Run Playwright test with the right venv.

.github/workflows/test.yaml

@@ -81,6 +81,7 @@ jobs:
 
       - name: Run Playwright tests
         run: |
+          source .venv/bin/activate
           cd lynxkite-app/web
           npm run build
           npm run test

examples/word2vec.py

@@ -1,5 +1,4 @@
 from lynxkite.core.ops import op
-import staticvectors
 import pandas as pd
 
 ENV = "LynxKite Graph Analytics"
@@ -7,6 +6,8 @@ ENV = "LynxKite Graph Analytics"
 
 @op(ENV, "Word2vec for the top 1000 words", slow=True)
 def word2vec_1000():
+    import staticvectors
+
     model = staticvectors.StaticVectors("neuml/word2vec-quantized")
     df = pd.read_csv(
         "https://gist.githubusercontent.com/deekayen/4148741/raw/98d35708fa344717d8eee15d11987de6c8e26d7d/1-1000.txt",