add agent instructions

AGENTS.md

@@ -0,0 +1,25 @@
+# AGENTS.md
+
+This repo uses Databricks CLI to deploy a Databricks Asset Bundle.
+
+## Project Structure
+- `databricks.yml`: Databricks Asset Bundle configuration file
+- `dbt`: dbt project
+- `src/dab_project`: Python project using PySpark and DeltaTable
+- `resources`: Databricks workflow resources
+- `tests`: Unit tests for the Python project
+
+ ## Setup commands
+- Install deps: `uv sync --locked --all-extras`
+- Run code checks: `uv run ruff check`
+- Check code formatting: `uv run ruff format --check`
+- Run tests: `uv run pytest -v`
+
+## Unit-Tests
+- On Linux systems, run: `uv run pytest -v`
+- On Windows systems, run:
+    ```powershell
+    uv pip uninstall pyspark
+    uv pip install databricks-connect==17.2.*
+    uv run --no-sync pytest -v
+    ```