chore: session 2 snapshot — archive before Bricks-first restart

Snapshots the project at the end of session 2, just before resetting to a
Bricks-first orthodox architecture. RESTART-PLAN.md at the root explains
why this approach is being abandoned and what the next session will look like.

Why we restart
- Three architectures got stacked: Custom PHP Templates → Gutenberg blocks
  in post_content → Bricks data in post meta. Each layer fights the next.
- Bricks Builder UI does not load because our header.php / footer.php /
  page.php emit chrome that conflicts with Bricks' own template-parts.
- CSS overrides multiplied (Gutenberg + Bricks variants) and still don't
  pixel-match the original PHP-rendered visual.
- 8+ one-shot mu-plugins live in LocalWP to patch over inconsistencies.

What survives the restart (preserved here on main)
- BRIEF, both PDFs, .txt extracts (sources of truth)
- assets/css/tokens.css (full design system, untouched)
- assets/fonts/Inter-Variable*.woff2 (RGPD self-hosted)
- inc/<section>-data.php files (text copy from PDF strategie, will become
  /content-source/ on next session for reuse as translation dictionary
  and as input to programmatic page generation)
- The Git repo, remote, branch main
- LocalWP site, Bricks v2.3.4, WPML 4.9.3 with active licenses
- WPML EN + FR setup with directory URL strategy

What gets wiped at the start of next session
- wp-content/themes/asterion-bricks/header.php / footer.php / page.php /
  index.php / front-page.php / template-parts/ / templates/
- inc/render-blocks.php, inc/render-blocks-native.php, inc/render-bricks.php
- inc/shortcodes.php, inc/i18n.php, inc/form-handler.php
- 35+ WP pages created over the session
- All one-shot mu-plugins in LocalWP/wp-content/mu-plugins/

Restart approach (detailed in RESTART-PLAN.md)
- Minimalist child theme: style.css, functions.php, theme.json, tokens.css,
  trimmed utilities.css, fonts, inc/cpt.php — that's it.
- No header.php / footer.php / page.php in child theme — Bricks Templates
  (Header / Footer / Single — Page) take over via Bricks' Conditions.
- User builds 5-7 archetype Bricks templates visually (~1-2h each) then
  programmatic generation fills the variants from inc/*-data.php sources.
- WPML duplication after EN is validated.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

wp-content/themes/asterion-bricks/functions.php

@@ -103,7 +103,9 @@ $av_includes = [
     'inc/cpt.php',           // Custom post types: case_study, scenario.
     'inc/seo.php',           // Schema.org JSON-LD overrides.
     'inc/form-handler.php',  // Conversion form POST handler.
-    'inc/render-blocks.php', // Data array → Gutenberg HTML for the migrator.
+    'inc/render-blocks.php',        // Data array → core/html migrator (legacy, kept for fallback).
+    'inc/render-blocks-native.php', // Data array → native Gutenberg blocks (legacy POC).
+    'inc/render-bricks.php',        // Data array → Bricks Builder native elements (current target).
     'inc/shortcodes.php',    // [av_form slug="..."] etc.
 ];
 
@@ -150,10 +152,20 @@ add_action('after_setup_theme', function () {
 });
 
 /**
- * Disable Gutenberg block library default styles when Bricks is active —
+ * Disable Gutenberg block library default styles on the public frontend only —
  * we own typography end-to-end through tokens.css.
+ *
+ * Skipped when:
+ *   - inside the Bricks Builder canvas (?bricks=run, ?brickspreview=1) — those
+ *     screens rely on the WP-core stylesheets for their own UI / preview.
+ *   - in the WP admin itself.
  */
 add_action('wp_enqueue_scripts', function () {
+    if (is_admin()) return;
+    if (function_exists('bricks_is_builder') && bricks_is_builder()) return;
+    if (function_exists('bricks_is_frontend_builder_iframe') && bricks_is_frontend_builder_iframe()) return;
+    if (! empty($_GET['bricks']) || ! empty($_GET['brickspreview'])) return;
+
     wp_dequeue_style('wp-block-library');
     wp_dequeue_style('wp-block-library-theme');
     wp_dequeue_style('global-styles');