H-3422: harpc: rework the family of Codec traits

Cargo.toml

@@ -23,6 +23,7 @@ members = [
     "libs/@local/harpc/tower",
     "libs/@local/harpc/service",
     "libs/@local/harpc/server",
+    "libs/@local/harpc/codec",
     "libs/@local/hql/*",
     "libs/antsi",
     "libs/deer",
@@ -59,6 +60,7 @@ harpc-types.path = "libs/@local/harpc/types"
 harpc-wire-protocol.path = "libs/@local/harpc/wire-protocol"
 harpc-tower.path = "libs/@local/harpc/tower"
 harpc-service.path = "libs/@local/harpc/service"
+harpc-codec.path = "libs/@local/harpc/codec"
 hash-graph-store.path = "apps/hash-graph/libs/store"
 hash-status.path = "libs/@local/status/rust"
 hash-tracing.path = "libs/@local/tracing"
@@ -142,10 +144,8 @@ async-scoped = { version = "=0.9.0", default-features = false }
 async-trait = { version = "=0.1.83", default-features = false }
 aws-config = { version = "=1.5.8" }
 aws-sdk-s3 = { version = "=1.54.0", default-features = false }
-base64 = { version = "=0.22.1", default-features = false }
 bitvec = { version = "=1.0.1", default-features = false }
 bytes-utils = { version = "=0.1.4", default-features = false }
-chrono = { version = "=0.4.38", default-features = false }
 clap = { version = "=4.5.20", features = ["std", "color", "help", "usage", "error-context", "suggestions"] }
 clap_complete = { version = "=4.5.33", default-features = false }
 coverage-helper = { version = "=0.2.2", default-features = false }
@@ -155,7 +155,6 @@ dotenv-flow = { version = "=0.16.2", default-features = false }
 expect-test = { version = "=1.5.0", default-features = false }
 futures = { version = "=0.3.31", default-features = false }
 hifijson = { version = "=0.2.2", default-features = false }
-http-body-util = { version = "=0.1.2", default-features = false }
 humansize = { version = "=2.1.3", default-features = false }
 hyper = { version = "=1.4.1", default-features = false }
 include_dir = { version = "=0.7.4", default-features = false }
@@ -188,19 +187,13 @@ rustc_version = { version = "=0.4.1", default-features = false }
 scc = { version = "=2.2.0", default-features = false }
 sentry = { version = "=0.34.0", default-features = false, features = ["backtrace", "contexts", "debug-images", "panic", "reqwest", "rustls", "tracing", "tower-http"] }
 seq-macro = { version = "=0.3.5", default-features = false }
-serde-value = { version = "=0.7.0", default-features = false }
 serde_plain = { version = "=1.0.2", default-features = false }
 serde_with = { version = "=3.11.0", default-features = false }
 similar-asserts = { version = "=1.6.0", default-features = false }
-spin = { version = "=0.9", default-features = false }
 supports-color = { version = "=3.0.1", default-features = false }
 supports-unicode = { version = "=3.0.0", default-features = false }
-sval = { version = "=2.13.1", default-features = false }
-syn = { version = "=2.0.79", default-features = false }
 tachyonix = { version = "=0.3.1", default-features = false }
 tarpc = { version = "=0.33", default-features = false }
-temporal-io-client = { git = "https://github.com/temporalio/sdk-core", rev = "7e3c23f" }
-temporal-io-sdk-core-protos = { git = "https://github.com/temporalio/sdk-core", rev = "7e3c23f" }
 test-fuzz = { version = "=6.0.0", default-features = false }
 test-log = { version = "=0.2.16", default-features = false }
 test-strategy = { version = "=0.4.0", default-features = false }

libs/@local/harpc/codec/Cargo.toml

@@ -0,0 +1,38 @@
+cargo-features = ["edition2024"]
+
+[package]
+name = "harpc-codec"
+authors.workspace = true
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+publish.workspace = true
+
+[dependencies]
+error-stack = { workspace = true, public = true, features = ["serde"] }
+
+# Public third-party dependencies
+bytes = { workspace = true, public = true }
+futures-core = { workspace = true, public = true }
+serde = { workspace = true, public = true }
+
+# Private workspace dependencies
+proptest = { workspace = true, optional = true }
+test-strategy = { workspace = true, optional = true }
+futures-util = { workspace = true, optional = true }
+serde_json = { workspace = true, optional = true, public = true }
+pin-project-lite = { workspace = true, optional = true }
+memchr = { workspace = true, optional = true }
+
+# Private third-party dependencies
+
+[dev-dependencies]
+tokio = { workspace = true, features = ["macros", "rt-multi-thread"] }
+
+[lints]
+workspace = true
+
+[features]
+proptest = ["dep:proptest", "dep:test-strategy"]
+json = ["dep:serde_json", "dep:pin-project-lite", "dep:futures-util", "dep:memchr"]
+serde = ["serde/derive"]