Enable pydocstyle (D) ruff rule and add more docs (#21)

* Use pydocstyle (D) rule with google convention

Add a ruff rule to catch missing documentation. Using google convention so that undocumented-param (D417) rule is enabled to catch missing params, xref https://docs.astral.sh/ruff/rules/undocumented-param. Extended to include D213 (instead of D212) and D410 rules too.

* Fix D100 Missing docstring in public module

* Fix D101 Missing docstring in public class

* Fix D103 Missing docstring in public function

Also ignore rule D205 to allow first sentence of docstring to wrap to multiple lines.

* Fix  D417 Missing argument description in the docstring

* Update indent in pyproject.toml file

tests/tools/test_overture.py

@@ -1,3 +1,5 @@
+"""Tests for Overture tool."""
+
 import os
 
 import geopandas as gpd
@@ -57,6 +59,7 @@ def geo_assistant_with_buffer_fixture():
 
 
 async def test_get_place():
+    """Ensure that `get_place` tool returns an Overture place given a place_name."""
     command = await get_place.ainvoke(
         ToolCall(
             name="get_place",
@@ -69,6 +72,10 @@ async def test_get_place():
 
 
 async def test_get_places_within_buffer(geo_assistant_with_buffer_fixture):
+    """
+    Ensure that `get_places_within_buffer` tool returns multiple Overture places that
+    fit match the category 'cafe' within a specific buffer area around a location.
+    """
     command = await get_places_within_buffer.ainvoke(
         ToolCall(
             name="get_places_within_buffer",