Add React/TypeScript web interface with Chakra UI and SignalR integration

Implement web frontend using Vite + React + TypeScript with:
- Chakra UI component library for theming and styling
- SignalR bridge (lunaBridge) for real-time server communication
- Chat components (ChatPanel, ChatInput, ChatMessage)
- Layout components (AppLayout, Sidebar, StatusBar, SystemPanel)
- Custom useChat hook for conversation state management
- Dark/light theme support via ColorModeProvider
- Mock conversation data for development

WebInterface/src/components/layout/StatusBar.tsx

@@ -0,0 +1,35 @@
+import { Flex, Text, Box } from '@chakra-ui/react';
+
+export const StatusBar = () => {
+  return (
+    <Flex
+      h="28px"
+      bg="gray.950"
+      borderTop="1px solid"
+      borderColor="green.900"
+      align="center"
+      px={4}
+      justify="space-between"
+      fontFamily="'JetBrains Mono', monospace"
+      fontSize="11px"
+      color="green.500"
+      css={{
+        boxShadow: 'inset 0 1px 0 rgba(0,255,0,0.1)'
+      }}
+    >
+      <Flex gap={6} align="center">
+        <Flex gap={2} align="center">
+          <Box w="6px" h="6px" borderRadius="full" bg="green.400" css={{ animation: 'blink 2s infinite' }} />
+          <Text fontWeight="bold">LUNA_CORE_ONLINE</Text>
+        </Flex>
+        <Text color="gray.500">SESSION: sess_99x</Text>
+        <Text color="gray.500">MEM: 4.2GB / 16GB</Text>
+      </Flex>
+
+      <Flex gap={6}>
+        <Text color="gray.500">{new Date().toISOString()}</Text>
+        <Text>v2.4.1</Text>
+      </Flex>
+    </Flex>
+  );
+};