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, 20 deletions

diff --git a/vendor/bytes/tests/test_serde.rs b/vendor/bytes/tests/test_serde.rs
deleted file mode 100644
index cf4aeffa..00000000
--- a/vendor/bytes/tests/test_serde.rs
+++ /dev/null
@@ -1,20 +0,0 @@
-#![cfg(feature = "serde")]
-#![warn(rust_2018_idioms)]
-
-use serde_test::{assert_tokens, Token};
-
-#[test]
-fn test_ser_de_empty() {
-    let b = bytes::Bytes::new();
-    assert_tokens(&b, &[Token::Bytes(b"")]);
-    let b = bytes::BytesMut::with_capacity(0);
-    assert_tokens(&b, &[Token::Bytes(b"")]);
-}
-
-#[test]
-fn test_ser_de() {
-    let b = bytes::Bytes::from(&b"bytes"[..]);
-    assert_tokens(&b, &[Token::Bytes(b"bytes")]);
-    let b = bytes::BytesMut::from(&b"bytes"[..]);
-    assert_tokens(&b, &[Token::Bytes(b"bytes")]);
-}