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

crates/guara-core/src/pdf.rs

@@ -1,8 +1,8 @@
-//! Gerador mínimo de PDF (A4, texto e tabelas) para o relatório de recuperação.
+//! Minimal standalone PDF generator (A4, text, and tables) for forensic recovery reports.
 //!
-//! Usa só as fontes padrão do PDF (Helvetica, Helvetica-Bold e Courier) com codificação
-//! WinAnsi, então o arquivo é autocontido e não depende de fontes instaladas. Caracteres fora
-//! do Latin-1/WinAnsi viram `?`.
+//! Uses only built-in PDF Type 1 fonts (Helvetica, Helvetica-Bold, and Courier) with WinAnsi
+//! encoding so output files are self-contained with no embedded font dependencies. Characters
+//! outside Latin-1/WinAnsi are replaced with `?`.
 
 use flate2::write::ZlibEncoder;
 use flate2::Compression;
@@ -29,7 +29,7 @@ impl Font {
     }
 }
 
-// Larguras AFM (milésimos de em) dos caracteres ASCII 32..=126.
+// AFM glyph widths (in thousandths of an em) for ASCII 32..=126.
 const HELV: [u16; 95] = [
     278, 278, 355, 556, 556, 889, 667, 191, 333, 333, 389, 584, 278, 333, 278, 278, 556, 556, 556,
     556, 556, 556, 556, 556, 556, 556, 278, 278, 584, 584, 584, 556, 1015, 667, 667, 722, 722, 667,
@@ -45,7 +45,7 @@ const HELV_B: [u16; 95] = [
     278, 889, 611, 611, 611, 611, 389, 556, 333, 611, 556, 778, 556, 556, 500, 389, 280, 389, 584,
 ];
 
-/// Letra base de um caractere acentuado do Latin-1 (a largura é a da letra sem acento).
+/// Maps a Latin-1 accented character to its ASCII base letter for glyph width lookup.
 fn base_letter(c: char) -> char {
     match c {
         'À'..='Å' => 'A',
@@ -88,7 +88,7 @@ pub fn text_width(s: &str, size: f64, f: Font) -> f64 {
     s.chars().map(|c| char_width(c, f)).sum::<f64>() * size
 }
 
-/// Byte WinAnsi de um caractere (ou `?`).
+/// Converts a Unicode char to its WinAnsi byte (or `?` if unrepresentable).
 fn win_ansi(c: char) -> u8 {
     let n = c as u32;
     match c {
@@ -120,8 +120,8 @@ fn escape(s: &str) -> String {
     o
 }
 
-/// Quebra `s` em linhas de no máximo `width` pontos. Sem espaço onde quebrar (caminhos,
-/// hashes), corta no meio da palavra.
+/// Greedy word-wraps `s` into lines of at most `width` points. Long tokens without spaces
+/// (paths, hashes) are broken mid-token.
 pub fn wrap(s: &str, size: f64, f: Font, width: f64) -> Vec<String> {
     let mut lines = vec![];
     for para in s.split('\n') {
@@ -270,7 +270,7 @@ impl Pdf {
         self.y -= 3.0;
     }
 
-    /// Aviso destacado com barra lateral.
+    /// Renders a highlighted callout box with a colored left accent bar.
     pub fn note(&mut self, s: &str) {
         let size = 9.0;
         let lines = wrap(s, size, Font::Regular, Self::content_width() - 16.0);
@@ -292,7 +292,7 @@ impl Pdf {
         self.y -= h + 6.0;
     }
 
-    /// Linhas rótulo/valor; o valor pode ser monoespaçado.
+    /// Renders key/value metadata rows (with optional monospace value styling).
     pub fn kv(&mut self, rows: &[(&str, &str, Font)]) {
         let lw = 140.0;
         let size = 9.5;
@@ -318,7 +318,7 @@ impl Pdf {
         self.y -= 4.0;
     }
 
-    /// Tabela com cabeçalho repetido a cada página e linhas que quebram texto.
+    /// Renders a multi-page table with repeating headers and wrapped cell text.
     pub fn table(&mut self, cols: &[Col], rows: &[Vec<String>]) {
         let size = 8.0;
         let pad = 3.0;
@@ -391,7 +391,7 @@ impl Pdf {
         self.y -= 6.0;
     }
 
-    /// Fecha o documento. `date` é a data de criação em UTC (`AAAAMMDDHHMMSS`).
+    /// Finalizes and serializes the PDF document. `date` is the UTC creation timestamp (`YYYYMMDDHHMMSS`).
     pub fn finish(mut self, date: &str) -> Vec<u8> {
         if !self.cur.is_empty() || self.pages.is_empty() {
             self.pages.push(std::mem::take(&mut self.cur));
@@ -416,7 +416,7 @@ impl Pdf {
             out.extend_from_slice(body);
             out.extend_from_slice(b"\nendobj\n");
         };
-        // 1 catálogo, 2 páginas, 3-5 fontes, 6 info, depois (página, conteúdo) por página
+        // PDF objects: 1 catalog, 2 pages root, 3-5 fonts, 6 info dict, then (page, content stream) per page
         obj(&mut out, b"<< /Type /Catalog /Pages 2 0 R >>");
         let kids: String = (0..total)
             .map(|i| format!("{} 0 R", 7 + 2 * i))