Fern: generated SDK post processing (#3840)

scripts/fern_build_python_sdk.sh

@@ -2,4 +2,14 @@
 
 CURRENT_VERSION=$(grep '^version = ' pyproject.toml | sed 's/version = "\(.*\)"/\1/')
 fern generate --group python-sdk --log-level debug --version "$CURRENT_VERSION" --preview
-cp -rf fern/.preview/fern-python-sdk/src/skyvern/* skyvern/client/
+cp -rf fern/.preview/fern-python-sdk/src/skyvern/* skyvern/client/
+
+# Post-processing: Patch version.py to handle missing metadata gracefully
+VERSION_FILE="skyvern/client/version.py"
+if [ -f "$VERSION_FILE" ]; then
+    sed -i.bak 's/__version__ = metadata\.version("skyvern")/try:\
+    __version__ = metadata.version("skyvern")\
+except Exception:\
+    __version__ = "0.0.0"/' "$VERSION_FILE"
+    rm -f "${VERSION_FILE}.bak"
+fi