Ajout de captures d'écran de l'app Streamlit / Add Streamlit app screenshots

README.md

@@ -11,6 +11,21 @@ CEDD is a real-time monitoring system designed to detect **progressive emotional
 
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+### Screenshots / Captures d'ecran
+
+| | |
+|---|---|
+| ![Welcome screen (EN)](screenshots/accueil-en.png) | ![Ecran d'accueil (FR)](screenshots/accueil-fr.png) |
+| *Welcome screen with alert gauge and demo profiles (EN)* | *Ecran d'accueil avec jauge d'alerte et profils de demo (FR)* |
+| ![Demo conversation with drift detected (EN)](screenshots/conversation-demo-en.png) | ![Conversation demo avec derive detectee (FR)](screenshots/conversation-demo-fr.png) |
+| *9-message demo: drift detected, Orange level, active signals (EN)* | *Demo 9 messages : derive detectee, niveau Orange, signaux actifs (FR)* |
+| ![Feature radar and alert level history](screenshots/dashboard-radar-en.png) | ![Emotional flow streamgraph](screenshots/dashboard-streamgraph-en.png) |
+| *Feature radar (Msg 1 vs Msg 9) + alert level history / Radar des features + historique des niveaux* | *Emotional flow streamgraph + session statistics / Streamgraph du flux emotionnel + statistiques de session* |
+| ![Dark mode conversation (FR)](screenshots/conversation-demo-fr-sombre.png) | ![Dark mode dashboard](screenshots/dashboard-sombre.png) |
+| *Dark mode — conversation (FR) / Mode sombre — conversation (FR)* | *Dark mode — dashboard / Mode sombre — tableau de bord* |
+
+---
+
 ### Table of Contents
 
 - [Context & Motivation](#context--motivation)