Add welcome dashboard as default view

Replace the All Services grid as the landing view with a
Nextcloud-style welcome dashboard:

- Greeting (time-of-day), "Welcome to Your Sovereign Digital &
  Financial Life" headline, version + role meta line
- Status cards: Systems Operational, Network (LAN/WAN/hostname),
  Bitcoin sync progress with ETA, and available-updates card
- Calm drifting orb background animation (transform-only,
  disabled under prefers-reduced-motion)
- Services grid stays mounted but hidden until the user browses
  (Browse button, search, or a nav category); Dashboard nav item
  returns to the welcome view
- Move role badge and autolaunch preference out of the sidebar;
  autolaunch toggle now lives in the Systems Operational modal
- Remove LAN/WAN chip from the topbar; IPs live on the Network card

app/sovran_systemsos_web/static/css/layout.css

@@ -204,30 +204,131 @@
 
 .sidebar-spacer { flex: 1; min-height: 18px; }
 
-.sidebar-footer {
-  border-top: 1px solid var(--border);
-  padding-top: 14px;
+/* ── Welcome dashboard (default view) ───────────────────────────── */
+
+.welcome {
+  position: relative;
+  max-width: 1040px;
+  margin: 0 auto;
+  padding: 44px 8px 24px;
+  overflow: hidden;
+  min-height: 100%;
 }
 
-.host-note {
-  text-align: center;
-  font-size: 0.66rem;
+/* Soft drifting glow — calm, GPU-cheap (transforms only) */
+.welcome-bg {
+  position: absolute;
+  inset: 0;
+  pointer-events: none;
+}
+
+.orb {
+  position: absolute;
+  border-radius: 50%;
+  will-change: transform;
+}
+
+.orb-a {
+  width: 560px; height: 560px;
+  left: -140px; top: -180px;
+  background: radial-gradient(circle, rgba(62, 207, 142, 0.10), transparent 70%);
+  animation: orb-drift-a 26s ease-in-out infinite alternate;
+}
+
+.orb-b {
+  width: 680px; height: 680px;
+  right: -200px; top: 20%;
+  background: radial-gradient(circle, rgba(120, 174, 237, 0.07), transparent 70%);
+  animation: orb-drift-b 34s ease-in-out infinite alternate;
+}
+
+.orb-c {
+  width: 460px; height: 460px;
+  left: 34%; bottom: -200px;
+  background: radial-gradient(circle, rgba(66, 243, 154, 0.06), transparent 70%);
+  animation: orb-drift-c 42s ease-in-out infinite alternate;
+}
+
+@keyframes orb-drift-a { to { transform: translate(70px, 50px) scale(1.14); } }
+@keyframes orb-drift-b { to { transform: translate(-60px, -70px) scale(1.10); } }
+@keyframes orb-drift-c { to { transform: translate(50px, -40px) scale(1.18); } }
+
+@media (prefers-reduced-motion: reduce) {
+  .orb { animation: none; }
+  .welcome-inner { animation: none; }
+}
+
+.welcome-inner {
+  position: relative;
+  animation: welcome-in 0.5s ease both;
+}
+
+@keyframes welcome-in {
+  from { opacity: 0; transform: translateY(14px); }
+}
+
+.welcome-greeting {
+  font-size: 0.98rem;
+  font-weight: 650;
+  color: var(--text-2);
+}
+
+.welcome-title {
+  margin-top: 6px;
+  font-size: clamp(1.7rem, 2.8vw, 2.25rem);
+  font-weight: 800;
+  letter-spacing: -0.02em;
+  line-height: 1.18;
+}
+
+.welcome-title em { font-style: normal; color: var(--accent); }
+
+.welcome-meta {
+  margin-top: 12px;
+  font-size: 0.8rem;
   color: var(--text-3);
   font-family: var(--mono);
-  margin-top: 9px;
 }
 
-/* ── Widgets row (dashboard.js) ─────────────────────────────────── */
+.welcome-meta-sep { margin: 0 8px; opacity: 0.6; }
 
-.widgets {
+.welcome-cards {
   display: grid;
-  grid-template-columns: 1.1fr 1.45fr;
+  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
   gap: 16px;
-  margin-bottom: 32px;
+  margin-top: 34px;
 }
 
-@media (max-width: 900px) {
-  .widgets { grid-template-columns: 1fr; }
+/* wrappers whose children become grid items */
+.welcome-dyn { display: contents; }
+
+.w-network .net-row {
+  display: flex;
+  align-items: baseline;
+  gap: 10px;
+  margin-top: 6px;
+  font-family: var(--mono);
+}
+
+.w-network .net-k {
+  font-size: 0.6rem;
+  font-weight: 800;
+  letter-spacing: 0.08em;
+  color: var(--text-3);
+  width: 30px;
+  flex-shrink: 0;
+}
+
+.w-network .ip-value {
+  font-size: 0.82rem;
+  font-weight: 600;
+  color: var(--text);
+}
+
+.w-network .sub { margin-top: 8px; }
+
+.welcome-browse {
+  margin-top: 26px;
 }
 
 .widget {
@@ -275,6 +376,10 @@
   background: linear-gradient(160deg, #f7931a, #b96a0a);
 }
 
+.widget-chip.chip-amber {
+  background: linear-gradient(160deg, #b98426, #8a5f16);
+}
+
 .widget-chip.chip-sovran {
   background: linear-gradient(160deg, #42f39a, #1aa45d);
 }