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, 41 deletions

diff --git a/vendor/windows-core/src/scoped_interface.rs b/vendor/windows-core/src/scoped_interface.rs
deleted file mode 100644
index 5a701e8c..00000000
--- a/vendor/windows-core/src/scoped_interface.rs
+++ /dev/null
@@ -1,41 +0,0 @@
-use super::*;
-use core::ffi::c_void;
-use core::marker::PhantomData;
-
-#[doc(hidden)]
-#[repr(C)]
-pub struct ScopedHeap {
-    pub vtable: *const c_void,
-    pub this: *const c_void,
-}
-
-#[doc(hidden)]
-pub struct ScopedInterface<'a, T: Interface> {
-    interface: T,
-    lifetime: PhantomData<&'a T>,
-}
-
-impl<T: Interface> ScopedInterface<'_, T> {
-    pub fn new(interface: T) -> Self {
-        Self {
-            interface,
-            lifetime: PhantomData,
-        }
-    }
-}
-
-impl<T: Interface> core::ops::Deref for ScopedInterface<'_, T> {
-    type Target = T;
-
-    fn deref(&self) -> &T {
-        &self.interface
-    }
-}
-
-impl<T: Interface> Drop for ScopedInterface<'_, T> {
-    fn drop(&mut self) {
-        unsafe {
-            let _ = Box::from_raw(self.interface.as_raw() as *const _ as *mut ScopedHeap);
-        }
-    }
-}