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-quick-dev/step-05-present.md

@@ -0,0 +1,63 @@
+---
+---
+
+# Step 5: Present
+
+## RULES
+
+- YOU MUST ALWAYS SPEAK OUTPUT in your Agent communication style with the config `{communication_language}`
+- NEVER auto-push.
+
+## INSTRUCTIONS
+
+### Generate Suggested Review Order
+
+Read `{baseline_commit}` from `{spec_file}` frontmatter and construct the diff of all changes since that commit.
+
+Append the review order as a `## Suggested Review Order` section to `{spec_file}` **after the last existing section**. Do not modify the Code Map.
+
+Build the trail as an ordered sequence of **stops** — clickable `path:line` references with brief framing — optimized for a human reviewer reading top-down to understand the change:
+
+1. **Order by concern, not by file.** Group stops by the conceptual concern they address (e.g., "validation logic", "schema change", "UI binding"). A single file may appear under multiple concerns.
+2. **Lead with the entry point** — the single highest-leverage file:line a reviewer should look at first to grasp the design intent.
+3. **Inside each concern**, order stops from most important / architecturally interesting to supporting. Lightly bias toward higher-risk or boundary-crossing stops.
+4. **End with peripherals** — tests, config, types, and other supporting changes come last.
+5. **Every code reference is a clickable spec-file-relative link.** Compute each link target as a relative path from `{spec_file}`'s directory to the changed file. Format each stop as a markdown link: `[short-name:line](../../path/to/file.ts#L42)`. Use a `#L` line anchor. Use the file's basename (or shortest unambiguous suffix) plus line number as the link text. The relative path must be dynamically derived — never hardcode the depth.
+6. **Each stop gets one ultra-concise line of framing** (≤15 words) — why this approach was chosen here and what it achieves in the context of the change. No paragraphs.
+
+Format each stop as framing first, link on the next indented line:
+
+```markdown
+## Suggested Review Order
+
+**{Concern name}**
+
+- {one-line framing}
+  [`file.ts:42`](../../src/path/to/file.ts#L42)
+
+- {one-line framing}
+  [`other.ts:17`](../../src/path/to/other.ts#L17)
+
+**{Next concern}**
+
+- {one-line framing}
+  [`file.ts:88`](../../src/path/to/file.ts#L88)
+```
+
+> The `../../` prefix above is illustrative — compute the actual relative path from `{spec_file}`'s directory to each target file.
+
+When there is only one concern, omit the bold label — just list the stops directly.
+
+### Commit and Present
+
+1. Change `{spec_file}` status to `done` in the frontmatter.
+2. If version control is available and the tree is dirty, create a local commit with a conventional message derived from the spec title.
+3. Open the spec in the user's editor so they can click through the Suggested Review Order:
+   - Resolve two absolute paths: (1) the repository root (`git rev-parse --show-toplevel` — returns the worktree root when in a worktree, project root otherwise; if this fails, fall back to the current working directory), (2) `{spec_file}`. Run `code -r "{absolute-root}" "{absolute-spec-file}"` — the root first so VS Code opens in the right context, then the spec file. Always double-quote paths to handle spaces and special characters.
+   - If `code` is not available (command fails), skip gracefully and tell the user the spec file path instead.
+4. Display summary of your work to the user, including the commit hash if one was created. Any file paths shown in conversation/terminal output must use CWD-relative format (no leading `/`) with `:line` notation (e.g., `src/path/file.ts:42`) for terminal clickability — the goal is to make paths clickable in terminal emulators. Include:
+   - A note that the spec is open in their editor (or the file path if it couldn't be opened). Mention that `{spec_file}` now contains a Suggested Review Order.
+   - **Navigation tip:** "Ctrl+click (Cmd+click on macOS) the links in the Suggested Review Order to jump to each stop."
+   - Offer to push and/or create a pull request.
+
+Workflow complete.