Release 3.8.2.11: idle rev-cache, port-safe Connect, single-instance tray UX.

Faster unchanged polls; orphan-core cleanup on listen ports; clearer busy-port errors; cores only from binDir; incremental server list; CSP without Google Fonts; single-instance activates existing window; close-to-tray without kill-others or balloon.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/appui/app.css

@@ -42,6 +42,8 @@
       --ms-mid: #b8860b;
       --focus-ring: rgba(13,138,102,.12);
       --theme-btn-bg: rgba(255,255,255,.7);
+      --font-ui: "Segoe UI Variable Text", "Segoe UI", "SF Pro Text", "Helvetica Neue", sans-serif;
+      --font-display: "Segoe UI Variable Display", "Segoe UI", "SF Pro Display", "Helvetica Neue", sans-serif;
     }
     html[data-theme="dark"] {
       --ink: #e6f4ee;
@@ -90,7 +92,7 @@
     html, body {
       margin: 0;
       min-height: 100%;
-      font-family: Figtree, sans-serif;
+      font-family: var(--font-ui);
       color: var(--ink);
       background: var(--page-bg);
       transition: color .2s var(--ease), background .25s var(--ease);
@@ -130,7 +132,7 @@
     }
     .update-banner.show { display: block; }
     .update-banner strong {
-      font-family: Sora, sans-serif;
+      font-family: var(--font-display);
       display: block;
       margin-bottom: 4px;
       font-size: .95rem;
@@ -199,7 +201,7 @@
       flex-wrap: wrap;
     }
     .brand {
-      font-family: Sora, sans-serif;
+      font-family: var(--font-display);
       font-size: 1.7rem;
       font-weight: 800;
       letter-spacing: -0.045em;
@@ -319,7 +321,7 @@
       justify-content: space-between;
       gap: 8px;
       margin: 0 0 8px;
-      font-family: Sora, sans-serif;
+      font-family: var(--font-display);
       font-size: .78rem;
       font-weight: 700;
       letter-spacing: .04em;
@@ -528,7 +530,7 @@
       width: 100%;
       min-height: 52px;
       font-size: 1.02rem;
-      font-family: Sora, sans-serif;
+      font-family: var(--font-display);
     }
 
     .actions { display: grid; gap: 8px; }
@@ -749,7 +751,7 @@
       background: var(--shop-bg);
     }
     .shop h3 {
-      font-family: Sora, sans-serif;
+      font-family: var(--font-display);
       font-size: 1rem;
       letter-spacing: -0.02em;
       margin: 0 0 5px;
@@ -806,7 +808,7 @@
       color: var(--ink);
     }
     .modal h2 {
-      font-family: Sora, sans-serif;
+      font-family: var(--font-display);
       margin: 0 0 12px;
       font-size: 1.2rem;
       letter-spacing: -.02em;