fix: harden push subscription diagnostics

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: bndct-devops

backend/main.py

@@ -217,8 +217,17 @@ async def push_subscribe(request: Request):
     endpoint = body.get("endpoint")
     p256dh = body.get("p256dh")
     auth = body.get("auth")
-    if not all([profile_id, endpoint, p256dh, auth]):
-        return JSONResponse({"detail": "Missing fields"}, status_code=422)
+    missing = [
+        name for name, value in {
+            "profileId": profile_id,
+            "endpoint": endpoint,
+            "p256dh": p256dh,
+            "auth": auth,
+        }.items()
+        if not value
+    ]
+    if missing:
+        return JSONResponse({"detail": "Missing fields", "missing": missing}, status_code=422)
     with Session(engine) as session:
         existing = session.exec(
             select(PushSubscription).where(PushSubscription.profile_id == profile_id)
@@ -1254,4 +1263,3 @@ def _workout_out(w: Workout, sets: list) -> schemas.WorkoutOut:
 
 if __name__ == '__main__':
     uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)
-

frontend/src/api.js

@@ -312,14 +312,24 @@ export async function subscribePush(profileId) {
     const json = sub.toJSON()
     const p256dhKey = sub.getKey?.('p256dh')
     const authKey = sub.getKey?.('auth')
+    const endpoint = sub.endpoint || json.endpoint
     const p256dh = p256dhKey ? bytesToBase64Url(new Uint8Array(p256dhKey)) : json.keys?.p256dh
     const auth = authKey ? bytesToBase64Url(new Uint8Array(authKey)) : json.keys?.auth
+    if (!profileId || !endpoint || !p256dh || !auth) {
+      console.warn('[push] subscription payload missing fields', {
+        hasProfileId: Boolean(profileId),
+        hasEndpoint: Boolean(endpoint),
+        hasP256dh: Boolean(p256dh),
+        hasAuth: Boolean(auth),
+      })
+      return false
+    }
     const res = await authFetch(base + '/api/push/subscribe', {
       method: 'POST',
       headers: { 'Content-Type': 'application/json' },
       body: JSON.stringify({
         profileId,
-        endpoint: json.endpoint,
+        endpoint,
         p256dh,
         auth,
       }),