Refactoring codegen process

.github/workflows/pr.yml

@@ -22,6 +22,30 @@ jobs:
       - name: Unit tests
         run: make test
 
+  codegen:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Go 1.22
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.22.0'
+
+      - name: Install jq
+        run: sudo apt-get install -y jq
+
+      - name: Run codegen
+        run: make codegen-types
+
+      - name: Verify generated types are up to date
+        run: |
+          if ! git diff --exit-code sdk-clients/; then
+            echo "Generated types are out of date. Run 'make codegen-types' and commit the changes."
+            exit 1
+          fi
+
   lint:
     runs-on: ubuntu-latest
     steps:

BREAKING_CHANGES.md

@@ -2,6 +2,20 @@
 
 This document tracks breaking changes between major versions of the SDK that affect users importing and integrating the library.
 
+## Unreleased
+
+### Removed `*Fixed` Types (Replaced by Spec Patches)
+
+The following types have been removed because spec patches now fix the upstream OpenAPI type errors, making the generated types correct:
+
+| Removed Type | Package | Replacement |
+|---|---|---|
+| `PresetClassFixed` | `fusion` | `PresetClass` |
+| `QuotePresetsClassFixed` | `fusion` | `QuotePresetsClass` |
+| `GetQuoteOutputFixed` | `fusionplus` | `GetQuoteOutput` |
+| `GetOrderFillsByHashOutputFixed` | `fusionplus` | `GetOrderFillsByHashOutput` |
+| `TokenInfoDtoFixed` | `tokens` | *(removed, was unused)* |
+
 ## Version 3.0.0
 
 ### New Shared `fusionorder` Package

CHANGELOG.md

@@ -4,6 +4,26 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html) starting with the *v1.0.0-beta.1* release.
 
+## [Unreleased]
+
+### Breaking Changes
+- **`fusion.PresetClassFixed`** removed — use `fusion.PresetClass` (generated type now correct via spec patch)
+- **`fusion.QuotePresetsClassFixed`** removed — use `fusion.QuotePresetsClass`
+- **`fusionplus.GetQuoteOutputFixed`** removed — use `fusionplus.GetQuoteOutput` (generated type now correct via spec patch)
+- **`fusionplus.GetOrderFillsByHashOutputFixed`** removed — use `fusionplus.GetOrderFillsByHashOutput`
+- **`tokens.TokenInfoDtoFixed`** removed (was unused)
+
+### Added
+- Spec patch system (`codegen/patches/*.jq`) for fixing upstream OpenAPI type errors at codegen time
+- CI enforcement: PRs now verify generated types are up to date
+
+### Fixed
+- OpenAPI spec bugs fixed via patches: `ExclusiveResolver` (fusion/fusionplus), `QuoteId` (fusionplus), `DstTokenPriceUsd`/`SrcTokenPriceUsd` (fusionplus), `Points` array (fusionplus), `Amount`/`Fee`/`IsPermit2` parameter types (fusionplus)
+
+### Changed
+- Codegen now uses a staging directory — specs in `codegen/openapi/` are no longer mutated in-place
+- Upgraded `oapi-codegen` from deprecated `v1.16.2` (`deepmap`) to `v2.5.1` (`oapi-codegen`)
+
 ## [v3.0.0] - 2026-02-06
 
 ### Breaking Changes