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, 85 deletions

diff --git a/vendor/hyper-timeout/Cargo.toml b/vendor/hyper-timeout/Cargo.toml
deleted file mode 100644
index 0298a87f..00000000
--- a/vendor/hyper-timeout/Cargo.toml
+++ /dev/null
@@ -1,85 +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 = "2018"
-name = "hyper-timeout"
-version = "0.5.2"
-authors = ["Herman J. Radtke III <herman@hermanradtke.com>"]
-build = false
-autobins = false
-autoexamples = false
-autotests = false
-autobenches = false
-description = "A connect, read and write timeout aware connector to be used with hyper Client."
-homepage = "https://github.com/hjr3/hyper-timeout"
-documentation = "https://github.com/hjr3/hyper-timeout"
-readme = "README.md"
-license = "MIT OR Apache-2.0"
-repository = "https://github.com/hjr3/hyper-timeout"
-
-[lib]
-name = "hyper_timeout"
-path = "src/lib.rs"
-
-[[example]]
-name = "client"
-path = "examples/client.rs"
-
-[[test]]
-name = "client_upload"
-path = "tests/client_upload.rs"
-
-[dependencies.hyper]
-version = "1.1"
-
-[dependencies.hyper-util]
-version = "0.1.10"
-features = [
-    "client-legacy",
-    "http1",
-]
-
-[dependencies.pin-project-lite]
-version = "0.2"
-
-[dependencies.tokio]
-version = "1.35"
-
-[dependencies.tower-service]
-version = "0.3"
-
-[dev-dependencies.http-body-util]
-version = "0.1"
-
-[dev-dependencies.hyper]
-version = "1.1"
-features = ["http1"]
-
-[dev-dependencies.hyper-tls]
-version = "0.6"
-
-[dev-dependencies.hyper-util]
-version = "0.1.10"
-features = [
-    "client-legacy",
-    "http1",
-    "server",
-    "server-graceful",
-]
-
-[dev-dependencies.tokio]
-version = "1.35"
-features = [
-    "io-std",
-    "io-util",
-    "macros",
-]