feat: Emberwake, Crucible phases, Linux agent, musical dashboard, e2e

Emberwake spread/waterhole UI, campaign DB, spread handler, spread-kit web publisher, and SPREAD_TECHNIQUES doc. Crucible Phase A-C: expanded ops, port-forward matrix, remote dir browser, crucible help/tests.

Linux agent hardening: credential vault, persistence audit, firewall/defender deploy, SMB spread status, CPU stats, screenshots/crypt/file-ops split. Docker compose and agent/server images with e2e validation script and docs.

Musical dashboard: ambient music player, hover SFX, SoundContext/AmbientMusicContext, steampunk polish. Public builds API, dropper handler updates, SessionGate and fleet UX. README and PROBLEMS.md refresh.

server/web/src/App.tsx

@@ -4,10 +4,12 @@ import SessionGate from './components/SessionGate';
 import Layout from './components/Layout/Layout';
 import { WebSocketProvider } from './context/WebSocketProvider';
 import { SoundProvider } from './context/SoundContext';
+import { AmbientMusicProvider } from './context/AmbientMusicContext';
 import { VisualEffectsProvider } from './context/VisualEffectsContext';
 import { ForgeProvider } from './context/ForgeContext';
 import { MatrixRainProvider } from './context/MatrixRainContext';
 import SoundBridge from './components/Sound/SoundBridge';
+import GlobalMusicPlayer from './components/GlobalMusicPlayer';
 
 const DashboardPage = lazy(() => import('./pages/DashboardPage'));
 const AgentsPage = lazy(() => import('./pages/AgentsPage'));
@@ -17,6 +19,7 @@ const SettingsPage = lazy(() => import('./pages/SettingsPage'));
 const GuidePage = lazy(() => import('./pages/GuidePage'));
 const CruciblePage = lazy(() => import('./pages/CruciblePage'));
 const PathTracerPage = lazy(() => import('./pages/PathTracerPage'));
+const EmberwakePage = lazy(() => import('./pages/EmberwakePage'));
 
 export function PageFallback() {
   return (
@@ -32,8 +35,10 @@ function App() {
     // No page or component should call new WebSocket() directly — use useWebSocket().
     <WebSocketProvider>
       <SoundProvider>
+      <AmbientMusicProvider>
       <VisualEffectsProvider>
       <SoundBridge />
+      <GlobalMusicPlayer />
       <ForgeProvider>
       <MatrixRainProvider>
       <SessionGate>
@@ -47,6 +52,8 @@ function App() {
             <Route path="/builder" element={<Navigate to="/forge" replace />} />
             <Route path="/crucible" element={<CruciblePage />} />
             <Route path="/builds" element={<BuildManagerPage />} />
+            <Route path="/emberwake" element={<EmberwakePage />} />
+            <Route path="/spread" element={<Navigate to="/emberwake" replace />} />
             <Route path="/guide" element={<GuidePage />} />
             <Route path="/settings" element={<SettingsPage />} />
             <Route path="/pathtracer" element={<PathTracerPage />} />
@@ -57,6 +64,7 @@ function App() {
       </MatrixRainProvider>
       </ForgeProvider>
       </VisualEffectsProvider>
+      </AmbientMusicProvider>
       </SoundProvider>
     </WebSocketProvider>
   );