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-builder-setup/assets/module-help.csv

@@ -0,0 +1,9 @@
+module,skill,display-name,menu-code,description,action,args,phase,after,before,required,output-location,outputs
+BMad Builder,bmad-builder-setup,Setup Builder Module,SB,"Install or update BMad Builder module config and help entries. Collects user preferences, writes config.yaml, and migrates legacy configs.",configure,,anytime,,,false,{project-root}/_bmad,config.yaml and config.user.yaml
+BMad Builder,bmad-agent-builder,Build an Agent,BA,"Create, edit, convert, or fix an agent skill.",build-process,"[-H] [description | path]",anytime,,bmad-agent-builder:quality-optimizer,false,output_folder,agent skill
+BMad Builder,bmad-agent-builder,Optimize an Agent,OA,Validate and optimize an existing agent skill. Produces a quality report.,quality-optimizer,[-H] [path],anytime,bmad-agent-builder:build-process,,false,bmad_builder_reports,quality report
+BMad Builder,bmad-workflow-builder,Build a Workflow,BW,"Create, edit, convert, or fix a workflow or utility skill.",build-process,"[-H] [description | path]",anytime,,bmad-workflow-builder:quality-optimizer,false,output_folder,workflow skill
+BMad Builder,bmad-workflow-builder,Optimize a Workflow,OW,Validate and optimize an existing workflow or utility skill. Produces a quality report.,quality-optimizer,[-H] [path],anytime,bmad-workflow-builder:build-process,,false,bmad_builder_reports,quality report
+BMad Builder,bmad-module-builder,Ideate Module,IM,"Brainstorm and plan a BMad module — explore ideas, decide architecture, and produce a build plan.",ideate-module,,anytime,,bmad-module-builder:create-module,false,bmad_builder_reports,module plan
+BMad Builder,bmad-module-builder,Create Module,CM,"Scaffold a setup skill into an existing folder of built skills, making it an installable BMad module.",create-module,"[-H] [path]",anytime,bmad-module-builder:ideate-module,,false,bmad_builder_output_folder,setup skill
+BMad Builder,bmad-module-builder,Validate Module,VM,"Check that a module's setup skill is complete, accurate, and all capabilities are properly registered.",validate-module,[path],anytime,bmad-module-builder:create-module,,false,bmad_builder_reports,validation report

.agents/skills/bmad-builder-setup/assets/module.yaml

@@ -0,0 +1,20 @@
+code: bmb
+name: "BMad Builder"
+description: "Standard Skill Compliant Factory for BMad Agents, Workflows and Modules"
+module_version: 1.0.0
+default_selected: false
+module_greeting: >
+  Enjoy making your dream creations with the BMad Builder Module!
+  Run this again at any time if you want to reconfigure a setting or have updated the module, (or optionally just update _bmad/config.yaml and config.user.yaml to change existing values)
+
+  For questions, suggestions and support - check us on Discord at https://discord.gg/gk8jAdXWmj
+
+bmad_builder_output_folder:
+  prompt: "Where should your custom output (agent, workflow, module config) be saved?"
+  default: "{project-root}/skills"
+  result: "{project-root}/{value}"
+
+bmad_builder_reports:
+  prompt: "Output for Evals, Test, Quality and Planning Reports?"
+  default: "{project-root}/skills/reports"
+  result: "{project-root}/{value}"