feat: implement AEW v2.1 SCC Cognitive Contract protocol

[projectedanx]

This PR implements the Antifragile Epistemic Weaver (AEW) v2.1 SCC Protocol, effectively serving as the "Paradox Metabolizer".

Key features:

1. AEWCognitiveContractSimulator: Uses the PluriversalFeatureDiscoveryAgent to enact Chain-of-Code simulations. It validates paraconsistent hypotheses while enforcing rigid constraints: Topological Novelty (β1 > 0.7) and Structural Conservation (β0 > 0.9).
2. ADR-22: Pluriversal Cognitive Coding Contract formalized the AEW protocol in docs/adr/22-aew-cognitive-contract.md.
3. Tests: Added test_aew_cognitive_contract.py validating the simulation routing and constraint rejection.
4. Documentation: Updated README.md and CHANGELOG.md reflecting the new agent architecture and paradox metabolism methodologies.

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PR created automatically by Jules for task 1985707235551194241 started by @projectedanx

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[gemini-code-assist]

Code Review

This pull request implements the Antifragile Epistemic Weaver (AEW) v2.1 SCC Protocol, introducing the AEWCognitiveContractSimulator class, ADR-22 documentation, README/CHANGELOG updates, and corresponding unit tests. The review feedback focuses on improving code quality and robustness within aew_cognitive_contract.py by removing an unused numpy import, enabling dependency injection for the agent in the simulator's constructor, and adding input validation for the simulation parameters to prevent runtime type errors.

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