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Metadata
name
refactoring-clean-code
description
Refactor and improve code quality while preserving behavior. Use when asked to clean up, simplify, restructure, make code more readable or maintainable, remove code smells, or review refactoring opportunities.
Refactoring and Clean Code
Improve the code's clarity, correctness, and maintainability while preserving its intended behavior. Prefer small, verifiable changes over broad rewrites. Clean code is code that is easy to understand and change safely—not code that mechanically follows every rule or uses the fewest lines.

Use this skill when the user asks to refactor code, clean up a project, improve readability or maintainability, remove code smells, simplify logic, or conduct a clean-code review.

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>RFBT Batch 52 - Interactive Quiz</title>
  <style>
    :root {
      --primary-color: #1a365d;
      --secondary-color: #2b6cb0;

<!DOCTYPE html>
<html lang="vi">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Danh Sách Tệp Tin - Download</title>
    <style>
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f4f6f9; color: #333; padding: 40px 20px; }
        .container { max-width: 700px; margin: 0 auto; background: #fff; padding: 40px; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); }

## Regras de negócio: acréscimo no valor unitário

**Parâmetro da loja**

- `FLG_ACRESCEVALORPRODUTOVENDA` (`flgAcresceValorProdutoVenda`, retornado pelo `ObterLojasUsuario`).
- Com **`S`**, o operador pode alterar o valor unitário do item, em venda e em troca.
- Com **`N` ou ausente**, o valor unitário fica bloqueado. No editor, o campo fica desabilitado com uma mensagem explicando o motivo; na tabela, a coluna fica somente leitura.

**Onde se edita**

<?php
// Thư mục lưu trữ file tải lên (nằm cùng cấp với file php)
$target_dir = "uploads/";

// Nếu thư mục "uploads" chưa tồn tại thì tự động tạo mới
if (!file_exists($target_dir)) {
    mkdir($target_dir, 0777, true);
}

if ($_SERVER['REQUEST_METHOD'] == 'POST') {

<!DOCTYPE html>
<html lang="vi">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Danh Sách Tệp Tin - Download</title>
    <style>
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f4f6f9; color: #333; padding: 40px 20px; }
        .container { max-width: 700px; margin: 0 auto; background: #fff; padding: 40px; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); }

<!DOCTYPE html>
<html lang="vi">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Tải Lên Tệp Tin - Upload</title>
    <style>
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f4f6f9; color: #333; padding: 40px 20px; }
        .container { max-width: 600px; margin: 0 auto; background: #fff; padding: 40px; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); }

<!DOCTYPE html>
<html lang="vi">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Hệ Thống Lưu Trữ & Chia Sẻ Tệp Tin</title>
    <style>
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f4f6f9; color: #333; line-height: 1.6; padding: 40px 20px; }
        .container { max-width: 800px; margin: 0 auto; background: #fff; padding: 40px; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); }

/* Style widgetu — kanoniczna wersja jest w script.js (WIDGET_CSS). */

.synerise-widget-root {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2147483646;
}

.synerise-widget {

mkdir -p ~/Work/social && cat > ~/Work/social/CLAUDE.md <<'EOF'
# Contesto per gli agent AI — produzione social
## Formati
- Short/Reel/TikTok: 1080x1920 (9:16), 15–60 s, H.264 + AAC 160k, sottotitoli bruciati
- YouTube: 1920x1080 (16:9), capitoli nella descrizione
- Immagini post: 1080x1350 (4:5) feed, 1080x1920 story
## Brand
- Palette / Font / Tono caption: (inserire); italiano, max 150 caratteri + 5 hashtag
## Convenzioni
- Girato in ~/Video/social/AAAA-MM/cliente/progetto/{raw,proxy,export}