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.

6 files changed, 0 insertions, 288 deletions

diff --git a/vendor/tinyvec_macros/.cargo-checksum.json b/vendor/tinyvec_macros/.cargo-checksum.json
deleted file mode 100644
index 1a77eeb1..00000000
--- a/vendor/tinyvec_macros/.cargo-checksum.json
+++ /dev/null
@@ -1 +0,0 @@
-{"files":{"Cargo.toml":"104cb36d7a1c9f2b345883f74e8d49f6cdfab9b44d00516934cdc1476ed1cc44","LICENSE-APACHE.md":"4f44572785f35152c1fd2eadf565b7e079c0f300b4324f0af653419f9d76b735","LICENSE-MIT.md":"1dd8eca0f83669e75fa119e34fb9e1be9d16e3e9b6368962b8019db6e8ae5f7b","LICENSE-ZLIB.md":"41ace205715d9f19a3214218cc1c01d57c533e02cd0fef7c8e51a49a7fce5ac5","src/lib.rs":"8e79346da033b3441987b45e8d8530dd48441aa5d5addaeec5650ce7a0f64dc0"},"package":"1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"}
\ No newline at end of file
diff --git a/vendor/tinyvec_macros/Cargo.toml b/vendor/tinyvec_macros/Cargo.toml
deleted file mode 100644
index 61362866..00000000
--- a/vendor/tinyvec_macros/Cargo.toml
+++ /dev/null
@@ -1,19 +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 = "tinyvec_macros"
-version = "0.1.1"
-authors = ["Soveu <marx.tomasz@gmail.com>"]
-description = "Some macros for tiny containers"
-license = "MIT OR Apache-2.0 OR Zlib"
-repository = "https://github.com/Soveu/tinyvec_macros"
diff --git a/vendor/tinyvec_macros/LICENSE-APACHE.md b/vendor/tinyvec_macros/LICENSE-APACHE.md
deleted file mode 100644
index 69a59b41..00000000
--- a/vendor/tinyvec_macros/LICENSE-APACHE.md
+++ /dev/null
@@ -1,202 +0,0 @@
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
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-      the conditions stated in this License.
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-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
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-   8. Limitation of Liability. In no event and under no legal theory,
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-      liable to You for damages, including any direct, indirect, special,
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-      Work (including but not limited to damages for loss of goodwill,
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-      the Work or Derivative Works thereof, You may choose to offer,
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-      defend, and hold each Contributor harmless for any liability
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-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "[]"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
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-
-   Copyright 2020 Tomasz "Soveu" Marx
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
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-   See the License for the specific language governing permissions and
-   limitations under the License.
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diff --git a/vendor/tinyvec_macros/LICENSE-MIT.md b/vendor/tinyvec_macros/LICENSE-MIT.md
deleted file mode 100644
index 4a8554df..00000000
--- a/vendor/tinyvec_macros/LICENSE-MIT.md
+++ /dev/null
@@ -1,21 +0,0 @@
-MIT License
-
-Copyright (c) 2020 Soveu
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
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-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
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-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/vendor/tinyvec_macros/LICENSE-ZLIB.md b/vendor/tinyvec_macros/LICENSE-ZLIB.md
deleted file mode 100644
index f43568b0..00000000
--- a/vendor/tinyvec_macros/LICENSE-ZLIB.md
+++ /dev/null
@@ -1,20 +0,0 @@
-zlib License
-
-(C) 2020 Tomasz "Soveu" Marx
-
-This software is provided 'as-is', without any express or implied
-warranty.  In no event will the authors be held liable for any damages
-arising from the use of this software.
-
-Permission is granted to anyone to use this software for any purpose,
-including commercial applications, and to alter it and redistribute it
-freely, subject to the following restrictions:
-
-1. The origin of this software must not be misrepresented; you must not
-   claim that you wrote the original software. If you use this software
-   in a product, an acknowledgment in the product documentation would be
-   appreciated but is not required.
-2. Altered source versions must be plainly marked as such, and must not be
-   misrepresented as being the original software.
-3. This notice may not be removed or altered from any source distribution.
-
diff --git a/vendor/tinyvec_macros/src/lib.rs b/vendor/tinyvec_macros/src/lib.rs
deleted file mode 100644
index 3c15b19d..00000000
--- a/vendor/tinyvec_macros/src/lib.rs
+++ /dev/null
@@ -1,25 +0,0 @@
-#![no_std]
-#![forbid(unsafe_code)]
-
-#[macro_export]
-macro_rules! impl_mirrored {
-    {
-    type Mirror = $tinyname:ident;
-    $(
-        $(#[$attr:meta])*
-        $v:vis fn $fname:ident ($seif:ident : $seifty:ty $(,$argname:ident : $argtype:ty)*) $(-> $ret:ty)? ;
-    )*
-    } => {
-        $(
-        $(#[$attr])*
-        #[inline(always)]
-        $v fn $fname($seif : $seifty, $($argname: $argtype),*) $(-> $ret)? {
-            match $seif {
-                $tinyname::Inline(i) => i.$fname($($argname),*),
-                $tinyname::Heap(h) => h.$fname($($argname),*),
-            }
-        }
-        )*
-    };
-}
-