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, 243 deletions

diff --git a/vendor/hyper/Cargo.toml b/vendor/hyper/Cargo.toml
deleted file mode 100644
index 7d0ea3a8..00000000
--- a/vendor/hyper/Cargo.toml
+++ /dev/null
@@ -1,243 +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 = "2021"
-rust-version = "1.63"
-name = "hyper"
-version = "1.6.0"
-authors = ["Sean McArthur <sean@seanmonstar.com>"]
-build = false
-include = [
-    "Cargo.toml",
-    "LICENSE",
-    "src/**/*",
-]
-autolib = false
-autobins = false
-autoexamples = false
-autotests = false
-autobenches = false
-description = "A protective and efficient HTTP library for all."
-homepage = "https://hyper.rs"
-documentation = "https://docs.rs/hyper"
-readme = "README.md"
-keywords = [
-    "http",
-    "hyper",
-    "hyperium",
-]
-categories = [
-    "network-programming",
-    "web-programming::http-client",
-    "web-programming::http-server",
-]
-license = "MIT"
-repository = "https://github.com/hyperium/hyper"
-
-[package.metadata.capi.header]
-generation = false
-subdirectory = false
-
-[[package.metadata.capi.install.include.asset]]
-from = "capi/include/hyper.h"
-
-[package.metadata.docs.rs]
-features = [
-    "ffi",
-    "full",
-    "tracing",
-]
-rustdoc-args = [
-    "--cfg",
-    "hyper_unstable_ffi",
-    "--cfg",
-    "hyper_unstable_tracing",
-]
-
-[package.metadata.playground]
-features = ["full"]
-
-[features]
-capi = []
-client = [
-    "dep:want",
-    "dep:pin-project-lite",
-    "dep:smallvec",
-]
-default = []
-ffi = [
-    "dep:http-body-util",
-    "futures-util?/alloc",
-]
-full = [
-    "client",
-    "http1",
-    "http2",
-    "server",
-]
-http1 = [
-    "dep:futures-channel",
-    "dep:futures-util",
-    "dep:httparse",
-    "dep:itoa",
-]
-http2 = [
-    "dep:futures-channel",
-    "dep:futures-util",
-    "dep:h2",
-]
-nightly = []
-server = [
-    "dep:httpdate",
-    "dep:pin-project-lite",
-    "dep:smallvec",
-]
-tracing = ["dep:tracing"]
-
-[lib]
-name = "hyper"
-path = "src/lib.rs"
-
-[dependencies.bytes]
-version = "1.2"
-
-[dependencies.futures-channel]
-version = "0.3"
-optional = true
-
-[dependencies.futures-util]
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-default-features = false
-
-[dependencies.h2]
-version = "0.4.2"
-optional = true
-
-[dependencies.http]
-version = "1"
-
-[dependencies.http-body]
-version = "1"
-
-[dependencies.http-body-util]
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-optional = true
-
-[dependencies.httparse]
-version = "1.9"
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-
-[dependencies.httpdate]
-version = "1.0"
-optional = true
-
-[dependencies.itoa]
-version = "1"
-optional = true
-
-[dependencies.pin-project-lite]
-version = "0.2.4"
-optional = true
-
-[dependencies.smallvec]
-version = "1.12"
-features = [
-    "const_generics",
-    "const_new",
-]
-optional = true
-
-[dependencies.tokio]
-version = "1"
-features = ["sync"]
-
-[dependencies.tracing]
-version = "0.1"
-features = ["std"]
-optional = true
-default-features = false
-
-[dependencies.want]
-version = "0.3"
-optional = true
-
-[dev-dependencies.form_urlencoded]
-version = "1"
-
-[dev-dependencies.futures-channel]
-version = "0.3"
-features = ["sink"]
-
-[dev-dependencies.futures-util]
-version = "0.3"
-features = [
-    "alloc",
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-]
-default-features = false
-
-[dev-dependencies.http-body-util]
-version = "0.1"
-
-[dev-dependencies.pin-project-lite]
-version = "0.2.4"
-
-[dev-dependencies.pretty_env_logger]
-version = "0.5"
-
-[dev-dependencies.serde]
-version = "1.0"
-features = ["derive"]
-
-[dev-dependencies.serde_json]
-version = "1.0"
-
-[dev-dependencies.spmc]
-version = "0.3"
-
-[dev-dependencies.tokio]
-version = "1"
-features = [
-    "fs",
-    "macros",
-    "net",
-    "io-std",
-    "io-util",
-    "rt",
-    "rt-multi-thread",
-    "sync",
-    "time",
-    "test-util",
-]
-
-[dev-dependencies.tokio-test]
-version = "0.4"
-
-[dev-dependencies.tokio-util]
-version = "0.7.10"
-
-[lints.rust.unexpected_cfgs]
-level = "warn"
-priority = 0
-check-cfg = [
-    "cfg(hyper_unstable_tracing)",
-    "cfg(hyper_unstable_ffi)",
-]
-
-[profile.bench]
-codegen-units = 1
-incremental = false
-
-[profile.release]
-codegen-units = 1
-incremental = false