docs(graphify): add ActivityWatch knowledge graph visualization

- Generate AST-based knowledge graph with 404 nodes and 933 edges
- 27 communities showing code structure and relationships
- Interactive HTML visualization for exploring code architecture
- Report documenting main functional clusters

Generated with [Devin](https://cli.devin.ai/docs)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

graphify-out/cost.json

@@ -0,0 +1,12 @@
+{
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+    {
+      "date": "2026-05-03T05:54:08.099209+00:00",
+      "input_tokens": 0,
+      "output_tokens": 0,
+      "files": 56
+    }
+  ],
+  "total_input_tokens": 0,
+  "total_output_tokens": 0
+}