Add SOMA — framework-first cognitive architecture with self-evolving reasoning

[sunyan999999]

SOMA (Somatic Wisdom Architecture) is a lightweight cognitive framework that gives AI agents explicit reasoning capabilities — not just memory retrieval.

Key differentiators:

• Wisdom framework: 7 thinking laws (first-principles, systems thinking, etc.) for systematic problem decomposition
• Bidirectional activation: vector search + keyword RRF, both directions compete for true relevance
• Meta-evolution: auto-adjusts thinking law weights based on success/failure feedback
• Zero infrastructure: SQLite + ONNX, no vector DB or GPU required
• Dashboard: Vue 3 UI with real-time framework monitoring, benchmarks, and analytics
• 139 tests, ~97% coverage, Apache 2.0

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