feat(cybersecurity): auto-commit con 48 cambios

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

functions/tui/vt_render.go

@@ -0,0 +1,54 @@
+package tui
+
+import (
+	"strings"
+
+	"github.com/hinshun/vt10x"
+)
+
+// VTRender emulates a terminal of size cols×rows, feeds raw into it,
+// and returns the resulting screen as plain text preserving the visual layout.
+//
+// Unlike strip_ansi which removes escape sequences from sequential output,
+// VTRender correctly handles TUIs that use absolute cursor positioning
+// (ESC[row;colH, ESC[colG, etc.) by maintaining a 2D grid and reconstructing
+// real spaces between columns.
+//
+// Defaults: rows<=0 → 40, cols<=0 → 120.
+// Trailing spaces on each line are trimmed. Trailing empty lines are removed.
+func VTRender(raw string, rows, cols int) string {
+	if rows <= 0 {
+		rows = 40
+	}
+	if cols <= 0 {
+		cols = 120
+	}
+
+	// Create a fresh terminal emulator for each call — no shared state.
+	term := vt10x.New(vt10x.WithSize(cols, rows))
+	term.Write([]byte(raw)) //nolint:errcheck // Write on vt10x never returns a meaningful error
+
+	// String() returns all rows joined by '\n', one row per terminal line.
+	// Each row is exactly `cols` runes wide (padded with NUL/space for empty cells).
+	raw = term.String()
+
+	lines := strings.Split(raw, "\n")
+
+	// Trim trailing spaces from every line (cells that were never written
+	// contain NUL '\x00' in some versions, so we trim both NUL and space).
+	for i, line := range lines {
+		// Replace NUL characters (unwritten cells) with spaces first.
+		line = strings.ReplaceAll(line, "\x00", " ")
+		lines[i] = strings.TrimRight(line, " ")
+	}
+
+	// Remove trailing empty lines — the TUI probably only used the top portion
+	// of the grid. Keep intermediate empty lines (real visual separators).
+	last := len(lines) - 1
+	for last >= 0 && lines[last] == "" {
+		last--
+	}
+	lines = lines[:last+1]
+
+	return strings.Join(lines, "\n")
+}