Fixed emotional arc retrieval

Launch frontend demo: Implemented live MEC MVP demo with dynamic emotion processing

Fix ERIS primary_emotion_code case sensitivity in Gradio UI; enable robust emotion normalization and blend detection; implement dynamic response strategy mapping; pipeline now correctly identifies and processes anger cues

Refactor MEC MVP pipeline: Integrate Codex Informer, HEIInference, and confidence routing logic

feat: Added Symbolic Reasoning Layer + HEI Integration