I'm currently travelling and not exactly able to look at this stuff in detail yet, but at a glance most of it seems fine. The stuff I have to say might be (even more of) a ramble as a result.
TLDR: Durability Negation can be noted for Ainur profiles that aren't basic Maiar as they can directly attack or influence the soul. But the given example is Fear Manipulation.
At least Extraordinary Genius is 100% fine and Supergenius seems viable to me. Nigh-omniscience for Mandos is good and Manwë could scale to that as the most knowledgeable Vala and can also get knowledge from the omniscient Eru.
Regarding
Durability Negation, the Soul Manipulation of the Ainur bypasses physical durability anyway (although this could be noted in AP since they can attack souls directly) and the specific given example is
Fear Manipulation. Morgoth and later Sauron can chase out the soul via fear.
Intelligence is a topic that needs covering in detail (Aragorn for example is a brilliant statesman, warrior, healer, ruler, etc. Could qualify for genius), the Wise in LotR for instance (Galadriel, Gandalf, Elrond, etc) have the ability to predict the future due to their intelligence, something which is Extraordinary Genius.
- "Minds that have great knowledge of the past, the present, and the nature of Eä may predict with great accuracy, and the nearer the future the clearer (saving always the freedom of Eru). Much therefore of what is called “foresight” in careless speech is only the deduction of the wise; and if it be received, as warning or instruction, from the Valar, it may be only deduction of the wiser, though it may sometimes be “foresight” at second hand." - The Nature of Middle-Earth: Footnotes, Part Two, IX Ósanwe-kenta
The Valar are curious. As Ainur, they can see the past in its entirety completely and have knowledge of the future. They also have complete knowledge of their "material"/concepts as its creators.
- "Not only had they enormously greater force of will, scope of mind, and subtlety of skill, but they had complete understanding of the erma and of the structure of its variations, since they had themselves (under Eru) designed and brought about these variations, and their combinations." - The Nature of Middle-Earth: Power of the Valar
This is individual however, and so each Ainu has absolute knowledge of the concepts they made or are tied to
- "Or rather, among them all such knowledge was to be found; for individually they had possessed from their own creation, and had shown in their assistance in the designing of Eä, different talents, and each of them possessed some skill or knowledge of his or her own."- The Nature of Middle-Earth: Power of the Valar
- Indeed, Manwë is said to retain so much knowledge he is practically in line with Eru's mind while some are just experts of birds - "Knowledge of the Story as it was when composed, before realization, gave them their measure of fore-knowledge; the amount varied very much, from the fairly complete knowledge of the mind of the Creator in this matter possessed by Manwë, the 'Elder King', to that of lesser spirits who might have been interested only in some subsidiary matter (such as trees or birds)." - Letter 200
Collectively, the Ainur are Nigh-Omniscient in regard to knowledge of creation (outside the Children + their free-will, aka Elves, Humans, etc) but individually they are just immensely intelligent on their specific subjects. They are at least Extraordinary Genius due to being wiser and more intelligent than "The Wise" of LotR and could qualify for Supergenius given their knowledge of concepts that logically spans the entire universe, at least for some like Varda (as the material/concept they created encompasses the whole of Eä).
Mandos seems fine as nigh-omniscient. Manwë is also the most knowledgeable of the Valar, being able to directly contact Eru (kinda)
- "It is said that of the Valar Manwë had the greatest knowledge, so that no lore or arts of any of the others were to him a mystery; but that he had less desire to make things of his own, great or small; and under the cares of the Kingship of Arda the desire ceased, for his mind and heart were given rather to healing and restoration."- The Nature of Middle-Earth: Power of the Valar
- "Pengolodh adds: “Some say that Manwë, by a special grace to the King, could still in a measure perceive Eru; others more probably, that he remained nearest to Eru, and Eru was most ready to hear and answer him”." - The Nature of Middle-Earth: Footnotes, Part Two, IX Ósanwe-kenta - at least according to Pengolodh, the in-universe First Age Elvish Loremaster who "covers" a lot of the stuff in the notes of Tolkien... well if he was still retained.
Manwë may or may not thus be liable for a certain degree of "Omniscience" given Eru can give him knowledge, but that depends on Eru's decisions. As the most knowledgeable of the Valar he might also be nigh-omniscient like Mandos otherwise, something that is assisted by him understanding Eru's will the best.
- "Nay, Manwë was wiser; or being ever open to Eru he did His will, which is more than wisdom. He was ever open because he had nothing to conceal, no thought that it was harmful for any to know, if they could comprehend it. Indeed Melkor knew his will without questioning it; and he knew that Manwë was bound by the commands and injunctions of Eru, and would do this or abstain from that in accordance with them, always, even knowing that Melkor would break them as it suited his purpose." - The Nature of Middle-Earth: Part Two, IX Ósanwe-kenta
- The way he receives Eru's knowledge is left somewhat speculative as either a conversation or via prayer and communion - "[The Valar] remained in direct contact with Eru, though they, as far as the legends go, usually “addressed” Him through Manwë the Elder King. No doubt these legends are somatomorphic [1] (sc. almost as anthropomorphic as are our own legends or imagination), and most Elves, when speaking of Manwë appealing to Eru or having converse with Him, imagined him as a figure, even more majestic than one of their own ancient kings, standing in attitude of prayer or supplication to the Valar."- The Nature of Middle-Earth: Part Two, XII The Knowledge of the Valar.