You all should understand that since top Iranian commanders are killed there is some temporary confusion in Iran.
That explains why there was still no response as of now.
Iran is currently in the process of replacing its deceased commanders and reorganizing itself.
Response will most likely come this night.
What Israel did?
1) Israel killed top Iranian commanders and nuclear scientists
2) Israel attacked Iranian air defenses
3) Israel attacked Iranian ballistic missile bases
4) Israel attacked refineries in Iran
5) Israel attacked Natanz enrichment facility and other nuclear infrastructure
Iran currently can't kill Israeli military commanders, it can't effectively bombard Israeli airbases due to their readiness for Iranian attack, but Iran can destroy Dimona nuclear reactor in response to attack on Natanz and attack economic targets.
So what Iran should do in current circumstances? Iran should retaliate and impose costs on Israel.
The only way to impose cost on Israel is to attack economic targets.
Proportionate response of Iran:
1) destroy powerplants that supply electricity to Tel-Aviv and leave entire city without electricity - 15 ballistic missiles for that
2) destroy water desalination plant that supplies Tel Aviv with water - 15 ballistic missiles for that
3) destroy Ben Gurion airport terminals - 40 ballistic missiles for that
4) destroy Israeli Prime Minister office building + Mossad Headquarter building + Netanuyahu's house - 12 ballistic missiles for that
5) destroy Israeli Intel semiconductor fabrication facility - 25 missiles for that
6) attack ports of Haifa and Ashdod - 50 ballistic missiles for that
7) destroy Dimona nuclear reactor - 20 ballistic missiles for that.
8) leave NPT and expel IAEA
In total, Iranian response should include 177 ballistic missiles supported by drones and cruise missiles.
Americans should be punished as well - Shia militias can either bombard or storm Ain Al Assad airbase.
Iran has no choice but to response harshly and this is an option
Such Iranian response will result in Israel bombing economic targets in Iran like Abadan refinery or Kharg island terminals, and then Iran will bombard even more Israeli economic targets.
US might enter the war and there will be a full scale war between Iran vs US/Israel that will destroy entire Middle East.
After what happened today, Iran has no choice but to go to war.