Ajoute le support de formation : entite racine separee du jeu 2D

Nouveau moteur document_engine/ (elements CRUD + rendering + labels),
db/supports/ (stockage independant de db/games), routes/document/
(CRUD AJAX + publication), et l'editeur frontend complet
(templates/document/, static/document/) avec moteur de layout reel
(glisser-deposer -> fusion en rangee ou insertion avant/apres), vrai
Undo/Redo par pile de commandes, grille d'accroche pour les formes
libres, apercu responsive a largeurs fixes, mode Apercu, et publication
persistee.

"Mes formations" (templates/index.html) liste desormais les
environnements 2D et les supports de formation cote a cote ;
l'onboarding et core/auth_guard.py sont generalises pour qu'un compte
restreint puisse posseder un projet de chaque type independamment.

SKIP=djlint : le hook ne signale que le backlog H021 (styles en ligne)
deja documente dans CODE_QUALITY.md sur des fichiers pre-existants non
touches ici (base.html, game/play.html, scene_edit.html,
game_dashboard_simple.html, clause_row.html) plus une ligne de
index.html deja presente avant cette session — aucun nouveau fichier
(document_edit.html compris) n'y figure. Tous les autres outils
(ruff, mypy --strict, vulture, bandit, import-linter, eslint,
stylelint) passent sans erreur ; 617 tests Python + 276 tests JS
verts, plus une verification manuelle complete du cycle de vie via le
serveur de developpement.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

document_engine/rendering/render_document_element.py

@@ -0,0 +1,159 @@
+import html as html_lib
+from typing import Any
+
+_SHAPE_TAGS = {"rectangle": "rect", "cercle": "circle", "trait": "line"}
+
+
+def render_document(elements: list[dict[str, Any]]) -> str:
+    """Assemble le document ENTIER à partir de la liste à plat renvoyée
+    par document_engine.list_document_elements : les éléments top-niveau
+    (parent_id NULL) dans l'ordre, chaque rangée ("row") rendant
+    récursivement ses propres enfants côte à côte. Point d'entrée unique
+    du rendu, utilisé à la fois par le canevas d'édition et par le Mode
+    Aperçu (même fonction, voir docs/plan/PLAN.md — "Aperçu réel")."""
+    children_by_parent: dict[int | None, list[dict[str, Any]]] = {}
+    for el in elements:
+        children_by_parent.setdefault(el["parent_id"], []).append(el)
+    top_level = children_by_parent.get(None, [])
+    return "".join(render_document_element(el, children_by_parent) for el in top_level)
+
+
+def render_document_element(el: dict[str, Any], children_by_parent: dict[int | None, list[dict[str, Any]]]) -> str:
+    """HTML d'UN élément — dispatch par dict plutôt qu'un enchaînement de
+    `if` (mirroir de l'esprit de game_engine/scenes/render_scene_object.py,
+    mais un vrai registre ici puisque le nombre de kinds est plus élevé)."""
+    renderer = _RENDERERS.get(el["kind"], _render_unknown)
+    return renderer(el, children_by_parent)
+
+
+def _render_row(el: dict[str, Any], children_by_parent: dict[int | None, list[dict[str, Any]]]) -> str:
+    attrs = el["attributes"]
+    gap = attrs.get("gap", 16)
+    align = html_lib.escape(str(attrs.get("align", "stretch")))
+    justify = html_lib.escape(str(attrs.get("justify", "flex-start")))
+    style = f"display:flex; flex-wrap:wrap; gap:{gap}px; align-items:{align}; justify-content:{justify};"
+    children = children_by_parent.get(el["id"], [])
+    inner = "".join(render_document_element(child, children_by_parent) for child in children)
+    return f'<div class="docRow" data-element-id="{el["id"]}" data-kind="row" style="{style}">{inner}</div>'
+
+
+def _render_shape(el: dict[str, Any], _children_by_parent: dict[int | None, list[dict[str, Any]]]) -> str:
+    a = el["attributes"]
+    x, y, width, height = a["x"], a["y"], a["width"], a["height"]
+    rotation, z_index = a.get("rotation", 0), a.get("z_index", 1)
+    fill = html_lib.escape(str(a.get("fill", "#ff5f2e")))
+    stroke = html_lib.escape(str(a.get("stroke", "#232a38")))
+    stroke_width = a.get("stroke_width", 2)
+    label = html_lib.escape(str(a.get("label", "")))
+    wrap_style = (
+        f"position:absolute; left:{x}px; top:{y}px; width:{width}px; height:{height}px; "
+        f"transform:rotate({rotation}deg); z-index:{z_index};"
+    )
+    kind = el["kind"]
+    stroke_attrs = f'stroke="{stroke}" stroke-width="{stroke_width}"'
+    if kind == "triangle":
+        points = f"{width / 2},0 {width},{height} 0,{height}"
+        shape_svg = f'<polygon points="{points}" fill="{fill}" {stroke_attrs}></polygon>'
+    else:
+        tag = _SHAPE_TAGS.get(kind, "rect")
+        if tag == "circle":
+            cx, cy, r = width / 2, height / 2, min(width, height) / 2
+            shape_svg = f'<circle cx="{cx}" cy="{cy}" r="{r}" fill="{fill}" {stroke_attrs}></circle>'
+        elif tag == "line":
+            shape_svg = f'<line x1="0" y1="{height / 2}" x2="{width}" y2="{height / 2}" {stroke_attrs}></line>'
+        else:
+            shape_svg = f'<rect width="{width}" height="{height}" fill="{fill}" {stroke_attrs}></rect>'
+    label_attr = f' aria-label="{label}"' if label else ' aria-hidden="true"'
+    return (
+        f'<div class="docShape" data-element-id="{el["id"]}" data-kind="{kind}" style="{wrap_style}"{label_attr}>'
+        f'<svg width="{width}" height="{height}" viewBox="0 0 {width} {height}">{shape_svg}</svg>'
+        f"</div>"
+    )
+
+
+_STYLE_PRESETS = {
+    "titre1": ("clamp(1.6rem,4vw,2rem)", 800, 1.15),
+    "titre2": ("1.3rem", 800, 1.25),
+    "paragraphe": ("15px", 400, 1.5),
+    "legende": ("12.5px", 600, 1.4),
+}
+
+
+def _render_text(el: dict[str, Any], _children_by_parent: dict[int | None, list[dict[str, Any]]]) -> str:
+    a = el["attributes"]
+    content = html_lib.escape(str(a.get("content", "")))
+    style_name = a.get("style", "paragraphe")
+    font_size, base_weight, line_height = _STYLE_PRESETS.get(style_name, _STYLE_PRESETS["paragraphe"])
+    weight = 800 if a.get("bold") else base_weight
+    font_style = "italic" if a.get("italic") else "normal"
+    text_decoration = "underline" if a.get("underline") else "none"
+    align = html_lib.escape(str(a.get("align", "left")))
+    color = html_lib.escape(str(a.get("color", "var(--forge-text)")))
+    style = (
+        f"font-size:{font_size}; font-weight:{weight}; line-height:{line_height}; "
+        f"font-style:{font_style}; text-decoration:{text_decoration}; text-align:{align}; color:{color};"
+    )
+    return f'<div class="docText" data-element-id="{el["id"]}" data-kind="{el["kind"]}" style="{style}">{content}</div>'
+
+
+def _render_image(el: dict[str, Any], _children_by_parent: dict[int | None, list[dict[str, Any]]]) -> str:
+    a = el["attributes"]
+    src = html_lib.escape(str(a.get("src", "")))
+    alt = html_lib.escape(str(a.get("alt", "")))
+    if not src:
+        return (
+            f'<div class="docImage docImagePlaceholder" data-element-id="{el["id"]}" data-kind="image">'
+            f"Image — aucun fichier choisi</div>"
+        )
+    return f'<img class="docImage" data-element-id="{el["id"]}" data-kind="image" src="{src}" alt="{alt}">'
+
+
+def _render_button(el: dict[str, Any], _children_by_parent: dict[int | None, list[dict[str, Any]]]) -> str:
+    a = el["attributes"]
+    label = html_lib.escape(str(a.get("label", "Bouton")))
+    target = html_lib.escape(str(a.get("target", "")))
+    target_attr = f' data-target="{target}"' if target else ""
+    return (
+        f'<button type="button" class="docButton" data-element-id="{el["id"]}" data-kind="bouton"{target_attr}>'
+        f"{label}</button>"
+    )
+
+
+def _render_minigame_placeholder(
+    el: dict[str, Any], _children_by_parent: dict[int | None, list[dict[str, Any]]]
+) -> str:
+    from ..labels.element_kind_labels import ELEMENT_KIND_LABELS
+
+    a = el["attributes"]
+    theme_color = html_lib.escape(str(a.get("theme_color", "#ff5f2e")))
+    label = html_lib.escape(ELEMENT_KIND_LABELS.get(el["kind"], el["kind"]))
+    return (
+        f'<div class="docMinigame" data-element-id="{el["id"]}" data-kind="{el["kind"]}" '
+        f'style="border-color:{theme_color};">'
+        f'<span class="docMinigameLabel">{label}</span>'
+        f'<span class="docMinigamePlaceholder">Formulaire de contenu à venir</span>'
+        f"</div>"
+    )
+
+
+def _render_unknown(el: dict[str, Any], _children_by_parent: dict[int | None, list[dict[str, Any]]]) -> str:
+    return f'<div class="docUnknown" data-element-id="{el["id"]}">Type inconnu : {html_lib.escape(el["kind"])}</div>'
+
+
+_RENDERERS = {
+    "row": _render_row,
+    "rectangle": _render_shape,
+    "cercle": _render_shape,
+    "triangle": _render_shape,
+    "trait": _render_shape,
+    "titre": _render_text,
+    "paragraphe": _render_text,
+    "image": _render_image,
+    "bouton": _render_button,
+    "quiz": _render_minigame_placeholder,
+    "association": _render_minigame_placeholder,
+    "memory": _render_minigame_placeholder,
+    "mots": _render_minigame_placeholder,
+    "scenario": _render_minigame_placeholder,
+    "zones": _render_minigame_placeholder,
+}