fix .readthedocs.yaml to install python deps from requirements-docs.txt

Author: pythonweb2

.readthedocs.yaml

@@ -7,3 +7,7 @@ build:
 
 sphinx:
   configuration: docs/conf.py
+
+python:
+  install:
+    - requirements: requirements-docs.txt

docs/conf.py

@@ -10,18 +10,7 @@
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 
-import sys
-from pathlib import Path
-
-# Ensure the project's src-based package layout is discoverable when building docs
-_DOCS_DIR = Path(__file__).resolve().parent
-_PROJECT_ROOT = _DOCS_DIR.parent
-_SRC_DIR = _PROJECT_ROOT / "src"
-
-# Insert the src directory so imports (e.g., `import HydroErr`) resolve correctly
-sys.path.insert(0, str(_SRC_DIR))
-
-import HydroErr  # noqa: E402
+import HydroErr
 
 # -- Project information -----------------------------------------------------