CS: “These two interpretations are related”
Who said? They could very easily be two different interpretations of the same possuk. But aside from that, where is the Yerushalmi on that possuk that it refers to Mashiach? I did a search and I could not find it.
Re my claims about the yichus of the Maharal, for which you (fairly!) requested sources: as it seems we are not allowed to post links here, I will do the best I can to send you to the source. If you go to hebrewbooks and find book number 26654 (צפונות שנה ג גלון יד) there on pages 70 and 71 there is a discussion about the Maharal’s yichus, with the author concluding that there is no source that the Maharal was descended from David Hamelech, and that some of the alleged sources are in fact clearly fictional.