Use default Wails asset handler + GetStoredConfig binding

- Remove custom asset handler — it broke Wails IPC routing
- Use application.AssetFileServerFS(distFS) so Wails serves its own runtime
- Add GetStoredConfig binding: SPA calls it on startup to retrieve keychain config
- main.ts: loadDesktopConfig() fetches stored creds before mounting
- Remove runtime.js embed (Wails serves it internally)

cmd/desktop/main.go

@@ -31,17 +31,14 @@ var assets embed.FS
 //go:embed icon.png
 var iconPNG []byte
 
-//go:embed runtime.js
-var runtimeJS []byte
-
 const (
-	keyringService = "com.hubris.oikos-desktop"
-	keyringUser    = "oikos"
-	version        = "0.1.0"
-	updateURL      = "https://git.hubris.network/api/v1/repos/dtoro/oikos/releases"
-	pollInterval   = 30 * time.Second
-	updateInterval = 6 * time.Hour
-	oidcCallbackPort = 18901
+	keyringService    = "com.hubris.oikos-desktop"
+	keyringUser       = "oikos"
+	version           = "0.1.0"
+	updateURL         = "https://git.hubris.network/api/v1/repos/dtoro/oikos/releases"
+	pollInterval      = 30 * time.Second
+	updateInterval    = 6 * time.Hour
+	oidcCallbackPort  = 18901
 )
 
 type OikosConfig struct {
@@ -66,6 +63,10 @@ func (c *ConfigService) ClearConfig() error {
 	return keyring.Delete(keyringService, keyringUser)
 }
 
+func (c *ConfigService) GetStoredConfig() *OikosConfig {
+	return loadConfig()
+}
+
 func (c *ConfigService) EnableAutoStart() error {
 	if runtime.GOOS != "darwin" {
 		return fmt.Errorf("autostart not supported on %s", runtime.GOOS)
@@ -104,9 +105,6 @@ func (c *ConfigService) DisableAutoStart() error {
 	return os.Remove(path)
 }
 
-// StartOIDCLogin opens the system browser for Authentik login and returns
-// the access token. The desktop app hosts a local HTTP server on a fixed
-// port to receive the OIDC callback directly (no copy-paste).
 func (c *ConfigService) StartOIDCLogin(apiUrl string) (string, error) {
 	apiUrl = strings.TrimRight(apiUrl, "/")
 
@@ -321,46 +319,6 @@ func loadConfig() *OikosConfig {
 	return &cfg
 }
 
-// ---- Asset handler ----
-
-func newAssetHandler(cfg *OikosConfig) http.Handler {
-	distFS, err := fs.Sub(assets, "frontend/dist")
-	if err != nil {
-		log.Fatalf("embedded assets: %v", err)
-	}
-
-	fallback := http.FileServer(http.FS(distFS))
-
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		path := r.URL.Path
-
-		if path == "/wails/runtime.js" {
-			w.Header().Set("Content-Type", "application/javascript")
-			w.Write(runtimeJS)
-			return
-		}
-
-		if path == "/" || path == "/index.html" {
-			data, err := fs.ReadFile(distFS, "index.html")
-			if err != nil {
-				fallback.ServeHTTP(w, r)
-				return
-			}
-			html := string(data)
-			if cfg != nil {
-				configJSON, _ := json.Marshal(cfg)
-				placeholder := `<script>window.__OIKOS_CONFIG__ = {};</script>`
-				injected := fmt.Sprintf(`<script>window.__OIKOS_CONFIG__ = %s;</script>`, configJSON)
-				html = strings.ReplaceAll(html, placeholder, injected)
-			}
-			w.Header().Set("Content-Type", "text/html; charset=utf-8")
-			w.Write([]byte(html))
-			return
-		}
-		fallback.ServeHTTP(w, r)
-	})
-}
-
 // ---- Notifications ----
 
 type dashboardSummary struct {
@@ -483,7 +441,10 @@ func checkUpdates() {
 // ---- Main ----
 
 func main() {
-	cfg := loadConfig()
+	distFS, err := fs.Sub(assets, "frontend/dist")
+	if err != nil {
+		log.Fatalf("embedded assets: %v", err)
+	}
 
 	app := application.New(application.Options{
 		Name:        "Oikos",
@@ -492,14 +453,13 @@ func main() {
 			application.NewService(&ConfigService{}),
 		},
 		Assets: application.AssetOptions{
-			Handler: newAssetHandler(cfg),
+			Handler: application.AssetFileServerFS(distFS),
 		},
 		Mac: application.MacOptions{
 			ApplicationShouldTerminateAfterLastWindowClosed: false,
 		},
 	})
 
-	// --- System tray ---
 	systemTray := app.SystemTray.New()
 	systemTray.SetLabel("Oikos")
 	systemTray.SetTooltip("Oikos")
@@ -523,7 +483,6 @@ func main() {
 	})
 	systemTray.SetMenu(trayMenu)
 
-	// --- Main window ---
 	ws := loadWindowState()
 	width, height := 1400, 900
 	minWidth, minHeight := 1024, 700
@@ -552,10 +511,10 @@ func main() {
 		saveWindowState(window)
 	})
 
-	go pollDashboard(cfg)
+	go pollDashboard(loadConfig())
 	go checkUpdates()
 
-	err := app.Run()
+	err = app.Run()
 	if err != nil {
 		log.Fatal(err)
 	}