refactor: rename 'recit' to 'narrative' for English code naming

- Rename store: recit.js → narrative.js (useRecitStore → useNarrativeStore)
- Rename templates: recit.php/json.php → narrative.php/json.php
- Rename blueprint: recit.yml → narrative.yml
- Update all imports and references in Vue/JS files
- Update PHP template references and data attributes
- Update CLAUDE.md documentation
- Create comprehensive README.md with English-French dictionary

The dictionary section maps English code terms to French content terms
for easier navigation between codebase and CMS content.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

public/site/templates/recit.php

@@ -1,33 +0,0 @@
-<?php
-/**
- * Template pour afficher un récit
- * Ce template est requis pour que recit.json.php fonctionne
- */
-?>
-<?php snippet('header') ?>
-
-<article class="recit">
-  <h1><?= $page->title() ?></h1>
-
-  <?php if ($page->author()->isNotEmpty()): ?>
-    <p class="author"><?= $page->author() ?></p>
-  <?php endif ?>
-
-  <?php if ($page->cover()->isNotEmpty()): ?>
-    <figure class="cover">
-      <?php if ($cover = $page->cover()->toFile()): ?>
-        <img src="<?= $cover->url() ?>" alt="">
-      <?php endif ?>
-    </figure>
-  <?php endif ?>
-
-  <?php if ($page->introduction()->isNotEmpty()): ?>
-    <div class="introduction">
-      <?= $page->introduction() ?>
-    </div>
-  <?php endif ?>
-
-  <p><a href="<?= $page->url() ?>/print">Ouvrir l'éditeur d'impression</a></p>
-</article>
-
-<?php snippet('footer') ?>