Forge success label and real progress bar tied to server compile stages.

Replace Dispensed with Forged in the reveal modal, poll builder/progress with indeterminate-until-first-byte UX, and emit interpolated compile progress during long garble builds.

server/internal/builder/build_universal.go

@@ -34,10 +34,17 @@ func (h *Handler) buildUniversalAgent(ctx context.Context, req *BuildRequest, pr
 	platforms := platformsForRequest(req)
 	workerPaths := map[string]string{}
 	total := len(platforms)
+	obfuscated := h.shouldObfuscate(req) && h.garblePath != ""
 	for i, p := range platforms {
-		pct := 14 + (i*56)/total
-		h.setProgress(req.CancelToken, fmt.Sprintf("Compiling %s", p.Label()), pct)
+		startPct := 14 + (i*56)/total
+		endPct := 14 + ((i+1)*56)/total
+		if endPct > 71 {
+			endPct = 71
+		}
+		stage := fmt.Sprintf("Compiling %s", p.Label())
+		stopCompileProgress := h.tickCompileProgress(ctx, req.CancelToken, stage, startPct, endPct, obfuscated)
 		wp, err := h.compileWorker(ctx, agentDir, buildDir, req, buildID, p, req.FusionEnabled)
+		stopCompileProgress()
 		if err != nil {
 			cleanupBuild()
 			return BuildResponse{Success: false, Error: err.Error()}, http.StatusInternalServerError, ""