feat: initial Rust Core (cpex-core and cpex-sdk) (contextforge-org#13)

* feat: initial revision rust core.

Signed-off-by: Teryl Taylor <terylt@ibm.com>

* fix: addressed comments in PR. Updated PluginContext to match spec.

Signed-off-by: Teryl Taylor <terylt@ibm.com>

---------

Signed-off-by: Teryl Taylor <terylt@ibm.com>
Co-authored-by: Teryl Taylor <terylt@ibm.com>

Author: terylt

Cargo.lock

@@ -9,47 +9,7 @@
 resolver = "2"
 members = [
     "crates/cpex-core",
-    "crates/cpex-orchestration",
     "crates/cpex-sdk",
-    "crates/cpex-ffi",
-    "crates/apl-core",
-    "crates/apl-cmf",
-    "crates/apl-cpex",
-    "crates/apl-pdp-cedar-direct",
-    "crates/apl-cedarling",
-    "crates/apl-identity-jwt",
-    "crates/apl-delegator-oauth",
-    "crates/apl-delegator-biscuit",
-    "crates/apl-pii-scanner",
-    "crates/apl-audit-logger",
-    "examples/go-demo/ffi",
-]
-
-# `default-members` controls what `cargo build` / `cargo test` (with no
-# `-p` or `--workspace` flag) picks up. Cedarling integration crates
-# pull ~200 transitive deps (jsonwebtoken, reqwest, sparkv, datalogic-rs,
-# flate2, etc.) and slow default builds significantly — excluding them
-# from default-members keeps everyday iteration fast.
-#
-# To exercise Cedarling crates:
-#   cargo build --workspace                # all members
-#   cargo build -p apl-cedarling           # just this one
-#   cargo test --workspace                 # full sweep (CI)
-default-members = [
-    "crates/cpex-core",
-    "crates/cpex-orchestration",
-    "crates/cpex-sdk",
-    "crates/cpex-ffi",
-    "crates/apl-core",
-    "crates/apl-cmf",
-    "crates/apl-cpex",
-    "crates/apl-pdp-cedar-direct",
-    "crates/apl-identity-jwt",
-    "crates/apl-delegator-oauth",
-    "crates/apl-delegator-biscuit",
-    "crates/apl-pii-scanner",
-    "crates/apl-audit-logger",
-    "examples/go-demo/ffi",
 ]
 
 [workspace.package]
@@ -60,20 +20,12 @@ authors = ["Teryl Taylor"]
 
 [workspace.dependencies]
 tokio = { version = "1", features = ["full"] }
-tokio-util = { version = "0.7", features = ["rt"] }
-serde = { version = "1", features = ["derive", "rc"] }
+serde = { version = "1", features = ["derive"] }
 serde_yaml = "0.9"
 serde_json = "1"
 async-trait = "0.1"
 thiserror = "2"
 tracing = "0.1"
-uuid = { version = "1", features = ["v4", "serde"] }
+uuid = { version = "1", features = ["v4"] }
 paste = "1"
 futures = "0.3"
-hashbrown = "0.15"
-arc-swap = "1.7"
-wildmatch = "2"
-rmp-serde = "1"
-serde_bytes = "0.11"
-chrono = { version = "0.4", features = ["serde"] }
-regex = "1"

Cargo.toml

@@ -17,7 +17,6 @@ authors.workspace = true
 
 [dependencies]
 tokio = { workspace = true }
-tokio-util = { workspace = true }
 serde = { workspace = true }
 serde_yaml = { workspace = true }
 serde_json = { workspace = true }
@@ -26,15 +25,3 @@ thiserror = { workspace = true }
 tracing = { workspace = true }
 uuid = { workspace = true }
 futures = { workspace = true }
-hashbrown = { workspace = true }
-arc-swap = { workspace = true }
-wildmatch = { workspace = true }
-chrono = { workspace = true }
-# Zeroizing wrapper for raw credential material in RawCredentialsExtension.
-# `derive` feature pulls the proc-macro so we can `#[derive(Zeroize)]` on
-# token-bearing structs in a future slice; for now only the
-# `Zeroizing<String>` wrapper is used directly.
-zeroize = { version = "1.8", features = ["zeroize_derive"] }
-# Shared concurrency primitive used by `executor::run_concurrent_phase`
-# (and apl-core's `Effect::Parallel`). Leaf crate, no cycles back here.
-cpex-orchestration = { path = "../cpex-orchestration" }