verify_tui_fixes.cpp

// Verification document for TUI fixes

/*
ISSUE 1: Header background color not aligned
BEFORE: Lines 637-645 in draw_status_bar()
  output << "\033[32m" << status_text << "\033[0m " << metrics;
  output << "\033[0m";  // Resets background!
  // Then tries to fill with spaces (no background)
  
AFTER: Lines 638-642
  output << "\033[1;32;44m" << status_text << bg_color << " " << metrics;
  // Keeps background color throughout
  fill_line_with_bg(output, total_content, cols, bg_color);
  // Properly fills with background color

ISSUE 2: Tab bar using approximate width instead of calculated
BEFORE: Line 673
  int used = 35; // Approximate - WRONG!
  
AFTER: Lines 654-666
  int tab_width_used = 0;
  for (size_t i = 0; i < tabs.size(); ++i) {
      std::string tab_text = " " + tabs[i].first + " ";
      output << tab_text;
      tab_width_used += tab_text.length(); // CALCULATED!
  }

ISSUE 3: Broken fill loop in tab bar
BEFORE: Lines 686-690
  for (int i = cols; i < cols; ++i) output << " "; // NEVER RUNS!
  
AFTER: Removed entirely, separator line ends with newline

ISSUE 4: Command bar double-filling and background reset
BEFORE: Lines 1285-1289
  for (int i = used; i < cols; ++i) output << " ";
  output << "\033[0m";  // Resets background!
  for (int i = used; i < cols; ++i) output << " "; // Fills AGAIN without background
  
AFTER: Lines 1296-1297
  fill_line_with_bg(output, used, cols, bg_color);
  // Single, correct fill with background color

ISSUE 5: Hardcoded margins in multiple places
BEFORE: tui_input.cpp lines 366-371, 401-406, etc.
  const int margin_top = 1;
  const int margin_bottom = 1;
  // etc - repeated in MANY functions
  
AFTER: tui.h lines 133-142
  static constexpr int MARGIN_TOP = 1;
  // All in ONE place, all functions use constants

ISSUE 6: 'q' key behavior not matching ESC
BEFORE: tui_input.cpp line 274
  } else if (buf[0] == 'q' || buf[0] == 'Q') {
      show_quit_confirmation(); // Always quits
      
AFTER: Lines 274-282
  } else if (buf[0] == 'q') {
      if (detail_view_) {
          hide_detail(); // Same as ESC
      } else {
          show_quit_confirmation();
      }
  } else if (buf[0] == 'Q') {
      show_quit_confirmation(); // Always quits
*/