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, 299 deletions

diff --git a/vendor/time/src/interop/js_sys_date_offsetdatetime.rs b/vendor/time/src/interop/js_sys_date_offsetdatetime.rs
deleted file mode 100644
index ecbd601e..00000000
--- a/vendor/time/src/interop/js_sys_date_offsetdatetime.rs
+++ /dev/null
@@ -1,27 +0,0 @@
-use num_conv::prelude::*;
-
-use crate::convert::*;
-use crate::OffsetDateTime;
-
-impl From<js_sys::Date> for OffsetDateTime {
-    /// # Panics
-    ///
-    /// This may panic if the timestamp can not be represented.
-    fn from(js_date: js_sys::Date) -> Self {
-        // get_time() returns milliseconds
-        let timestamp_nanos = js_date.get_time() as i128
-            * Nanosecond::per(Millisecond).cast_signed().extend::<i128>();
-        Self::from_unix_timestamp_nanos(timestamp_nanos)
-            .expect("invalid timestamp: Timestamp cannot fit in range")
-    }
-}
-
-impl From<OffsetDateTime> for js_sys::Date {
-    fn from(datetime: OffsetDateTime) -> Self {
-        // new Date() takes milliseconds
-        let timestamp = (datetime.unix_timestamp_nanos()
-            / Nanosecond::per(Millisecond).cast_signed().extend::<i128>())
-            as f64;
-        Self::new(&timestamp.into())
-    }
-}
diff --git a/vendor/time/src/interop/js_sys_date_utcdatetime.rs b/vendor/time/src/interop/js_sys_date_utcdatetime.rs
deleted file mode 100644
index e387c684..00000000
--- a/vendor/time/src/interop/js_sys_date_utcdatetime.rs
+++ /dev/null
@@ -1,26 +0,0 @@
-use num_conv::prelude::*;
-
-use crate::convert::*;
-use crate::UtcDateTime;
-
-impl From<js_sys::Date> for UtcDateTime {
-    /// # Panics
-    ///
-    /// This may panic if the timestamp can not be represented.
-    fn from(js_date: js_sys::Date) -> Self {
-        // get_time() returns milliseconds
-        let timestamp_nanos = (js_date.get_time() * Nanosecond::per(Millisecond) as f64) as i128;
-        Self::from_unix_timestamp_nanos(timestamp_nanos)
-            .expect("invalid timestamp: Timestamp cannot fit in range")
-    }
-}
-
-impl From<UtcDateTime> for js_sys::Date {
-    fn from(datetime: UtcDateTime) -> Self {
-        // new Date() takes milliseconds
-        let timestamp = (datetime.unix_timestamp_nanos()
-            / Nanosecond::per(Millisecond).cast_signed().extend::<i128>())
-            as f64;
-        Self::new(&timestamp.into())
-    }
-}
diff --git a/vendor/time/src/interop/mod.rs b/vendor/time/src/interop/mod.rs
deleted file mode 100644
index d562663c..00000000
--- a/vendor/time/src/interop/mod.rs
+++ /dev/null
@@ -1,28 +0,0 @@
-//! Comparison, arithmetic, and conversion between various types in `time` and the standard library.
-//!
-//! Currently, full interoperability is present between [`OffsetDateTime`](crate::OffsetDateTime),
-//! [`UtcDateTime`](crate::UtcDateTime), and [`SystemTime`](std::time::SystemTime). Partial
-//! interoperability is present with [`js_sys::Date`]. Note that
-//! [`PrimitiveDateTime`](crate::PrimitiveDateTime) is not interoperable with any of these types due
-//! to the lack of an associated UTC offset.
-
-// Module names should have the two types sorted in alphabetical order. This avoids any question
-// of which type should be the "primary" type in the module name.
-
-#[cfg(all(
-    target_family = "wasm",
-    not(any(target_os = "emscripten", target_os = "wasi")),
-    feature = "wasm-bindgen"
-))]
-mod js_sys_date_offsetdatetime;
-#[cfg(all(
-    target_family = "wasm",
-    not(any(target_os = "emscripten", target_os = "wasi")),
-    feature = "wasm-bindgen"
-))]
-mod js_sys_date_utcdatetime;
-#[cfg(feature = "std")]
-mod offsetdatetime_systemtime;
-mod offsetdatetime_utcdatetime;
-#[cfg(feature = "std")]
-mod utcdatetime_systemtime;
diff --git a/vendor/time/src/interop/offsetdatetime_systemtime.rs b/vendor/time/src/interop/offsetdatetime_systemtime.rs
deleted file mode 100644
index 21a5d7f1..00000000
--- a/vendor/time/src/interop/offsetdatetime_systemtime.rs
+++ /dev/null
@@ -1,75 +0,0 @@
-use core::cmp::Ordering;
-use core::ops::Sub;
-use std::time::SystemTime;
-
-use crate::{Duration, OffsetDateTime};
-
-impl Sub<SystemTime> for OffsetDateTime {
-    type Output = Duration;
-
-    /// # Panics
-    ///
-    /// This may panic if an overflow occurs.
-    fn sub(self, rhs: SystemTime) -> Self::Output {
-        self - Self::from(rhs)
-    }
-}
-
-impl Sub<OffsetDateTime> for SystemTime {
-    type Output = Duration;
-
-    /// # Panics
-    ///
-    /// This may panic if an overflow occurs.
-    fn sub(self, rhs: OffsetDateTime) -> Self::Output {
-        OffsetDateTime::from(self) - rhs
-    }
-}
-
-impl PartialEq<SystemTime> for OffsetDateTime {
-    fn eq(&self, rhs: &SystemTime) -> bool {
-        self == &Self::from(*rhs)
-    }
-}
-
-impl PartialEq<OffsetDateTime> for SystemTime {
-    fn eq(&self, rhs: &OffsetDateTime) -> bool {
-        &OffsetDateTime::from(*self) == rhs
-    }
-}
-
-impl PartialOrd<SystemTime> for OffsetDateTime {
-    fn partial_cmp(&self, other: &SystemTime) -> Option<Ordering> {
-        self.partial_cmp(&Self::from(*other))
-    }
-}
-
-impl PartialOrd<OffsetDateTime> for SystemTime {
-    fn partial_cmp(&self, other: &OffsetDateTime) -> Option<Ordering> {
-        OffsetDateTime::from(*self).partial_cmp(other)
-    }
-}
-
-impl From<SystemTime> for OffsetDateTime {
-    fn from(system_time: SystemTime) -> Self {
-        match system_time.duration_since(SystemTime::UNIX_EPOCH) {
-            Ok(duration) => Self::UNIX_EPOCH + duration,
-            Err(err) => Self::UNIX_EPOCH - err.duration(),
-        }
-    }
-}
-
-impl From<OffsetDateTime> for SystemTime {
-    fn from(datetime: OffsetDateTime) -> Self {
-        let duration = datetime - OffsetDateTime::UNIX_EPOCH;
-
-        if duration.is_zero() {
-            Self::UNIX_EPOCH
-        } else if duration.is_positive() {
-            Self::UNIX_EPOCH + duration.unsigned_abs()
-        } else {
-            debug_assert!(duration.is_negative());
-            Self::UNIX_EPOCH - duration.unsigned_abs()
-        }
-    }
-}
diff --git a/vendor/time/src/interop/offsetdatetime_utcdatetime.rs b/vendor/time/src/interop/offsetdatetime_utcdatetime.rs
deleted file mode 100644
index 34a4887d..00000000
--- a/vendor/time/src/interop/offsetdatetime_utcdatetime.rs
+++ /dev/null
@@ -1,68 +0,0 @@
-use core::cmp::Ordering;
-use core::ops::Sub;
-
-use crate::{Duration, OffsetDateTime, UtcDateTime};
-
-impl Sub<OffsetDateTime> for UtcDateTime {
-    type Output = Duration;
-
-    /// # Panics
-    ///
-    /// This may panic if an overflow occurs.
-    fn sub(self, rhs: OffsetDateTime) -> Self::Output {
-        OffsetDateTime::from(self) - rhs
-    }
-}
-
-impl Sub<UtcDateTime> for OffsetDateTime {
-    type Output = Duration;
-
-    /// # Panics
-    ///
-    /// This may panic if an overflow occurs.
-    fn sub(self, rhs: UtcDateTime) -> Self::Output {
-        self - Self::from(rhs)
-    }
-}
-
-impl PartialEq<OffsetDateTime> for UtcDateTime {
-    fn eq(&self, other: &OffsetDateTime) -> bool {
-        OffsetDateTime::from(*self) == *other
-    }
-}
-
-impl PartialEq<UtcDateTime> for OffsetDateTime {
-    fn eq(&self, other: &UtcDateTime) -> bool {
-        *self == Self::from(*other)
-    }
-}
-
-impl PartialOrd<OffsetDateTime> for UtcDateTime {
-    fn partial_cmp(&self, other: &OffsetDateTime) -> Option<Ordering> {
-        OffsetDateTime::from(*self).partial_cmp(other)
-    }
-}
-
-impl PartialOrd<UtcDateTime> for OffsetDateTime {
-    fn partial_cmp(&self, other: &UtcDateTime) -> Option<Ordering> {
-        self.partial_cmp(&Self::from(*other))
-    }
-}
-
-impl From<OffsetDateTime> for UtcDateTime {
-    /// # Panics
-    ///
-    /// This may panic if an overflow occurs.
-    fn from(datetime: OffsetDateTime) -> Self {
-        datetime.to_utc()
-    }
-}
-
-impl From<UtcDateTime> for OffsetDateTime {
-    /// # Panics
-    ///
-    /// This may panic if an overflow occurs.
-    fn from(datetime: UtcDateTime) -> Self {
-        datetime.as_primitive().assume_utc()
-    }
-}
diff --git a/vendor/time/src/interop/utcdatetime_systemtime.rs b/vendor/time/src/interop/utcdatetime_systemtime.rs
deleted file mode 100644
index 7cfb44e1..00000000
--- a/vendor/time/src/interop/utcdatetime_systemtime.rs
+++ /dev/null
@@ -1,75 +0,0 @@
-use core::cmp::Ordering;
-use core::ops::Sub;
-use std::time::SystemTime;
-
-use crate::{Duration, UtcDateTime};
-
-impl Sub<SystemTime> for UtcDateTime {
-    type Output = Duration;
-
-    /// # Panics
-    ///
-    /// This may panic if an overflow occurs.
-    fn sub(self, rhs: SystemTime) -> Self::Output {
-        self - Self::from(rhs)
-    }
-}
-
-impl Sub<UtcDateTime> for SystemTime {
-    type Output = Duration;
-
-    /// # Panics
-    ///
-    /// This may panic if an overflow occurs.
-    fn sub(self, rhs: UtcDateTime) -> Self::Output {
-        UtcDateTime::from(self) - rhs
-    }
-}
-
-impl PartialEq<SystemTime> for UtcDateTime {
-    fn eq(&self, rhs: &SystemTime) -> bool {
-        self == &Self::from(*rhs)
-    }
-}
-
-impl PartialEq<UtcDateTime> for SystemTime {
-    fn eq(&self, rhs: &UtcDateTime) -> bool {
-        &UtcDateTime::from(*self) == rhs
-    }
-}
-
-impl PartialOrd<SystemTime> for UtcDateTime {
-    fn partial_cmp(&self, other: &SystemTime) -> Option<Ordering> {
-        self.partial_cmp(&Self::from(*other))
-    }
-}
-
-impl PartialOrd<UtcDateTime> for SystemTime {
-    fn partial_cmp(&self, other: &UtcDateTime) -> Option<Ordering> {
-        UtcDateTime::from(*self).partial_cmp(other)
-    }
-}
-
-impl From<SystemTime> for UtcDateTime {
-    fn from(system_time: SystemTime) -> Self {
-        match system_time.duration_since(SystemTime::UNIX_EPOCH) {
-            Ok(duration) => Self::UNIX_EPOCH + duration,
-            Err(err) => Self::UNIX_EPOCH - err.duration(),
-        }
-    }
-}
-
-impl From<UtcDateTime> for SystemTime {
-    fn from(datetime: UtcDateTime) -> Self {
-        let duration = datetime - UtcDateTime::UNIX_EPOCH;
-
-        if duration.is_zero() {
-            Self::UNIX_EPOCH
-        } else if duration.is_positive() {
-            Self::UNIX_EPOCH + duration.unsigned_abs()
-        } else {
-            debug_assert!(duration.is_negative());
-            Self::UNIX_EPOCH - duration.unsigned_abs()
-        }
-    }
-}