v0.3.11

What's new

Fix: Louvain fallback hang on large sparse graphs (#48)

• Added max_level=10, threshold=1e-4 to NetworkX Louvain fallback
• Prevents indefinite hang on large sparse graphs (49K+ nodes, low density)
• Equivalent community quality on typical corpora
• Only affects users without graspologic installed (Leiden is unaffected)