Update dependency analysis artifacts
Generated comprehensive static dependency analysis for g3 workspace:
- graph.json: 108 nodes (9 crates, 99 files), 186 edges
- graph.summary.md: Overview with metrics, entrypoints, fan-in/fan-out rankings
- sccs.md: No cycles detected (DAG structure confirmed)
- layers.observed.md: 4-layer crate hierarchy identified
- hotspots.md: ui_writer.rs (15 fan-in), agent_mode.rs (13 fan-out) as key nodes
- limitations.md: Documents extraction methodology and caveats
Updated AGENTS.md with artifact documentation table.
Agent: euler