Improve nodes view: page navigation and emoji width

- Add page up/down (Ctrl+d/u, PageDown/PageUp) navigation
- Add vim-style g/G for first/last node
- Expand emoji width detection to cover more Unicode ranges
  (Misc Technical, Enclosed Alphanumerics, Geometric shapes, etc.)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: statico

src/ui/App.tsx

@@ -584,15 +584,23 @@ export function App({ address, packetStore, nodeStore, skipConfig = false }: App
         setMode("nodes");
       }
     } else if (mode === "nodes") {
+      const nodePageSize = Math.max(1, terminalHeight - 16);
       if (input === "j" || key.downArrow) {
         setSelectedNodeIndex((i) => Math.min(i + 1, nodes.length - 1));
       }
       if (input === "k" || key.upArrow) {
         setSelectedNodeIndex((i) => Math.max(i - 1, 0));
       }
+      // Page up/down
+      if ((key.ctrl && input === "d") || key.pageDown) {
+        setSelectedNodeIndex((i) => Math.min(i + nodePageSize, nodes.length - 1));
+      }
+      if ((key.ctrl && input === "u") || key.pageUp) {
+        setSelectedNodeIndex((i) => Math.max(i - nodePageSize, 0));
+      }
       // Home/End keys
-      const isNodeHome = input === "\x1b[H" || input === "\x1b[1~" || input === "\x1bOH";
-      const isNodeEnd = input === "\x1b[F" || input === "\x1b[4~" || input === "\x1bOF";
+      const isNodeHome = input === "g" || input === "\x1b[H" || input === "\x1b[1~" || input === "\x1bOH";
+      const isNodeEnd = input === "G" || input === "\x1b[F" || input === "\x1b[4~" || input === "\x1bOF";
       if (isNodeHome) {
         setSelectedNodeIndex(0);
       }

src/ui/components/NodesPanel.tsx

@@ -11,7 +11,17 @@ function stringWidth(str: string): number {
   for (const char of str) {
     const code = char.codePointAt(0) || 0;
     // Emoji and wide characters take 2 spaces
-    if (code > 0x1F000 || (code >= 0x2600 && code <= 0x27BF) || (code >= 0x1F300 && code <= 0x1F9FF)) {
+    // Covers: Misc Technical (23xx), Enclosed Alphanumerics (24xx), Geometric (25xx),
+    // Misc Symbols (26xx), Dingbats (27xx), Misc Symbols (2Bxx), and SMP emojis (1Fxxx)
+    if (
+      code > 0x1F000 ||
+      (code >= 0x2300 && code <= 0x23FF) ||
+      (code >= 0x2460 && code <= 0x24FF) ||
+      (code >= 0x25A0 && code <= 0x25FF) ||
+      (code >= 0x2600 && code <= 0x27BF) ||
+      (code >= 0x2B00 && code <= 0x2BFF) ||
+      (code >= 0x3000 && code <= 0x303F)
+    ) {
       width += 2;
     } else {
       width += 1;