chore(release): align dev version with 1.0.3

Keep dev version metadata aligned with the current hotfix release while the rolling branch continues toward 1.1.0.

Evidence: the canonical APP_VERSION imports as 1.0.3 and the diff check is clean. This commit changes version metadata only; it does not tag or publish a release.

src/constants.py

@@ -4,7 +4,7 @@ import os
 
 from src.runtime_paths import get_app_root, get_default_data_dir
 
-APP_VERSION = "1.0.2"
+APP_VERSION = "1.0.3"
 
 # Base paths
 BASE_DIR = os.path.join(get_app_root(), "")