feat: implement web mode for process detail fetching and management, enhance server routing for SPA

frontend/src/App.tsx

@@ -5,6 +5,13 @@ import { Card, CardHeader, CardTitle, CardContent } from '@/components/ui/card'
 import { Progress } from '@/components/ui/progress'
 import { cn } from '@/lib/utils'
 
+// Detect if running inside Wails desktop or as a standalone web app
+const isWeb = !(window as any).__wails_ipc_active &&
+  typeof (window as any)['go'] === 'undefined'
+
+// Base URL for web mode: same origin as the page
+const apiBase = `${window.location.protocol}//${window.location.host}`
+
 // ---------------------------------------------------------------------------
 // Types
 // ---------------------------------------------------------------------------
@@ -188,8 +195,9 @@ function ProcessDetailPanel({
 
   const load = useCallback(async () => {
     try {
-      // Use low-level Wails IPC — binding will be regenerated automatically
-      const d = await (window as any)['go']['main']['App']['GetProcessDetail'](pid) as ProcessDetail
+      const d: ProcessDetail = isWeb
+        ? await fetch(`${apiBase}/api/process/${pid}`).then(r => { if (!r.ok) throw new Error(); return r.json() })
+        : await (window as any)['go']['main']['App']['GetProcessDetail'](pid) as ProcessDetail
       setDetail(d)
     } catch {
       setDetail(null)
@@ -208,7 +216,12 @@ function ProcessDetailPanel({
     setKilling(true)
     setKillError(null)
     try {
-      await (window as any)['go']['main']['App']['KillProcess'](pid, force)
+      if (isWeb) {
+        const res = await fetch(`${apiBase}/api/process/${pid}/kill${force ? '?force=true' : ''}`, { method: 'POST' })
+        if (!res.ok) throw new Error(await res.text())
+      } else {
+        await (window as any)['go']['main']['App']['KillProcess'](pid, force)
+      }
       // stop refreshing — process is gone
       if (intervalRef.current) clearInterval(intervalRef.current)
       onClose()
@@ -231,10 +244,18 @@ function ProcessDetailPanel({
     lastManNameRef.current = detail.name
     setManPageLoading(true)
     setManPage(null)
-    ;(window as any)['go']['main']['App']['GetManPage'](detail.name)
-      .then((text: string) => { setManPage(text || null) })
-      .catch(() => setManPage(null))
-      .finally(() => setManPageLoading(false))
+    if (isWeb) {
+      fetch(`${apiBase}/api/man/${encodeURIComponent(detail.name)}`)
+        .then(r => r.ok ? r.text() : Promise.reject())
+        .then(text => setManPage(text || null))
+        .catch(() => setManPage(null))
+        .finally(() => setManPageLoading(false))
+    } else {
+      ;(window as any)['go']['main']['App']['GetManPage'](detail.name)
+        .then((text: string) => { setManPage(text || null) })
+        .catch(() => setManPage(null))
+        .finally(() => setManPageLoading(false))
+    }
   }, [detail?.name])
 
   return (
@@ -541,6 +562,15 @@ export default function App() {
   const [pageSize, setPageSize] = useState(20)
 
   useEffect(() => {
+    if (isWeb) {
+      // Web mode: connect to SSE stream
+      const es = new EventSource(`${apiBase}/api/metrics/stream`)
+      es.onmessage = (e) => {
+        try { setMetrics(JSON.parse(e.data) as Metrics) } catch {}
+      }
+      return () => es.close()
+    }
+    // Wails desktop mode: listen to pushed events
     const handler = (m: Metrics) => setMetrics(m)
     EventsOn('metrics', handler)
     return () => EventsOff('metrics')

server.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"io/fs"
 	"net/http"
 	"os"
 	"os/signal"
@@ -19,6 +20,14 @@ func runServer(port int) {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
+	// Serve embedded frontend/dist at /
+	distFS, err := fs.Sub(assets, "frontend/dist")
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "failed to load embedded assets: %v\n", err)
+		os.Exit(1)
+	}
+	fileServer := http.FileServer(http.FS(distFS))
+
 	streamSys := backend.NewSysInfoHeadless(ctx)
 
 	mux := http.NewServeMux()
@@ -148,6 +157,19 @@ func runServer(port int) {
 	fmt.Printf("  GET  /api/man/<name>           — manual page for a command\n")
 	fmt.Println("\nPress Ctrl+C to stop.")
 
+	// Fallback: serve index.html for any non-API, non-file route (SPA)
+	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		// Try to serve the exact file from dist; if it doesn't exist, serve index.html
+		_, err := distFS.Open(strings.TrimPrefix(r.URL.Path, "/"))
+		if err != nil || r.URL.Path == "/" {
+			r2 := r.Clone(r.Context())
+			r2.URL.Path = "/"
+			fileServer.ServeHTTP(w, r2)
+			return
+		}
+		fileServer.ServeHTTP(w, r)
+	})
+
 	srv := &http.Server{
 		Addr:         addr,
 		Handler:      mux,