feat(ssa): Complete QPER architecture - Query, Planner, Execute, Reflection layers
Implement the full QPER intelligent analysis pipeline:
- Phase E+: Block-based standardization for all 7 R tools, DynamicReport renderer, Word export enhancement
- Phase Q: LLM intent parsing with dynamic Zod validation against real column names, ClarificationCard component, DataProfile is_id_like tagging
- Phase P: ConfigLoader with Zod schema validation and hot-reload API, DecisionTableService (4-dimension matching), FlowTemplateService with EPV protection, PlannedTrace audit output
- Phase R: ReflectionService with statistical slot injection, sensitivity analysis conflict rules, ConclusionReport with section reveal animation, conclusion caching API, graceful R error classification
End-to-end test: 40/40 passed across two complete analysis scenarios.
Co-authored-by: Cursor <cursoragent@cursor.com>