Fix RTD version by importing from package

- Update docs/conf.py to dynamically import version from diff_diff.__version__
  instead of hardcoding it (was showing 0.6.0 instead of 1.0.2)
- Sync pyproject.toml version to 1.0.2 to match __init__.py

Author: claude

docs/conf.py

@@ -9,11 +9,13 @@
 # Add the project root to the path for autodoc
 sys.path.insert(0, os.path.abspath(".."))
 
+import diff_diff
+
 # -- Project information -----------------------------------------------------
 project = "diff-diff"
 copyright = "2026, diff-diff contributors"
 author = "diff-diff contributors"
-release = "0.6.0"
+release = diff_diff.__version__
 
 # -- General configuration ---------------------------------------------------
 extensions = [

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "diff-diff"
-version = "1.0.0"
+version = "1.0.2"
 description = "A library for Difference-in-Differences causal inference analysis"
 readme = "README.md"
 license = "MIT"