_64", "linux-x86_64-appimage", "linux-aarch64", "windows-x86_64", "windows-x86_64-nsis"):
             self.assertIn(k, p)
         self.assertTrue(p["windows-x86_64"]["url"].endswith("x64-setup.exe"))
-        self.assertEqual(p["linux-x86_64"]["signature"], "assinatura-de-Guará_1.3.2_amd64.AppImage")
+        self.assertEqual(p["linux-x86_64"]["signature"], "sig-of-Guará_1.3.2_amd64.AppImage")
 
     def test_missing_package_is_left_out(self):
         a = assets()