>Pali canon explicitly says Chitta is its own end
>No it doesn't. Quote me a sutta.
Pati-A 2.478 “The sovereign-mind which is its own support (an-without + a’rammana=support) means the sovereign-mind is the foundation”. Dh-A 4.26 “Ones own mind is the foundation of the Soul”. MN-A 2.297 “Nibbana is the foundation, that being the emancipated-mind (citta)”. Sn-A 2.583 “Emancipation is meant the foundation, that being the establishment of the emancipated mind”. Theragatha-A 1.138 “Supramundane samadhi is the foundation of Nibbana, that being the exceedingly quelled mind (citta)”
AN 1.124] “What, followers, is a being who has a diamond-mind (vajiru’pamacitto)? That one who has destroyed the taints (asavas) and has both a liberated mind (citta) and is liberated by wisdom. Just as there is nothing which a diamond cannot cut, be it stone or gem; so to is one with a diamond-mind who has destroyed the taints and has both a liberated mind (citta) and is liberated by wisdom. This is one who possesses a diamond-mind.”
MN 1.197 “Followers, the (The Noble Path) is not lived for sake of gains, honors, or acclaim; nor is it lived for virtuousness, nor for absorptions, nor for gnosis and insight. This Brahma life is lived for the sole preeminent purpose of emancipation of the mind alone, which is the quintessential final core”. [MN 1.301] “What is samadhi (the culmination of the entire Aryan path) for? Samadhi, friend, is for making the mind (citta) sovereign”
MN 1.279 “When his steadfast mind was perfectly purified, perfectly illumined, stainless, utterly perfect, pliable, sturdy, fixed, and everlastingly determinate then he directs his mind towards the gnosis of the destruction of defilements. Knowing thus and seeing thus his mind is emancipated from sensual desires, his mind is emancipated from becoming, his mind is emancipated from ignorance.”
DN 2.49. “How is it that one is called a ‘Buddha’?...gnosis that the mind (citta) is purified (visuddham)…such is how one is deemed a ‘Buddha’.” [MN 2.144] [AN 1.6] "I do not have, followers, insight into anything or any dharma which, when made to become and made to expand that brings greater bliss than the mind (citta). The mind, followers, when made to become and made to expand, brings the greatest bliss."