Initial hello world IBKR API connection.

README.md

@@ -15,15 +15,24 @@ This repository is at the planning and scaffolding stage. The machine learning m
 
 ## Environment
 
-Use `mise` to manage Python.
+Use `mise` to manage Python and `uv` to manage Python packages.
 
 ```sh
 mise install
-mise exec -- python --version
+mise exec -- uv sync
+mise exec -- uv run python --version
 ```
 
 The current local Python version is pinned in `.mise.toml`.
 
+## Dependencies
+
+Runtime dependencies are declared in `pyproject.toml`.
+
+- `ib-insync` for the IBKR API connection.
+- `pandas` for tabular candle data handling.
+- `pyarrow` for Parquet file support.
+
 ## Trading Safety
 
 The default target is paper trading. Real trading should only be added later with explicit configuration, clear documentation, and tests around order generation and broker integration.
@@ -33,3 +42,7 @@ Do not commit secrets such as IBKR credentials, account identifiers, API tokens,
 ## Documentation
 
 See [docs/README.md](docs/README.md) for the initial architecture notes and decision log.
+
+The first data collection design note is [docs/data-fetcher.md](docs/data-fetcher.md).
+
+Manual test instructions for the IBKR fetcher skeleton are in [docs/manual-test/README.md](docs/manual-test/README.md).