cleanup: clean up docs/ directory and consent source files

kernel/src/Api/Syscall.hpp

@@ -352,9 +352,7 @@ namespace montauk::abi {
     /* Storage.hpp */
     static constexpr uint64_t SYS_VOLINFO              = 190;  // (VolInfo*, maxCount) -> count, -1 bad pointer
 
-    /* Consent.hpp -- first-use consent prompts (docs/consent.md). Only the
-       session's consent agent (the desktop) may register, drain requests
-       and answer them. */
+    /* Consent.hpp */
     static constexpr uint64_t SYS_CONSENT_REGISTER     = 191;  // () -> 0, -13 lacks CAP_COMPOSITOR, -1 another agent is live
     static constexpr uint64_t SYS_CONSENT_NEXT         = 192;  // (ConsentRequest*) -> 1 delivered, 0 none queued
     static constexpr uint64_t SYS_CONSENT_REPLY        = 193;  // (requestId, CONSENT_ALLOW/DENY) -> 0, -1 stale id