GUI: allow deleting external peers from client list

gui/app.py

@@ -444,6 +444,27 @@ def peer_delete(peer_id: int):
     return redirect(url_for("index"))
 
 
+@app.post("/peers/delete-by-key")
+def peer_delete_by_key():
+    pk = (request.form.get("public_key") or "").strip()
+    if not pk:
+        flash("Не найден public key", "error")
+        return redirect(url_for("index"))
+
+    try:
+        run(["/usr/local/sbin/wg-peerctl", "remove", "--client-public-key", pk])
+    except Exception:
+        pass
+
+    with db_conn() as conn:
+        cur = conn.cursor()
+        cur.execute("DELETE FROM peers WHERE public_key = ?", (pk,))
+        conn.commit()
+
+    flash("Peer удален", "ok")
+    return redirect(url_for("index"))
+
+
 @app.route("/scripts")
 def scripts():
     commands = {