feat: migrate from Cedar to SpiceDB authorization system

This is a major architectural change that replaces the Cedar policy-based
authorization system with SpiceDB's relation-based authorization.

Key changes:

- Migrate from Rust to Go implementation
- Replace Cedar policies with SpiceDB schema and relationships
- Switch from envoy `ext_authz` with Cedar to SpiceDB permission checks
- Update build system and dependencies for Go ecosystem
- Maintain Envoy integration for external authorization

This change enables more flexible permission modeling through SpiceDB's
Google Zanzibar inspired relation-based system, supporting complex
hierarchical permissions that were difficult to express in Cedar.

Breaking change: Existing Cedar policies and Rust-based configuration
will no longer work and need to be migrated to SpiceDB schema.

1 files changed, 0 insertions, 76 deletions

diff --git a/vendor/windows-core/src/param.rs b/vendor/windows-core/src/param.rs
deleted file mode 100644
index 5ebf3add..00000000
--- a/vendor/windows-core/src/param.rs
+++ /dev/null
@@ -1,76 +0,0 @@
-use super::*;
-use core::mem::transmute_copy;
-use core::mem::zeroed;
-
-/// Provides automatic parameter conversion in cases where the Windows API expects implicit conversion support.
-///
-/// There is no need to implement this trait. Blanket implementations are provided for all applicable Windows types.
-pub trait Param<T: TypeKind, C = <T as TypeKind>::TypeKind>: Sized
-where
-    T: Type<T>,
-{
-    #[doc(hidden)]
-    unsafe fn param(self) -> ParamValue<T>;
-}
-
-impl<T> Param<T> for Option<&T>
-where
-    T: Type<T>,
-{
-    unsafe fn param(self) -> ParamValue<T> {
-        unsafe {
-            ParamValue::Borrowed(match self {
-                Some(item) => transmute_copy(item),
-                None => zeroed(),
-            })
-        }
-    }
-}
-
-impl<T> Param<T> for InterfaceRef<'_, T>
-where
-    T: Type<T>,
-{
-    unsafe fn param(self) -> ParamValue<T> {
-        unsafe { ParamValue::Borrowed(transmute_copy(&self)) }
-    }
-}
-
-impl<T, U> Param<T, InterfaceType> for &U
-where
-    T: TypeKind<TypeKind = InterfaceType> + Clone,
-    T: Interface,
-    U: Interface,
-    U: imp::CanInto<T>,
-{
-    unsafe fn param(self) -> ParamValue<T> {
-        unsafe {
-            if U::QUERY {
-                self.cast()
-                    .map_or(ParamValue::Borrowed(zeroed()), |ok| ParamValue::Owned(ok))
-            } else {
-                ParamValue::Borrowed(transmute_copy(self))
-            }
-        }
-    }
-}
-
-impl<T> Param<T, CloneType> for &T
-where
-    T: TypeKind<TypeKind = CloneType> + Clone,
-{
-    unsafe fn param(self) -> ParamValue<T> {
-        unsafe { ParamValue::Borrowed(transmute_copy(self)) }
-    }
-}
-
-impl<T, U> Param<T, CopyType> for U
-where
-    T: TypeKind<TypeKind = CopyType> + Clone,
-    U: TypeKind<TypeKind = CopyType> + Clone,
-    U: imp::CanInto<T>,
-{
-    unsafe fn param(self) -> ParamValue<T> {
-        unsafe { ParamValue::Owned(transmute_copy(&self)) }
-    }
-}