Add RFC7807 responses and tonic conversion

CHANGELOG.md

@@ -3,6 +3,29 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [0.15.0] - 2025-09-25
+
+### Added
+- Introduced a `response::problem_json` module with an RFC7807 `ProblemJson`
+  payload that serializes metadata, gRPC mappings and retry/authentication
+  hints while respecting the message redaction policy.
+- Added an optional `tonic` feature exposing `TryFrom<Error> for tonic::Status`
+  with sanitized metadata and canonical gRPC code mapping.
+- Published a compile-time `CODE_MAPPINGS` table mapping each `AppCode` to
+  HTTP, gRPC and problem type information for reuse across transports.
+
+### Changed
+- Updated Axum and Actix integrations to emit `application/problem+json`
+  bodies, attach `Retry-After`/`WWW-Authenticate` headers automatically and
+  avoid leaking redactable messages or metadata.
+- Re-exported `ProblemJson` from the crate root alongside `ErrorResponse` for
+  direct construction in custom handlers.
+
+### Tests
+- Added unit coverage for the problem+json metadata sanitizer, header
+  propagation in Axum, and gRPC code mapping under the new `tonic` feature.
+
+
 ## [0.14.1] - 2025-09-25
 
 ### Changed

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "masterror"
-version = "0.14.1"
+version = "0.15.0"
 rust-version = "1.90"
 edition = "2024"
 license = "MIT OR Apache-2.0"
@@ -71,6 +71,7 @@ teloxide = ["dep:teloxide-core"]
 telegram-webapp-sdk = ["dep:telegram-webapp-sdk"]
 frontend = ["dep:wasm-bindgen", "dep:js-sys", "dep:serde-wasm-bindgen"]
 turnkey = []
+tonic = ["dep:tonic"]
 openapi = ["dep:utoipa"]
 
 [workspace.dependencies]
@@ -119,6 +120,7 @@ serde-wasm-bindgen = { version = "0.6", optional = true }
 uuid = { version = "1", default-features = false, features = [
   "std"
 ] }
+tonic = { version = "0.12", optional = true }
 
 [dev-dependencies]
 serde_json = "1"
@@ -156,6 +158,7 @@ feature_order = [
   "multipart",
   "teloxide",
   "telegram-webapp-sdk",
+  "tonic",
   "frontend",
   "turnkey",
 ]
@@ -225,6 +228,9 @@ description = "Convert teloxide_core::RequestError into domain errors"
 [package.metadata.masterror.readme.features."telegram-webapp-sdk"]
 description = "Surface Telegram WebApp validation failures"
 
+[package.metadata.masterror.readme.features.tonic]
+description = "Convert AppError into tonic::Status with redaction"
+
 [package.metadata.masterror.readme.features.frontend]
 description = "Log to the browser console and convert to JsValue on WASM"