"I'm trying to find the applicable rules about ceremonies of other religions in Catholic sacred spaces."
Forget Canon Law - read your Bible!!!
Read what God thinks of golden calves, high places and baal worship - try Exodus, 1&2 Kings and all the Prophets.
Read what God thinks of His people consorting with baal worshippers, and how He raised up Phineas, grandson of Aaron to run the idolaters through their genitals with his spear
Read what God thinks when His temple is desecrated and how He can raise up a man according to His own heart like Judas Maccabeus to hammer the defilers and re-consecrate the temple.
Read the first of the 10 commandments and ask yourself how many prelates even take this one seriously any more.
This is just so obviously evil and contrary to every Catholic sensibility that no-one should need to look this up in the Codex Iuris Canonicus.
If you came home one night and found your wife and daughter being gang-raped by a crazed gang of hells angels, would you really need to look it up in the Code to see if this was permitted somewhere???
Well, excuuuuuuse me!