pl-api: Update docs, build docs as part of CI

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

.github/workflows/pl-api.yaml

@@ -34,8 +34,18 @@ jobs:
       working-directory: ./packages/pl-api
       run: yarn lint
 
-    - name: build
+    - name: Build
       env:
         NODE_ENV: production
       working-directory: ./packages/pl-api
       run: yarn build
+
+    - name: Build documentation
+      working-directory: ./packages/pl-api
+      run: npx typedoc lib/main.ts
+
+    - name: Upload artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: pl-api
+        path: packages/pl-api/docs