1521c4ae8c
Implement the ACMS context strategy registry per spec §25162-25233, §28682-28708, §42628-42653, and §43167-43199. - Define ContextStrategy protocol, StrategyCapabilities, BackendSet, PlanContext, StrategyConfig, ContextStrategyResult models - Add 6 built-in stub strategies (simple-keyword, semantic-embedding, breadth-depth-navigator, arce, temporal-archaeology, plan-decision-context) with spec quality scores and feature flags - Add StrategyRegistry with register, register_from_module (plugin discovery), enable/disable, per-strategy config, and validation - Add ContextStrategyResult with deterministic fragment ordering (-relevance_score, uko_node) - Add configuration-driven enabled list with per-project overrides - Add per-strategy timeout, max-fragment, circuit-breaker config - Add registry validation for resource types and backend capabilities - Fix update_config to sync _enabled_order when toggling enabled flag - Fix register_from_module to honour the name parameter as registry key - Fix update_config to re-run Pydantic validators via model_validate - Add docs/reference/context_strategies.md - Add 55 BDD scenarios (Behave), 4 Robot integration tests, ASV benchmarks ISSUES CLOSED: #191