chore: bump bundled DuckDB to v1.5.3 (#73)

* chore: bump bundled DuckDB to v1.5.3

Updates the DuckDB submodule from v1.5.2 to the latest stable bugfix
release v1.5.3 (released 2026-05-20), and the matching version references.

- duckdb submodule: v1.5.2 -> v1.5.3
- CMakeLists.txt: DUCKDB_EXPLICIT_VERSION 1.5.2 -> 1.5.3 (+ comments)
- docs: AGENTS.md (CLAUDE.md symlink), Readme.md, CONFIG_REFERENCE.md

Unit tests pass (642/642) and runtime SELECT version() reports v1.5.3.

* ci: pin windows-build to windows-2022

The `windows-latest` runner image was migrated and no longer exposes
Visual Studio 2022, so `cmake -G "Visual Studio 17 2022"` fails at
configure time with "could not find any instance of Visual Studio"
(before DuckDB is even added). Pin the build job to windows-2022,
which ships VS 2022, restoring the last-known-good environment.

The smoke-test-windows / pack-smoke-windows jobs only run the prebuilt
binary (no VS needed) and stay on windows-latest.

Author: jrosskopf

.github/workflows/build.yaml

@@ -24,7 +24,10 @@ jobs:
   # Windows Build (AMD64)
   # -------------------------------------------------------------------------------------------------
   windows-build:
-    runs-on: windows-latest
+    # Pinned to windows-2022: the `-G "Visual Studio 17 2022"` generator below
+    # needs VS 2022, which the migrated `windows-latest` image no longer exposes
+    # ("could not find any instance of Visual Studio"). windows-2022 ships VS 2022.
+    runs-on: windows-2022
     env:
       VCPKG_DEFAULT_TRIPLET: x64-windows-static
       VCPKG_ROOT: ${{ github.workspace }}\\vcpkg

AGENTS.md

@@ -18,7 +18,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 - ~13,400 lines of C++ code across 54 files
 - Supports Linux (x86/ARM64), macOS (Intel/Apple Silicon), and Windows
 - Declarative API philosophy: logic lives in YAML/SQL, not compiled code
-- Single binary deployment with built-in DuckDB 1.5.2
+- Single binary deployment with built-in DuckDB 1.5.3
 
 ## Architecture Documentation
 
@@ -679,7 +679,7 @@ make integration-test-ci           # Full suite with server management
 
 ### DuckDB Integration
 
-- Embedded in-process OLAP database (v1.5.2)
+- Embedded in-process OLAP database (v1.5.3)
 - Extensions for external data sources: BigQuery, Postgres, Iceberg, Parquet, CSV
 - Query execution with result caching
 
@@ -1206,7 +1206,7 @@ Common extensions:
 
 | Library | Purpose |
 |---------|---------|
-| **DuckDB 1.5.2** | In-process OLAP database |
+| **DuckDB 1.5.3** | In-process OLAP database |
 | **Crow** | C++ web framework |
 | **OpenSSL** | Encryption/security |
 | **jwt-cpp** | JWT authentication |

CMakeLists.txt

@@ -5,7 +5,7 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # Windows-specific settings
 if(WIN32)
-    # Use static runtime libraries for Windows builds (/MT, matching DuckDB 1.5.2)
+    # Use static runtime libraries for Windows builds (/MT, matching DuckDB 1.5.3)
     add_definitions(-D_WIN32_WINNT=0x0601)  # Target Windows 7 or later
 
     # Set vcpkg triplet for Windows
@@ -17,7 +17,7 @@ if(WIN32)
         endif()
     endif()
 
-    # Force static CRT (/MT) to match DuckDB 1.5.2's unconditional
+    # Force static CRT (/MT) to match DuckDB 1.5.3's unconditional
     # set(CMAKE_MSVC_RUNTIME_LIBRARY ...) in duckdb/CMakeLists.txt:39.
     # vcpkg's toolchain only sets /MT for packages; flapi's own targets need
     # this explicit setting or MSVC defaults to /MD → LNK2038 at link time.
@@ -197,7 +197,7 @@ find_package(zstd CONFIG REQUIRED)
 find_package(lz4 CONFIG REQUIRED)
 
 # Add DuckDB
-set(DUCKDB_EXPLICIT_VERSION 1.5.2)
+set(DUCKDB_EXPLICIT_VERSION 1.5.3)
 set(ENABLE_EXTENSION_AUTOLOADING true)
 set(ENABLE_EXTENSION_AUTOINSTALL true)
 if (WIN32)

Readme.md

@@ -46,7 +46,7 @@ The easiest way to get started with flAPI is to use the pre-built docker image.
 ```
 
 
-The image is pretty small and mainly contains the flAPI binary which is statically linked against [DuckDB v1.5.2](https://github.com/duckdb/duckdb/releases/tag/v1.5.2). Details about the docker image can be found in the [Dockerfile](./docker/development/Dockerfile).
+The image is pretty small and mainly contains the flAPI binary which is statically linked against [DuckDB v1.5.3](https://github.com/duckdb/duckdb/releases/tag/v1.5.3). Details about the docker image can be found in the [Dockerfile](./docker/development/Dockerfile).
 
 #### 2. Run flAPI:
 Once you have downloaded the binary, you can run flAPI by executing the following command:

docs/CONFIG_REFERENCE.md

@@ -2,7 +2,7 @@
 
 **Version:** 1.0.0
 **flAPI Version:** >= 1.0.0
-**DuckDB Version:** >= 1.5.2
+**DuckDB Version:** >= 1.5.3
 
 This document provides a complete reference for all configuration options in flAPI, the SQL-to-API framework that generates REST APIs and MCP tools from SQL templates.