fix windows cli build (#2667)

<!-- CURSOR_SUMMARY -->
> [!NOTE]
> Enable Windows CLI build in CI and update generated Python/TypeScript
clients to v0.212.0 with new `watchers` support and minor config tweaks.
> 
> - **CI/CD (CLI Build)**:
> - Add Windows branch trigger and Windows-specific setup in
`.github/workflows/build-cli-release.reusable.yaml` (install `protoc`
and `protoc-gen-go`, skip `mise` on Windows).
> - Split CFFI build into Unix vs Windows steps; adjust artifact naming
and PATH handling.
> - Improve Rust unit test workflow in `primary.yml` (list built libs,
set `BAML_LIBRARY_PATH`, run tests verbosely).
> - **Generated Python Client**:
>   - Bump generator version to `0.212.0` and export `watchers`.
> - Extend `BamlCallOptions` with `watchers` and plumb through runtime
calls.
>   - Add `set_log_max_message_length` alias in `config`.
> - **Generated TypeScript Client**:
> - Bump package version to `0.212.0` and switch exported namespace from
`events` to `watchers`.
> - Make `BamlCallOptions` generic with optional `watchers`; thread
through async/sync clients and request builders.
> - Update method calls to pass `options.watchers` across generated
services.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
4a571dd. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: aaronvg

.github/workflows/build-cli-release.reusable.yaml

@@ -15,6 +15,7 @@ on:
   push:
     branches:
       - sam/mise-protoc-gen-go
+      - aaron/fix-windows
 env:
   MACOSX_DEPLOYMENT_TARGET: "10.13"
   # Turbo remote caching
@@ -82,11 +83,29 @@ jobs:
       - name: Setup Go
         uses: ./.github/actions/setup-go
 
-
       - uses: jdx/mise-action@v2
+        if: matrix._.os != 'windows-2022'
         with:
           install_args: "protoc-gen-go"
 
+      - name: Setup Protoc (Windows)
+        if: matrix._.os == 'windows-2022'
+        shell: bash
+        run: |
+          # Download protoc directly to avoid rate limiting
+          PROTOC_VERSION="27.1"
+          curl -LO "https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/protoc-${PROTOC_VERSION}-win64.zip"
+          unzip -q protoc-${PROTOC_VERSION}-win64.zip -d $HOME/.local
+          echo "$HOME/.local/bin" >> $GITHUB_PATH
+          rm protoc-${PROTOC_VERSION}-win64.zip
+
+      - name: Install protoc-gen-go (Windows)
+        if: matrix._.os == 'windows-2022'
+        run: |
+          go install google.golang.org/protobuf/cmd/[email protected]
+          echo "$HOME/go/bin" >> $GITHUB_PATH
+        shell: bash
+
       - name: Test protoc-gen-go availability
         id: protoc_gen_go_setup
         shell: bash
@@ -135,7 +154,8 @@ jobs:
           --no-default-features
         working-directory: engine
 
-      - name: Build CFFI Library
+      - name: Build CFFI Library (Unix)
+        if: ${{ !contains(matrix._.os, 'windows') }}
         shell: bash
         run: |
           # Set the correct protoc-gen-go path based on whether we're using cross (Linux) or native build
@@ -157,6 +177,13 @@ jobs:
           ${{ env.CARGO }} build --release -p baml_cffi ${{ env.TARGET_FLAGS }}
         working-directory: engine
 
+      - name: Build CFFI Library (Windows)
+        if: ${{ contains(matrix._.os, 'windows') }}
+        shell: bash
+        run: |
+          cargo build --release -p baml_cffi ${{ env.TARGET_FLAGS }}
+        working-directory: engine
+
       # Determine CFFI library name and artifact suffix based on OS
       - name: Set CFFI Lib Info
         id: cffi_info

.github/workflows/primary.yml

@@ -237,8 +237,14 @@ jobs:
           export LD_LIBRARY_PATH="${RUBY_LIB_PATH}:${LD_LIBRARY_PATH}"
           # Build baml_cffi shared library
           cargo build --package baml_cffi
+          echo "Listing release directory:"
+          ls -la engine/target/release/libbaml_cffi.* || true
+          ls -la engine/target/release/baml_cffi.* || true
+
+          export BAML_LIBRARY_PATH=${{ github.workspace }}/engine/target/debug/libbaml_cffi.so
           # Run tests
-          cargo test --features skip-integ-tests
+          echo "BAML_LIBRARY_PATH=${{ github.workspace }}/engine/target/debug/libbaml_cffi.so" >> $GITHUB_ENV
+          cargo test --features skip-integ-tests --verbose -- --nocapture
         working-directory: engine
 
       - name: Run Python integration tests