feat: Calculer automatiquement les moyennes après chaque saisie de notes

Les enseignants ont besoin de moyennes à jour immédiatement après la
publication ou modification des notes, sans attendre un batch nocturne.

Le système recalcule via Domain Events synchrones : statistiques
d'évaluation (min/max/moyenne/médiane), moyennes matières pondérées
(normalisation /20), et moyenne générale par élève. Les résultats sont
stockés dans des tables dénormalisées avec cache Redis (TTL 5 min).

Trois endpoints API exposent les données avec contrôle d'accès par rôle.
Une commande console permet le backfill des données historiques au
déploiement.

.agents/skills/bmad-teach-me-testing/templates/certificate-template.md

@@ -0,0 +1,86 @@
+---
+certificate_type: tea-academy-completion
+user: { { user_name } }
+role: { { role } }
+completion_date: { { completion_date } }
+started_date: { { started_date } }
+total_duration: { { total_duration } }
+average_score: { { average_score } }
+---
+
+# 🏆 TEA Academy Completion Certificate
+
+---
+
+## Certificate of Completion
+
+**This certifies that**
+
+## {{user_name}}
+
+**has successfully completed the TEA Academy testing curriculum**
+
+---
+
+### Program Details
+
+**Role:** {{role}}
+**Started:** {{started_date}}
+**Completed:** {{completion_date}}
+**Total Duration:** {{total_duration}}
+**Average Score:** {{average_score}}/100
+
+---
+
+### Sessions Completed
+
+✅ **Session 1:** Quick Start (30 min) - Score: {{session_01_score}}
+✅ **Session 2:** Core Concepts (45 min) - Score: {{session_02_score}}
+✅ **Session 3:** Architecture & Patterns (60 min) - Score: {{session_03_score}}
+✅ **Session 4:** Test Design (60 min) - Score: {{session_04_score}}
+✅ **Session 5:** ATDD & Automate (60 min) - Score: {{session_05_score}}
+✅ **Session 6:** Quality & Trace (45 min) - Score: {{session_06_score}}
+✅ **Session 7:** Advanced Patterns (ongoing) - Score: {{session_07_score}}
+
+---
+
+### Skills Acquired
+
+{{user_name}} has demonstrated proficiency in:
+
+- ✅ **Testing Fundamentals:** Risk-based testing, test pyramid, test types
+- ✅ **TEA Methodology:** 9 workflows, engagement models, quality standards
+- ✅ **Architecture Patterns:** Fixtures, network-first patterns, data factories
+- ✅ **Test Design:** Risk assessment, coverage planning, P0-P3 prioritization
+- ✅ **Test Development:** ATDD red-green approach, test automation
+- ✅ **Quality Assurance:** Test review, traceability, NFR assessment
+- ✅ **Advanced Techniques:** 42 knowledge fragments explored
+
+---
+
+### Learning Artifacts
+
+All session notes and progress tracking available at:
+`{{artifacts_path}}`
+
+---
+
+### Next Steps
+
+**Recommended Actions:**
+
+1. Apply TEA principles to current project
+2. Run TEA workflows (Framework, Test Design, ATDD, Automate)
+3. Share knowledge with team members
+4. Continue exploring knowledge fragments as needed
+5. Contribute to TEA methodology improvements
+
+---
+
+**Generated by:** TEA Academy - Teach Me Testing Workflow
+**Module:** Test Architecture Enterprise (TEA)
+**Website:** <https://bmad-code-org.github.io/bmad-method-test-architecture-enterprise/>
+
+---
+
+🧪 **Master Test Architect and Quality Advisor**

.agents/skills/bmad-teach-me-testing/templates/progress-template.yaml

@@ -0,0 +1,95 @@
+---
+# TEA Academy Progress Tracking
+# This file tracks a learner's progress through the teaching workflow
+
+# User Information
+user: "{{user_name}}"
+role: "{{role}}" # qa | dev | lead | vp
+experience_level: "{{experience_level}}" # beginner | intermediate | experienced
+learning_goals: "{{learning_goals}}"
+pain_points: "{{pain_points}}" # optional
+
+# Session Tracking
+started_date: "{{current_date}}"
+last_session_date: "{{current_date}}"
+
+# Session Array - tracks completion status for all 7 sessions
+sessions:
+  - id: session-01-quickstart
+    name: "Quick Start"
+    duration: "30 min"
+    status: not-started # not-started | in-progress | completed
+    started_date: null
+    completed_date: null
+    score: null # 0-100
+    notes_artifact: null
+
+  - id: session-02-concepts
+    name: "Core Concepts"
+    duration: "45 min"
+    status: not-started
+    started_date: null
+    completed_date: null
+    score: null
+    notes_artifact: null
+
+  - id: session-03-architecture
+    name: "Architecture & Patterns"
+    duration: "60 min"
+    status: not-started
+    started_date: null
+    completed_date: null
+    score: null
+    notes_artifact: null
+
+  - id: session-04-test-design
+    name: "Test Design"
+    duration: "60 min"
+    status: not-started
+    started_date: null
+    completed_date: null
+    score: null
+    notes_artifact: null
+
+  - id: session-05-atdd-automate
+    name: "ATDD & Automate"
+    duration: "60 min"
+    status: not-started
+    started_date: null
+    completed_date: null
+    score: null
+    notes_artifact: null
+
+  - id: session-06-quality-trace
+    name: "Quality & Trace"
+    duration: "45 min"
+    status: not-started
+    started_date: null
+    completed_date: null
+    score: null
+    notes_artifact: null
+
+  - id: session-07-advanced
+    name: "Advanced Patterns"
+    duration: "ongoing"
+    status: not-started
+    started_date: null
+    completed_date: null
+    score: null
+    notes_artifact: null
+
+# Progress Metrics
+sessions_completed: 0
+total_sessions: 7
+completion_percentage: 0
+next_recommended: session-01-quickstart
+
+# Workflow Continuation Tracking (for continuable workflow)
+stepsCompleted: []
+lastStep: ""
+lastContinued: ""
+
+# Completion Certificate
+certificate_generated: false
+certificate_path: null
+completion_date: null

.agents/skills/bmad-teach-me-testing/templates/session-notes-template.md

@@ -0,0 +1,83 @@
+---
+session_id: { { session_id } }
+session_name: { { session_name } }
+user: { { user_name } }
+role: { { role } }
+completed_date: { { completed_date } }
+score: { { score } }
+duration: { { duration } }
+---
+
+# {{session_name}} - Session Notes
+
+**Learner:** {{user_name}} ({{role}})
+**Completed:** {{completed_date}}
+**Score:** {{score}}/100
+**Duration:** {{duration}}
+
+---
+
+## Session Objectives
+
+{{session_objectives}}
+
+---
+
+## Key Concepts Covered
+
+{{key_concepts}}
+
+---
+
+## TEA Resources Referenced
+
+### Documentation
+
+{{docs_referenced}}
+
+### Knowledge Fragments
+
+{{knowledge_fragments_referenced}}
+
+### Online Resources
+
+{{online_resources}}
+
+---
+
+## Quiz Results
+
+**Score:** {{score}}/100
+
+### Questions & Answers
+
+{{quiz_results}}
+
+---
+
+## Practical Examples
+
+{{practical_examples}}
+
+---
+
+## Key Takeaways
+
+{{key_takeaways}}
+
+---
+
+## Next Recommended Session
+
+{{next_recommended}}
+
+---
+
+## Additional Notes
+
+{{additional_notes}}
+
+---
+
+**Generated by:** TEA Academy - Teach Me Testing Workflow
+**Session Path:** Session {{session_number}} of 7