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, 11 deletions

diff --git a/vendor/bit-vec/crusader.sh b/vendor/bit-vec/crusader.sh
deleted file mode 100755
index 8becfed7..00000000
--- a/vendor/bit-vec/crusader.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/bin/bash
-
-git clone https://github.com/brson/cargo-crusader
-cd cargo-crusader
-cargo build --release
-export PATH=$PATH:`pwd`/target/release/
-cd ../
-
-cargo crusader
-
-exit