v2.0.0

Initial public release.

• 6 MCP tools: AoT, AoT-light, atomcommands, export_graph, generate_visualization, check_approval
• 5 atom types with confidence thresholds (Premise, Reasoning, Hypothesis, Verification, Conclusion)
• Interactive D3.js force-directed visualization with approve/reject workflow
• CLI flags: --mode, --max-depth, --no-viz, --no-approval, --output-dir, --downloads-dir
• Docker and Smithery support
• 121 tests