Deepen TDS integration: full terminal CSS coverage + 3 new backgrounds

Terminal Mode:
- Text selection: orange highlight rgba(255,107,0,0.28)
- Links: cyan (#00D4FF) with orange hover glow (#FF6B00)
- Code/pre: TDS green (#00FF88) on terminal bg, left green border
- Strong/b → orange, em/i → cyan, mark → amber, del → red
- Blockquote: orange left border (matches chat reply quotes)
- HR: cyan border with dim glow
- Input/textarea/[contenteditable] focus: orange glow ring
- Tables: TDS headers (orange+uppercase), cyan borders, hover rows
- List markers: cyan ▸ for ul, orange for ol
- Boot box-drawing alignment fixed (51→52 ═)
- data-theme=\"dark\" set on html element when terminal active
- Updated description: correct TDS palette names
- ▶ Boot replay button in settings (visible when terminal on)

Chat backgrounds (+3):
- Tactical: LotusGuild TDS exact cyan dot-grid (28px)
- Circuit: green grid + node dots on dark terminal bg
- Hex Grid: isometric cyan hexagonal outlines

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/features/settings/general/General.tsx

@@ -48,6 +48,7 @@ import {
 } from '../../../hooks/useTheme';
 import { stopPropagation } from '../../../utils/keyboard';
 import { BG_OPTIONS, getChatBg } from '../../lotus/chatBackground';
+import { resetBootSequence, runLotusBootSequence } from '../../../../lotus-boot';
 import { useMessageLayoutItems } from '../../../hooks/useMessageLayout';
 import { useMessageSpacingItems } from '../../../hooks/useMessageSpacing';
 import { useDateFormatItems } from '../../../hooks/useDateFormat';
@@ -375,8 +376,33 @@ function Appearance() {
       <SequenceCard className={SequenceCardStyle} variant="SurfaceVariant" direction="Column">
         <SettingTile
           title="Lotus Terminal Mode"
-          description="Red phosphor color scheme, monospace font, and retro CRT scanlines. A full visual overhaul."
-          after={<Switch variant="Primary" value={lotusTerminal} onChange={setLotusTerminal} />}
+          description="LotusGuild Terminal Design System: Anduril Orange + Ice Cyan + Matrix Green, dot-grid background, CRT scanlines, and boot sequence animation."
+          after={
+            <Box direction="Row" gap="200" align="Center">
+              {lotusTerminal && (
+                <button
+                  type="button"
+                  onClick={() => { resetBootSequence(); runLotusBootSequence(true); }}
+                  title="Replay boot sequence"
+                  style={{
+                    background: 'transparent',
+                    border: '1px solid rgba(255,107,0,0.35)',
+                    color: '#FF6B00',
+                    fontSize: '0.65rem',
+                    padding: '0.2rem 0.6rem',
+                    cursor: 'pointer',
+                    fontFamily: 'inherit',
+                    letterSpacing: '0.1em',
+                    textTransform: 'uppercase',
+                    whiteSpace: 'nowrap',
+                  }}
+                >
+                  ▶ Boot
+                </button>
+              )}
+              <Switch variant="Primary" value={lotusTerminal} onChange={setLotusTerminal} />
+            </Box>
+          }
         />
       </SequenceCard>
     </Box>