events: accept client-fail + play-probe types (was 422)

The diagnostic beacons were rejected server-side (only 'error' was
whitelisted) — which is why the iPhone's fingerprint never arrived.
Now: error / client-fail / play-probe accepted, payload fields
forwarded; anything else still 422.

server/app.py

@@ -282,14 +282,15 @@ def api_searches_post(item: dict = Body(...), request: Request = None):
 
 @app.post("/api/events")
 def api_events(evt: dict = Body(...), request: Request = None):
-    # client-reported events; only 'error' is accepted (playback failures
-    # happen in the browser, not in the request log)
-    if evt.get("type") != "error":
+    # client-reported events; the diagnostics the browser can uniquely see
+    # (playback failures, capability probes) happen client-side, not in the
+    # request log — so the phone reports them here
+    if evt.get("type") not in ("error", "client-fail", "play-probe"):
         raise HTTPException(422, "unknown event type")
     c = db.connect()
-    db.event(c, request.state.user, "error",
-             {k: evt[k] for k in ("ep_id", "ep", "lang") if k in evt}
-             | {"detail": str(evt.get("detail", ""))[:200]})
+    db.event(c, request.state.user, evt["type"],
+             {k: evt[k] for k in ("ep_id", "ep", "lang", "msg", "detail",
+                                  "jsv", "branch", "hls_lib", "mse", "native_hls", "ua") if k in evt})
     c.commit()
     c.close()
     return {"ok": True}