-

backend/api/main.py

@@ -10,6 +10,7 @@ from pathlib import Path
 from fastapi import BackgroundTasks, FastAPI, HTTPException
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import StreamingResponse
+from fastapi.staticfiles import StaticFiles
 from pydantic import BaseModel, Field
 
 from backend.config.settings import settings
@@ -976,3 +977,9 @@ def submit_rating(req: RatingRequest):
     with open(logs_dir / "ratings.jsonl", "a", encoding="utf-8") as f:
         f.write(json.dumps(entry, ensure_ascii=False) + "\n")
     return {"status": "ok"}
+
+
+# Serve React frontend — must be last so API routes take priority
+_frontend_dist = Path(__file__).parent.parent.parent / "frontend" / "dist"
+if _frontend_dist.exists():
+    app.mount("/", StaticFiles(directory=str(_frontend_dist), html=True), name="static")

frontend/src/hooks/useSensing.ts

@@ -16,7 +16,7 @@ import {
 import { DEFAULT_AIR_TEMPLATES } from "../lib/airTemplates";
 
 const EMA_ALPHA = 0.2;
-const GESTURE_DEBOUNCE_FRAMES = 5;
+const GESTURE_DEBOUNCE_FRAMES = 3;
 const AFFECT_DEBOUNCE_FRAMES = 8;
 
 export function useSensing() {

frontend/src/lib/sensing.ts

@@ -104,19 +104,17 @@ export function classifyGesture(landmarks: Point3D[]): GestureName | null {
   const pinkyTip = p[20];
   const indexMcp = p[5];
 
-  // Require tip to be meaningfully closer to wrist than MCP (0.85×), not just barely under —
-  // prevents borderline pointing poses from satisfying the curl check.
   const fingersCurled = [
     [indexTip, p[5]],
     [middleTip, p[9]],
     [ringTip, p[13]],
-  ].every(([tip, mcp]) => norm3(tip) < norm3(mcp) * 0.85);
+  ].every(([tip, mcp]) => norm3(tip) < norm3(mcp));
 
   // Check POINTING before THUMBS_UP — pointing with a raised thumb would otherwise
   // satisfy fingersCurled on a noisy frame and fire the wrong label first.
   const indexExtended = norm3(indexTip) > norm3(indexMcp) * 1.3;
   const othersCurled = [middleTip, ringTip, pinkyTip].every(
-    (tip) => norm3(tip) < 0.5
+    (tip) => norm3(tip) < 0.7
   );
   if (indexExtended && othersCurled) return "POINTING";