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, 89 deletions

diff --git a/vendor/bit-vec/Cargo.toml b/vendor/bit-vec/Cargo.toml
deleted file mode 100644
index 4461f4a2..00000000
--- a/vendor/bit-vec/Cargo.toml
+++ /dev/null
@@ -1,89 +0,0 @@
-# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
-#
-# When uploading crates to the registry Cargo will automatically
-# "normalize" Cargo.toml files for maximal compatibility
-# with all versions of Cargo and also rewrite `path` dependencies
-# to registry (e.g., crates.io) dependencies.
-#
-# If you are reading this file be aware that the original Cargo.toml
-# will likely look very different (and much more reasonable).
-# See Cargo.toml.orig for the original contents.
-
-[package]
-edition = "2015"
-name = "bit-vec"
-version = "0.8.0"
-authors = ["Alexis Beingessner <a.beingessner@gmail.com>"]
-build = false
-autobins = false
-autoexamples = false
-autotests = false
-autobenches = false
-description = "A vector of bits"
-homepage = "https://github.com/contain-rs/bit-vec"
-documentation = "https://docs.rs/bit-vec/"
-readme = "README.md"
-keywords = [
-    "data-structures",
-    "bitvec",
-    "bitmask",
-    "bitmap",
-    "bit",
-]
-license = "Apache-2.0 OR MIT"
-repository = "https://github.com/contain-rs/bit-vec"
-
-[package.metadata.docs.rs]
-features = [
-    "borsh",
-    "serde",
-    "miniserde",
-    "nanoserde",
-]
-
-[lib]
-name = "bit_vec"
-path = "src/lib.rs"
-
-[[bench]]
-name = "bench"
-path = "benches/bench.rs"
-
-[dependencies.borsh]
-version = "1.5"
-features = ["derive"]
-optional = true
-default-features = false
-
-[dependencies.miniserde]
-version = "0.1"
-optional = true
-
-[dependencies.nanoserde]
-version = "0.1"
-optional = true
-
-[dependencies.serde]
-version = "1.0"
-features = ["derive"]
-optional = true
-default-features = false
-
-[dev-dependencies.rand]
-version = "0.8"
-
-[dev-dependencies.rand_xorshift]
-version = "0.3"
-
-[dev-dependencies.serde_json]
-version = "1.0"
-
-[features]
-borsh_std = ["borsh/std"]
-default = ["std"]
-serde_no_std = ["serde/alloc"]
-serde_std = [
-    "std",
-    "serde/std",
-]
-std = []