move to indexedb and add about page

website/src/main.jsx

@@ -8,15 +8,23 @@ import { INITIAL_DIABLO4_STATE, INITIAL_MHWILDS_STATE, loadDiablo4Data, loadMhwi
 import { AddToolControls, ToolboxModules, TOOLBOX_MODULES } from "./features/toolboxes/modules/index.jsx";
 import { usePointerReorder } from "./hooks/usePointerReorder.js";
 import { lockBodyScroll } from "./utils/bodyScrollLock.js";
+import {
+  getAllModuleData as dbGetAllModuleData,
+  getLinks as dbGetLinks,
+  getSetting as dbGetSetting,
+  getStorageEstimate,
+  getToolboxes as dbGetToolboxes,
+  removeModuleData as dbRemoveModuleData,
+  removeModuleDataKeys as dbRemoveModuleDataKeys,
+  setLinks as dbSetLinks,
+  setModuleData as dbSetModuleData,
+  setSetting as dbSetSetting,
+  setToolboxes as dbSetToolboxes
+} from "./utils/indexedDbStorage.js";
 
-const STORAGE_KEYS = {
-  registry: "sokkog:toolboxes",
-  links: "sokkog:game-toolbox-links",
-  drawerWidth: "sokkog:drawer-width"
-};
-const APP_STORAGE_PREFIX = "sokkog:";
-const APP_STORAGE_LIMIT_BYTES = 5 * 1024 * 1024;
 const APP_STORAGE_WARNING_RATIO = 0.85;
+const APP_STORAGE_SOFT_LIMIT_BYTES = 250 * 1024 * 1024;
+const DRAWER_WIDTH_SETTING = "drawerWidth";
 const ID_PREFIXES = { tbx: "t", mod: "m", item: "i", shot: "s", link: "l", counter: "c", calc: "r", marker: "k" };
 const ID_ALPHABET = "abcdefghijklmnopqrstuvwxyz0123456789";
 const TOOLBOX_ICON_BASE = "/static/img/toolbox-icons/";
@@ -46,7 +54,7 @@ const DEFAULT_TOOLBOX_ICON = `${TOOLBOX_ICON_BASE}toolbox.png`;
 
 const DEFAULT_SITE_CONTENT = {
   brand: { name: "Sokko G", homeAriaLabel: "Accueil Sokko G" },
-  navigation: { home: "Accueil", toolboxes: "Toolboxes", games: "Jeux", mobileGames: "Infos" },
+  navigation: { home: "Accueil", toolboxes: "Toolboxes", games: "Jeux", about: "C'est quoi Sokko G ?", mobileGames: "Infos" },
   sidebar: { badge: "", note: "" },
   topbar: { dashboard: "", toolbox: "", games: "" },
   gamesPage: {
@@ -78,11 +86,30 @@ const DEFAULT_SITE_CONTENT = {
       caption: "",
       lines: []
     },
+    aboutLink: "Comprendre Sokko G",
     legal: {
       copyright: "",
       disclaimer: ""
     }
   },
+  about: {
+    eyebrow: "À propos",
+    title: "C'est quoi Sokko G ?",
+    description: "Sokko G est une webapp locale pensée pour garder les bons outils et les bonnes informations à portée de main pendant une session gaming.",
+    sections: [],
+    toolsTitle: "Outils disponibles",
+    tools: [
+      { icon: "notepad", name: "Bloc notes", description: "Notes rapides pendant une session." },
+      { icon: "checklist", name: "Checklist", description: "Objectifs et quantités à suivre." },
+      { icon: "picture", name: "Images", description: "Images ajoutées par fichier ou collage." },
+      { icon: "map", name: "Annotation d'images", description: "Marqueurs sur une carte ou un plan." },
+      { icon: "link", name: "Liens", description: "Raccourcis vers guides, builds ou cartes." },
+      { icon: "abacus", name: "Compteurs", description: "Scores, ressources, essais ou résultats." },
+      { icon: "calculator", name: "Calculateur", description: "Calculs enregistrés et chaînes de craft." }
+    ],
+    limitsTitle: "À retenir",
+    limits: []
+  },
   toolboxes: {
     eyebrow: "",
     title: "Toolboxes",
@@ -194,51 +221,13 @@ function uid(prefix) {
   return `${ID_PREFIXES[prefix] || "x"}${randomToken()}`;
 }
 
-function readJson(key, fallback) {
-  try {
-    const value = localStorage.getItem(key);
-    return value ? JSON.parse(value) : fallback;
-  } catch {
-    return fallback;
-  }
-}
-
-function stringStorageBytes(value) {
-  return String(value || "").length * 2;
-}
-
-function getAppStorageUsage(projected = {}) {
-  let used = 0;
-  for (let index = 0; index < localStorage.length; index += 1) {
-    const key = localStorage.key(index);
-    if (!key?.startsWith(APP_STORAGE_PREFIX) || Object.prototype.hasOwnProperty.call(projected, key)) continue;
-    used += stringStorageBytes(key) + stringStorageBytes(localStorage.getItem(key));
-  }
-  Object.entries(projected).forEach(([key, value]) => {
-    if (!key.startsWith(APP_STORAGE_PREFIX) || value == null) return;
-    used += stringStorageBytes(key) + stringStorageBytes(value);
-  });
-  return { used, limit: APP_STORAGE_LIMIT_BYTES, ratio: Math.min(1, used / APP_STORAGE_LIMIT_BYTES) };
-}
-
 function formatBytes(bytes) {
+  if (!Number.isFinite(bytes) || bytes <= 0) return "0 o";
   if (bytes >= 1024 * 1024) return `${(bytes / 1024 / 1024).toFixed(1).replace(".", ",")} Mio`;
   if (bytes >= 1024) return `${Math.ceil(bytes / 1024)} Kio`;
   return `${bytes} o`;
 }
 
-function writeStorageValue(key, value) {
-  const projectedUsage = getAppStorageUsage({ [key]: value });
-  if (projectedUsage.used > APP_STORAGE_LIMIT_BYTES) {
-    throw new Error(`Quota local atteint (${formatBytes(projectedUsage.used)} / ${formatBytes(projectedUsage.limit)}).`);
-  }
-  localStorage.setItem(key, value);
-}
-
-function writeJson(key, value) {
-  writeStorageValue(key, JSON.stringify(value));
-}
-
 function getDefaultModuleTitle(type) {
   return TOOLBOX_MODULES[type]?.label || "Outil";
 }
@@ -295,37 +284,14 @@ function compactToolboxesForStorage(toolboxes) {
   return (Array.isArray(toolboxes) ? toolboxes : []).map(compactToolboxForStorage).filter(Boolean);
 }
 
-function loadToolboxes() {
-  return (Array.isArray(readJson(STORAGE_KEYS.registry, [])) ? readJson(STORAGE_KEYS.registry, []) : [])
-    .map(normalizeToolbox)
-    .filter(Boolean);
-}
-
-function saveToolboxes(toolboxes) {
-  writeJson(STORAGE_KEYS.registry, compactToolboxesForStorage(toolboxes));
-}
-
-function loadLinks() {
-  return readJson(STORAGE_KEYS.links, {});
-}
-
-function saveLinks(links) {
-  writeJson(STORAGE_KEYS.links, links);
-}
-
 function moduleStorageKey(toolboxId, moduleId) {
-  return `sokkog:toolbox:${toolboxId}:module:${moduleId}`;
+  return `${toolboxId}:${moduleId}`;
 }
 
 function globalModuleKey(toolboxId, moduleId) {
   return `${toolboxId}:${moduleId}`;
 }
 
-function getModuleData(toolboxId, moduleId, fallback) {
-  const value = readJson(moduleStorageKey(toolboxId, moduleId), undefined);
-  return value == null ? fallback : value;
-}
-
 function parsePositiveInt(value, fallback = 1) {
   const parsed = Number.parseInt(value, 10);
   return Number.isFinite(parsed) && parsed > 0 ? parsed : fallback;
@@ -517,15 +483,9 @@ function compactModuleDataForStorage(type, value) {
   return value;
 }
 
-function setModuleData(toolboxes, toolboxId, moduleId, value, moduleType = "") {
+function prepareModuleDataForStorage(toolboxes, toolboxId, moduleId, value, moduleType = "") {
   const module = toolboxes.find((toolbox) => toolbox.id === toolboxId)?.modules.find((item) => item.id === moduleId);
-  const compact = compactModuleDataForStorage(moduleType || module?.type, value);
-  const key = moduleStorageKey(toolboxId, moduleId);
-  if (compact == null) {
-    localStorage.removeItem(key);
-    return;
-  }
-  writeJson(key, compact);
+  return compactModuleDataForStorage(moduleType || module?.type, value);
 }
 
 function createExportIdFactory() {
@@ -578,7 +538,7 @@ function remapModuleDataForExport(type, data, nextId) {
   return compact;
 }
 
-function createToolboxExportPayload(toolbox) {
+function createToolboxExportPayload(toolbox, moduleData) {
   const source = normalizeToolbox(toolbox);
   const nextId = createExportIdFactory();
   const moduleIdMap = new Map();
@@ -594,17 +554,17 @@ function createToolboxExportPayload(toolbox) {
   const modules = Object.fromEntries(source.modules
     .map((module) => [
       moduleIdMap.get(module.id),
-      remapModuleDataForExport(module.type, getModuleData(source.id, module.id, null), nextId)
+      remapModuleDataForExport(module.type, moduleData[moduleStorageKey(source.id, module.id)] || null, nextId)
     ])
     .filter(([, data]) => data != null));
   return { toolbox: exportedToolbox, modules };
 }
 
-function createGlobalExportPayload(toolboxes, links) {
+function createGlobalExportPayload(toolboxes, links, moduleData) {
   const modules = {};
   toolboxes.forEach((toolbox) => {
     toolbox.modules.forEach((module) => {
-      const data = compactModuleDataForStorage(module.type, getModuleData(toolbox.id, module.id, null));
+      const data = compactModuleDataForStorage(module.type, moduleData[moduleStorageKey(toolbox.id, module.id)] || null);
       if (data) modules[globalModuleKey(toolbox.id, module.id)] = data;
     });
   });
@@ -707,56 +667,118 @@ function useModalScrollLock() {
   useEffect(() => lockBodyScroll(), []);
 }
 
-function useLocalToolboxes(onError) {
-  const [toolboxes, setToolboxesState] = useState(loadToolboxes);
-  const [links, setLinksState] = useState(loadLinks);
-  const [, setQuotaTick] = useState(0);
+function useIndexedToolboxes(onError) {
+  const [ready, setReady] = useState(false);
+  const [toolboxes, setToolboxesState] = useState([]);
+  const [links, setLinksState] = useState({});
+  const [moduleData, setModuleDataState] = useState({});
+  const [storageUsage, setStorageUsage] = useState({ used: 0, limit: 0, ratio: 0 });
 
-  function refreshQuota() {
-    setQuotaTick((value) => value + 1);
+  async function refreshQuota() {
+    try {
+      const estimate = await getStorageEstimate();
+      const used = estimate.usage || 0;
+      const limit = estimate.quota || 0;
+      setStorageUsage({ used, limit, ratio: limit ? Math.min(1, used / limit) : 0 });
+    } catch {
+      setStorageUsage({ used: 0, limit: 0, ratio: 0 });
+    }
   }
 
-  function persistToolboxes(nextToolboxes) {
-    try {
-      saveToolboxes(nextToolboxes);
-      setToolboxesState(loadToolboxes());
-      refreshQuota();
-      return true;
-    } catch (error) {
-      onError(error.message);
-      return false;
+  useEffect(() => {
+    let cancelled = false;
+    async function loadStore() {
+      try {
+        const [storedToolboxes, storedLinks, storedModules] = await Promise.all([
+          dbGetToolboxes(),
+          dbGetLinks(),
+          dbGetAllModuleData()
+        ]);
+        if (cancelled) return;
+        setToolboxesState((Array.isArray(storedToolboxes) ? storedToolboxes : []).map(normalizeToolbox).filter(Boolean));
+        setLinksState(storedLinks && typeof storedLinks === "object" ? storedLinks : {});
+        setModuleDataState(Object.fromEntries((storedModules || []).map((entry) => [entry.key, entry.data])));
+        setReady(true);
+        refreshQuota();
+      } catch (error) {
+        if (!cancelled) {
+          setReady(true);
+          onError(error.message || "Stockage IndexedDB indisponible.");
+        }
+      }
     }
+    loadStore();
+    return () => { cancelled = true; };
+  }, []);
+
+  function persistToolboxes(nextToolboxes) {
+    const normalized = compactToolboxesForStorage(nextToolboxes).map(normalizeToolbox).filter(Boolean);
+    setToolboxesState(normalized);
+    dbSetToolboxes(compactToolboxesForStorage(normalized))
+      .then(refreshQuota)
+      .catch((error) => onError(error.message));
+    return true;
   }
 
   function persistLinks(nextLinks) {
-    try {
-      saveLinks(nextLinks);
-      setLinksState(loadLinks());
-      refreshQuota();
-      return true;
-    } catch (error) {
-      onError(error.message);
-      return false;
-    }
+    setLinksState(nextLinks);
+    dbSetLinks(nextLinks)
+      .then(refreshQuota)
+      .catch((error) => onError(error.message));
+    return true;
+  }
+
+  function getModuleData(toolboxId, moduleId, fallback) {
+    const value = moduleData[moduleStorageKey(toolboxId, moduleId)];
+    return value == null ? fallback : value;
   }
 
   function updateModuleData(toolboxId, moduleId, value, moduleType = "") {
-    try {
-      setModuleData(toolboxes, toolboxId, moduleId, value, moduleType);
-      refreshQuota();
-      return true;
-    } catch (error) {
-      onError(error.message);
-      return false;
-    }
+    const compact = prepareModuleDataForStorage(toolboxes, toolboxId, moduleId, value, moduleType);
+    const key = moduleStorageKey(toolboxId, moduleId);
+    setModuleDataState((state) => {
+      const nextState = { ...state };
+      if (compact == null) delete nextState[key];
+      else nextState[key] = compact;
+      return nextState;
+    });
+    const operation = compact == null ? dbRemoveModuleData(key) : dbSetModuleData(key, compact);
+    operation.then(refreshQuota).catch((error) => onError(error.message));
+    return true;
+  }
+
+  function removeModuleData(toolboxId, moduleId) {
+    const key = moduleStorageKey(toolboxId, moduleId);
+    setModuleDataState((state) => {
+      const nextState = { ...state };
+      delete nextState[key];
+      return nextState;
+    });
+    dbRemoveModuleData(key).then(refreshQuota).catch((error) => onError(error.message));
+  }
+
+  function removeToolboxModuleData(toolbox) {
+    const keys = (toolbox?.modules || []).map((module) => moduleStorageKey(toolbox.id, module.id));
+    setModuleDataState((state) => {
+      const nextState = { ...state };
+      keys.forEach((key) => delete nextState[key]);
+      return nextState;
+    });
+    dbRemoveModuleDataKeys(keys).then(refreshQuota).catch((error) => onError(error.message));
   }
 
   return {
+    ready,
     toolboxes,
     links,
+    moduleData,
+    storageUsage,
     setToolboxes: persistToolboxes,
     setLinks: persistLinks,
+    getModuleData,
     updateModuleData,
+    removeModuleData,
+    removeToolboxModuleData,
     refreshQuota
   };
 }
@@ -779,7 +801,7 @@ function App() {
   const [drawerGameId, setDrawerGameId] = useState("");
   const [screenshot, setScreenshot] = useState(null);
   const [storageError, setStorageError] = useState("");
-  const store = useLocalToolboxes((message) => setStorageError(message));
+  const store = useIndexedToolboxes((message) => setStorageError(message));
 
   useEffect(() => {
     Promise.all([
@@ -842,7 +864,7 @@ function App() {
 
   function deleteToolbox(id) {
     const toolbox = store.toolboxes.find((item) => item.id === id);
-    toolbox?.modules.forEach((module) => localStorage.removeItem(moduleStorageKey(id, module.id)));
+    store.removeToolboxModuleData(toolbox);
     store.setToolboxes(store.toolboxes.filter((item) => item.id !== id));
     const nextLinks = { ...store.links };
     Object.entries(nextLinks).forEach(([gameId, toolboxId]) => {
@@ -866,7 +888,7 @@ function App() {
   async function addScreenshotFiles(toolboxId, moduleId, files) {
     const imageFiles = [...files].filter((file) => file?.type?.startsWith("image/"));
     if (!imageFiles.length) return false;
-    const data = getModuleData(toolboxId, moduleId, { shots: [] });
+    const data = store.getModuleData(toolboxId, moduleId, { shots: [] });
     for (const file of imageFiles) {
       data.shots.unshift({ id: uid("shot"), dataUrl: await compressImage(file) });
     }
@@ -886,7 +908,8 @@ function App() {
     if (!store.setToolboxes([imported, ...store.toolboxes])) return null;
     Object.entries(payload.modules || {}).forEach(([oldId, data]) => {
       const nextId = moduleIdMap.get(oldId);
-      if (nextId) store.updateModuleData(imported.id, nextId, data);
+      const module = imported.modules.find((item) => item.id === nextId);
+      if (nextId) store.updateModuleData(imported.id, nextId, data, module?.type);
     });
     if (gameId) linkToolboxToGame(gameId, imported.id);
     return imported;
@@ -914,10 +937,6 @@ function App() {
       const nextToolboxId = toolboxIdMap.get(oldToolboxId);
       if (nextToolboxId) nextLinks[gameId] = nextToolboxId;
     });
-    const projected = {
-      [STORAGE_KEYS.registry]: JSON.stringify(compactToolboxesForStorage([...importedToolboxes, ...store.toolboxes])),
-      [STORAGE_KEYS.links]: JSON.stringify(nextLinks)
-    };
     Object.entries(payload.modules).forEach(([key, data]) => {
       const [oldToolboxId] = key.split(":");
       const nextToolboxId = toolboxIdMap.get(oldToolboxId);
@@ -925,13 +944,10 @@ function App() {
       const toolbox = importedToolboxes.find((item) => item.id === nextToolboxId);
       const module = toolbox?.modules.find((item) => item.id === nextModuleId);
       const compact = compactModuleDataForStorage(module?.type, data);
-      if (nextToolboxId && nextModuleId && compact) projected[moduleStorageKey(nextToolboxId, nextModuleId)] = JSON.stringify(compact);
+      if (nextToolboxId && nextModuleId && compact) store.updateModuleData(nextToolboxId, nextModuleId, compact, module?.type);
     });
-    const projectedUsage = getAppStorageUsage(projected);
-    if (projectedUsage.used > APP_STORAGE_LIMIT_BYTES) throw new Error(`Quota local atteint (${formatBytes(projectedUsage.used)} / ${formatBytes(projectedUsage.limit)}).`);
-    Object.entries(projected).forEach(([key, value]) => writeStorageValue(key, value));
-    store.setToolboxes(loadToolboxes());
-    store.setLinks(loadLinks());
+    store.setToolboxes([...importedToolboxes, ...store.toolboxes]);
+    store.setLinks(nextLinks);
     store.refreshQuota();
   }
 
@@ -946,6 +962,7 @@ function App() {
     setDrawerGameId,
     setScreenshot,
     addScreenshotFiles,
+    removeModuleData: store.removeModuleData,
     updateModuleData: store.updateModuleData,
     updateToolboxOrder: (orderedIds) => {
       const order = new Map(orderedIds.map((id, index) => [id, index]));
@@ -983,9 +1000,9 @@ function App() {
     exportToolbox: (id) => {
       const toolbox = normalizeToolbox(store.toolboxes.find((item) => item.id === id));
       if (!toolbox) return;
-      downloadJson(createToolboxExportPayload(toolbox), `${toolbox.name.toLowerCase().replace(/[^a-z0-9]+/gi, "-")}.sokkog.json`);
+      downloadJson(createToolboxExportPayload(toolbox, store.moduleData), `${toolbox.name.toLowerCase().replace(/[^a-z0-9]+/gi, "-")}.sokkog.json`);
     },
-    exportAllToolboxes: () => downloadJson(createGlobalExportPayload(store.toolboxes, store.links), `sokkog-global-${new Date().toISOString().slice(0, 10)}.json`)
+    exportAllToolboxes: () => downloadJson(createGlobalExportPayload(store.toolboxes, store.links, store.moduleData), `sokkog-global-${new Date().toISOString().slice(0, 10)}.json`)
   };
 
   return (
@@ -1005,6 +1022,8 @@ function App() {
         getGame={getGame}
         getToolboxGame={getToolboxGame}
         actions={actions}
+        storageUsage={store.storageUsage}
+        getModuleData={store.getModuleData}
         updateToolbox={updateToolbox}
         updateModuleData={store.updateModuleData}
         addScreenshotFiles={addScreenshotFiles}
@@ -1017,6 +1036,8 @@ function App() {
           toolboxes={store.toolboxes}
           links={store.links}
           actions={actions}
+          storageUsage={store.storageUsage}
+          getModuleData={store.getModuleData}
           updateToolbox={updateToolbox}
           updateModuleData={store.updateModuleData}
           addScreenshotFiles={addScreenshotFiles}
@@ -1027,7 +1048,7 @@ function App() {
         setConfirmModal(null);
         onResolve?.(value);
       }} />}
-      {createModal && <CreateToolboxModal gameId={createModal.gameId || ""} onClose={(name) => {
+      {createModal && <CreateToolboxModal gameId={createModal.gameId || ""} initialName={getGame(createModal.gameId)?.title || ""} onClose={(name) => {
         const gameId = createModal.gameId || "";
         setCreateModal(null);
         if (!name) return;
@@ -1067,6 +1088,7 @@ function Shell({ route, content, games, toolboxes, links, actions, children }) {
           <a className={`nav-item ${route.startsWith("/games") ? "active" : ""}`} href="#/games"><span className="nav-icon nav-icon-controller" aria-hidden="true" /><strong>{content.navigation.games}</strong></a>
           <a className={`nav-item ${route.startsWith("/toolboxes") || route.startsWith("/toolbox") ? "active" : ""}`} href="#/toolboxes"><span className="nav-icon nav-icon-toolbox" aria-hidden="true" /><strong>{content.navigation.toolboxes}</strong></a>
         </nav>
+        <a className={`sidebar-about-link ${route === "/about" ? "active" : ""}`} href="#/about"><span className="sidebar-about-icon" aria-hidden="true">?</span><strong>{content.navigation.about}</strong></a>
         <div className="sidebar-note">
           <span className="badge">{content.sidebar.badge}</span>
           <p>{content.sidebar.note}</p>
@@ -1102,6 +1124,7 @@ function Shell({ route, content, games, toolboxes, links, actions, children }) {
 function RouteContent(props) {
   const { route } = props;
   if (route === "/") return <HomePage {...props} />;
+  if (route === "/about") return <AboutPage siteContent={props.siteContent} />;
   if (route === "/toolboxes") return <ToolboxesPage {...props} />;
   if (route.startsWith("/toolbox/")) return <ToolboxPage {...props} toolboxId={route.split("/")[2]} />;
   if (route === "/games") return <GamesPage {...props} />;
@@ -1130,7 +1153,7 @@ function HomePage({ siteContent, toolboxes }) {
           <article><strong>{toolCount}</strong><span>{toolCount > 1 ? content.stats.toolPlural : content.stats.toolSingular}</span></article>
         </div>
       </section>
-      <section className="origin-section" aria-labelledby="origin-title">
+      <section className="origin-section nebula-panel" aria-labelledby="origin-title">
         <div className="origin-copy">
           <p className="eyebrow">{content.origin.eyebrow}</p>
           <h2 id="origin-title">{content.origin.title}</h2>
@@ -1151,6 +1174,83 @@ function HomePage({ siteContent, toolboxes }) {
   );
 }
 
+function AboutPage({ siteContent }) {
+  const content = siteContent.about || DEFAULT_SITE_CONTENT.about;
+  const limits = Array.isArray(content.limits) ? content.limits : [];
+  const storageSectionIndex = content.sections.findIndex((section) => section.title.toLowerCase().includes("stockage"));
+  const normalizeReminder = (item, index) => typeof item === "string" ? { title: `Point ${index + 1}`, text: item, icon: "toolbox" } : item;
+  return (
+    <div className="about-page">
+      <section className="page-hero">
+        <div>
+          <p className="eyebrow">{content.eyebrow}</p>
+          <h1>{content.title}</h1>
+          <p>{content.description}</p>
+        </div>
+      </section>
+      <section className="about-story-section nebula-panel" aria-labelledby="about-story-title">
+        <div className="about-section-heading">
+          <p className="eyebrow">Principes</p>
+          <h2 id="about-story-title">Comment ça fonctionne</h2>
+        </div>
+        <div className="about-story-list">
+          {content.sections.map((section, index) => (
+            <article className="about-story-item" key={section.title}>
+              <span>{String(index + 1).padStart(2, "0")}</span>
+              <div>
+                <h3>{section.title}</h3>
+                <p>{section.text}</p>
+                {index === storageSectionIndex && limits.length > 0 && (
+                  <div className="about-storage-reminders">
+                    <p className="eyebrow">{content.limitsTitle}</p>
+                    <ul className="about-reminders-list">
+                      {limits.map((item, itemIndex) => {
+                        const reminder = normalizeReminder(item, itemIndex);
+                        return (
+                          <li className="about-reminder-item" key={reminder.title || reminder.text}>
+                            <span className="module-icon" aria-hidden="true">
+                              <span className={`module-icon-svg module-icon-${reminder.icon || "toolbox"}`} />
+                            </span>
+                            <div>
+                              <h4>{reminder.title}</h4>
+                              <p>{reminder.text}</p>
+                            </div>
+                          </li>
+                        );
+                      })}
+                    </ul>
+                  </div>
+                )}
+              </div>
+            </article>
+          ))}
+        </div>
+      </section>
+      <section className="about-tools-section nebula-panel">
+        <div className="page-heading">
+          <div>
+            <p className="eyebrow">Toolbox</p>
+            <h2>{content.toolsTitle}</h2>
+          </div>
+        </div>
+        <div className="about-tools-list">
+          {content.tools.map((tool) => (
+            <article className="about-tool-item" key={tool.name}>
+              <span className="module-icon" aria-hidden="true">
+                <span className={`module-icon-svg module-icon-${tool.icon || "notepad"}`} />
+              </span>
+              <div>
+                <h3>{tool.name}</h3>
+                <p>{tool.description}</p>
+              </div>
+            </article>
+          ))}
+        </div>
+      </section>
+    </div>
+  );
+}
+
 function DialogueLine({ line }) {
   return <p className={`dialogue-line dialogue-line-${line.speaker === "app" ? "app" : "user"}`}><RichText text={line.text || ""} /></p>;
 }
@@ -1169,7 +1269,7 @@ function RichText({ text }) {
   });
 }
 
-function ToolboxesPage({ siteContent, toolboxes, getToolboxGame, actions }) {
+function ToolboxesPage({ siteContent, toolboxes, getToolboxGame, actions, storageUsage }) {
   const content = siteContent.toolboxes;
   const updateToolboxOrder = actions.updateToolboxOrder;
   const {
@@ -1226,7 +1326,7 @@ function ToolboxesPage({ siteContent, toolboxes, getToolboxGame, actions }) {
           <div className="empty"><h2>{content.emptyTitle}</h2><p>{content.emptyText}</p></div>
         )}
       </section>
-      <StorageQuota />
+      <StorageQuota usage={storageUsage} />
     </div>
   );
 }
@@ -1237,7 +1337,7 @@ function StorageHelpCard({ help }) {
       <div className="card-body">
         <div className="storage-help-heading">
           <span className="storage-help-mark" aria-hidden="true" />
-          <div><p className="eyebrow">LocalStorage</p><h2 id="storage-help-title">{help.title}</h2></div>
+          <div><p className="eyebrow">IndexedDB</p><h2 id="storage-help-title">{help.title}</h2></div>
         </div>
         <p className="storage-help-intro">{help.text}</p>
         <ul className="storage-help-list">
@@ -1379,7 +1479,7 @@ function ToolboxGameIcon({ game }) {
   );
 }
 
-function ToolboxView({ siteContent, toolbox, toolboxGame, embedded, actions, updateToolbox, updateModuleData, addScreenshotFiles }) {
+function ToolboxView({ siteContent, toolbox, toolboxGame, embedded, actions, storageUsage, getModuleData, updateToolbox, updateModuleData, addScreenshotFiles }) {
   const moduleColumns = Number(toolbox.moduleColumns) === 1 ? 1 : 2;
   const toolboxGameCover = getGameCardCover(toolboxGame);
   const moduleText = siteContent?.toolboxes?.modules || DEFAULT_SITE_CONTENT.toolboxes.modules;
@@ -1475,27 +1575,35 @@ function ToolboxView({ siteContent, toolbox, toolboxGame, embedded, actions, upd
           danger: true,
           onResolve: (confirmed) => {
             if (!confirmed) return;
-            localStorage.removeItem(moduleStorageKey(toolbox.id, moduleId));
+            actions.removeModuleData(toolbox.id, moduleId);
             updateToolbox({ ...toolbox, modules: toolbox.modules.filter((module) => module.id !== moduleId) });
           }
         })}
         onMove={moveModule}
       />
-      {!embedded && <StorageQuota />}
+      {!embedded && <StorageQuota usage={storageUsage} />}
     </div>
   );
 }
 
-function ToolboxDrawer({ gameId, game, siteContent, toolboxes, links, actions, updateToolbox, updateModuleData, addScreenshotFiles }) {
+function ToolboxDrawer({ gameId, game, siteContent, toolboxes, links, actions, storageUsage, getModuleData, updateToolbox, updateModuleData, addScreenshotFiles }) {
   const selectedId = links[gameId] || "";
   const toolbox = toolboxes.find((item) => item.id === selectedId);
-  const [width, setWidth] = useState(() => {
-    const value = Number(localStorage.getItem(STORAGE_KEYS.drawerWidth));
-    if (!Number.isFinite(value) || value <= 0) return "";
-    return Math.min(Math.max(value, 360), Math.floor(window.innerWidth * 0.94));
-  });
+  const [width, setWidth] = useState("");
   const panelRef = useRef(null);
 
+  useEffect(() => {
+    let cancelled = false;
+    dbGetSetting(DRAWER_WIDTH_SETTING, "")
+      .then((storedWidth) => {
+        if (cancelled) return;
+        const value = Number(storedWidth);
+        if (Number.isFinite(value) && value > 0) setWidth(Math.min(Math.max(value, 360), Math.floor(window.innerWidth * 0.94)));
+      })
+      .catch(() => {});
+    return () => { cancelled = true; };
+  }, []);
+
   function startResize(event) {
     const panel = panelRef.current;
     if (!panel) return;
@@ -1508,7 +1616,7 @@ function ToolboxDrawer({ gameId, game, siteContent, toolboxes, links, actions, u
     const onMove = (moveEvent) => {
       const nextWidth = Math.min(Math.max(startWidth + startX - moveEvent.clientX, minWidth), maxWidth);
       setWidth(nextWidth);
-      writeStorageValue(STORAGE_KEYS.drawerWidth, String(Math.round(nextWidth)));
+      dbSetSetting(DRAWER_WIDTH_SETTING, Math.round(nextWidth)).catch(() => {});
     };
     const stop = () => {
       document.body.classList.remove("is-resizing-drawer");
@@ -1538,10 +1646,10 @@ function ToolboxDrawer({ gameId, game, siteContent, toolboxes, links, actions, u
             </div>
             <button className="drawer-close-button" onClick={() => actions.setDrawerGameId("")} aria-label="Fermer" title="Fermer"><Icon name="close" /></button>
           </header>
-          {toolbox ? <ToolboxView siteContent={siteContent} toolbox={toolbox} toolboxGame={game} embedded actions={actions} updateToolbox={updateToolbox} updateModuleData={updateModuleData} addScreenshotFiles={addScreenshotFiles} /> : (
+          {toolbox ? <ToolboxView siteContent={siteContent} toolbox={toolbox} toolboxGame={game} embedded actions={actions} storageUsage={storageUsage} getModuleData={getModuleData} updateToolbox={updateToolbox} updateModuleData={updateModuleData} addScreenshotFiles={addScreenshotFiles} /> : (
             <div className="empty"><p>Aucune toolbox associée à cette page jeu.</p><button className="primary" onClick={() => actions.setCreateModal({ gameId })}>Créer et associer</button></div>
           )}
-          <StorageQuota />
+          <StorageQuota usage={storageUsage} />
         </div>
       </section>
     </aside>
@@ -1595,9 +1703,9 @@ function ConfirmModal({ title, message, confirmLabel = "Confirmer", cancelLabel
   );
 }
 
-function CreateToolboxModal({ gameId, onClose }) {
+function CreateToolboxModal({ gameId, initialName = "", onClose }) {
   useModalScrollLock();
-  const [name, setName] = useState("");
+  const [name, setName] = useState(initialName);
   return (
     <div className="confirm-modal-root">
       <div className="confirm-backdrop" onClick={() => onClose("")} />
@@ -1770,14 +1878,16 @@ function ScreenshotViewer({ shot, onClose }) {
   );
 }
 
-function StorageQuota() {
-  const usage = getAppStorageUsage();
-  const percent = Math.round(usage.ratio * 100);
-  const state = usage.ratio >= 1 ? "danger" : usage.ratio >= APP_STORAGE_WARNING_RATIO ? "warning" : "ok";
+function StorageQuota({ usage }) {
+  const safeUsage = usage || { used: 0, limit: 0, ratio: 0 };
+  const softRatio = Math.min(1, safeUsage.used / APP_STORAGE_SOFT_LIMIT_BYTES);
+  const percent = Math.round(softRatio * 100);
+  const state = safeUsage.used >= APP_STORAGE_SOFT_LIMIT_BYTES ? "danger" : softRatio >= APP_STORAGE_WARNING_RATIO ? "warning" : "ok";
+  const browserQuota = safeUsage.limit ? `Quota navigateur estimé : ${formatBytes(safeUsage.limit)}` : "Quota navigateur estimé indisponible";
   return (
-    <section className={`storage-quota storage-quota-${state}`} aria-label="Quota de stockage local">
-      <div><span>Stockage local</span><strong>{formatBytes(usage.used)} / {formatBytes(usage.limit)}</strong></div>
-      <div className="storage-quota-track" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow={percent} aria-label="Stockage local utilisé"><span style={{ width: `${percent}%` }} /></div>
+    <section className={`storage-quota storage-quota-${state}`} aria-label="Budget recommandé de stockage local" title={`${browserQuota}. Le budget affiché est une limite de confort pour préserver les performances.`}>
+      <div><span>Stockage local recommandé</span><strong>{formatBytes(safeUsage.used)} / {formatBytes(APP_STORAGE_SOFT_LIMIT_BYTES)}</strong></div>
+      <div className="storage-quota-track" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow={percent} aria-label="Budget recommandé utilisé"><span style={{ width: `${percent}%` }} /></div>
     </section>
   );
 }

website/src/styles/_home.scss

@@ -186,47 +186,28 @@ span {
   filter: drop-shadow(0 22px 36px rgba(0, 0, 0, 0.34));
 }
 
-.origin-section {
+.nebula-panel {
   position: relative;
+  overflow: hidden;
+  border: 1px solid transparent;
+  border-radius: var(--radius-lg);
+  background: rgba(16, 20, 38, 0.42);
+  box-shadow: var(--shadow-sm);
+
+  @include mixins.gold-panel-frame;
+}
+
+.nebula-panel > * {
+  position: relative;
+  z-index: 1;
+}
+
+.origin-section {
   display: grid;
   grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.65fr);
   gap: var(--space-6);
   margin-top: var(--space-6);
   padding: var(--space-6);
-  border: 1px solid transparent;
-  border-radius: var(--radius-lg);
-  background: rgba(16, 20, 38, 0.42);
-  box-shadow: var(--shadow-sm);
-}
-
-.origin-section::before {
-  content: "";
-  position: absolute;
-  inset: -1px;
-  padding: 1px;
-  border-radius: inherit;
-  background: rgba(165, 180, 252, 0.14);
-  @include mixins.border-mask;
-  pointer-events: none;
-}
-
-.origin-section::after {
-  content: "";
-  position: absolute;
-  inset: -1px;
-  padding: 1px;
-  border-radius: inherit;
-  background:
-    radial-gradient(circle at calc(100% - var(--radius-lg)) calc(100% - var(--radius-lg)), rgba(246, 196, 83, 0.9) 0 18px, transparent 27px),
-    linear-gradient(90deg, transparent 0 30%, rgba(246, 196, 83, 0.12) 42%, rgba(246, 196, 83, 0.72) 72%, rgba(246, 196, 83, 0.9) 100%),
-    linear-gradient(180deg, transparent 0 30%, rgba(246, 196, 83, 0.12) 42%, rgba(246, 196, 83, 0.72) 72%, rgba(246, 196, 83, 0.9) 100%);
-  @include mixins.border-mask;
-  pointer-events: none;
-}
-
-.origin-section > * {
-  position: relative;
-  z-index: 1;
 }
 
 .origin-copy {
@@ -280,6 +261,181 @@ span {
   text-align: right;
 }
 
+.about-page {
+  display: grid;
+  gap: var(--space-6);
+}
+
+.about-story-section {
+  display: grid;
+  grid-template-columns: minmax(210px, 260px) minmax(0, 1fr);
+  gap: var(--space-6);
+  align-items: start;
+  padding: var(--space-6);
+}
+
+.about-section-heading {
+  position: sticky;
+  top: var(--space-5);
+}
+
+.about-section-heading h2 {
+  margin-bottom: 0;
+}
+
+.about-story-list {
+  display: grid;
+  gap: 0;
+}
+
+.about-story-item {
+  display: grid;
+  grid-template-columns: 42px minmax(0, 1fr);
+  gap: var(--space-4);
+  padding: var(--space-4) 0;
+  border-bottom: 1px solid rgba(165, 180, 252, 0.1);
+}
+
+.about-story-item:first-child {
+  padding-top: 0;
+}
+
+.about-story-item:last-child {
+  border-bottom: 0;
+}
+
+.about-story-item > span {
+  color: var(--color-accent-gold);
+  font-size: var(--font-size-xs);
+  font-weight: 900;
+  letter-spacing: 0.08em;
+  line-height: 1.8;
+}
+
+.about-story-item h3 {
+  margin: 0 0 6px;
+  color: var(--color-text-primary);
+  font-size: var(--font-size-lg);
+}
+
+.about-story-item > div > p {
+  max-width: 78ch;
+  margin: 0;
+  color: var(--color-text-secondary);
+  line-height: 1.62;
+}
+
+.about-tools-section {
+  display: grid;
+  gap: var(--space-4);
+  padding: var(--space-6);
+}
+
+.about-tools-list {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 0 var(--space-6);
+}
+
+.about-tool-item {
+  display: grid;
+  grid-template-columns: 38px minmax(0, 1fr);
+  gap: 12px;
+  align-items: start;
+  padding: 14px 0;
+  border-bottom: 1px solid rgba(165, 180, 252, 0.1);
+}
+
+.about-tool-item:nth-last-child(-n + 2) {
+  border-bottom: 0;
+}
+
+.about-tool-item .module-icon {
+  width: 34px;
+  height: 34px;
+  flex: 0 0 34px;
+  border-radius: var(--radius-md);
+}
+
+.about-tool-item .module-icon-svg {
+  width: 18px;
+  height: 18px;
+}
+
+.about-tool-item h3 {
+  margin: 0 0 4px;
+  color: var(--color-text-primary);
+  font-size: var(--font-size-base);
+}
+
+.about-tool-item p {
+  margin: 0;
+  font-size: var(--font-size-sm);
+  line-height: 1.5;
+}
+
+.about-storage-reminders {
+  display: grid;
+  gap: 12px;
+  margin-top: var(--space-4);
+  padding-left: 44px;
+}
+
+.about-storage-reminders .eyebrow {
+  margin: 0;
+  color: var(--color-accent-gold);
+}
+
+.about-reminders-list {
+  display: grid;
+  gap: 0;
+  margin: 0;
+  padding: 2px 0 2px var(--space-5);
+  list-style: none;
+  border-left: 1px solid rgba(246, 196, 83, 0.22);
+}
+
+.about-reminder-item {
+  display: grid;
+  grid-template-columns: 38px minmax(0, 1fr);
+  gap: 12px;
+  align-items: start;
+  padding: 12px 0;
+  border-bottom: 1px solid rgba(165, 180, 252, 0.1);
+}
+
+.about-reminder-item:first-child {
+  padding-top: 0;
+}
+
+.about-reminder-item:last-child {
+  padding-bottom: 0;
+  border-bottom: 0;
+}
+
+.about-reminder-item .module-icon {
+  width: 34px;
+  height: 34px;
+  flex: 0 0 34px;
+  border: 1px solid rgba(246, 196, 83, 0.26);
+  border-radius: var(--radius-md);
+  background: rgba(246, 196, 83, 0.1);
+}
+
+.about-reminder-item h4 {
+  margin: 0 0 6px;
+  color: var(--color-text-primary);
+  font-size: var(--font-size-base);
+}
+
+.about-reminder-item p {
+  max-width: none;
+  margin: 0;
+  color: var(--color-text-secondary);
+  font-size: var(--font-size-sm);
+  line-height: 1.48;
+}
+
 .home-stats {
   display: grid;
   grid-template-columns: repeat(2, minmax(0, 1fr));

website/src/styles/_mixins.scss

@@ -20,3 +20,32 @@
     border-box;
   -webkit-mask-composite: xor;
 }
+
+@mixin gold-panel-frame($transition: false) {
+  &::before,
+  &::after {
+    content: "";
+    position: absolute;
+    inset: 0;
+    padding: 1px;
+    border-radius: inherit;
+    pointer-events: none;
+
+    @include border-mask;
+
+    @if $transition {
+      transition: background var(--duration-fast) var(--ease-standard);
+    }
+  }
+
+  &::before {
+    background: rgba(165, 180, 252, 0.14);
+  }
+
+  &::after {
+    background:
+      radial-gradient(circle at calc(100% - var(--radius-lg)) calc(100% - var(--radius-lg)), rgba(246, 196, 83, 0.52) 0 18px, transparent 27px),
+      linear-gradient(90deg, transparent 0 30%, rgba(246, 196, 83, 0.08) 42%, rgba(246, 196, 83, 0.38) 72%, rgba(246, 196, 83, 0.52) 100%),
+      linear-gradient(180deg, transparent 0 30%, rgba(246, 196, 83, 0.08) 42%, rgba(246, 196, 83, 0.38) 72%, rgba(246, 196, 83, 0.52) 100%);
+  }
+}

website/src/styles/_responsive.scss

@@ -19,14 +19,24 @@
 
   .brand span:last-child,
   .nav-item strong,
+  .sidebar-about-link strong,
   .sidebar-note {
     display: none;
   }
 
   .brand,
-  .nav-item {
+  .nav-item,
+  .sidebar-about-link {
     justify-content: center;
   }
+
+  .about-story-section {
+    grid-template-columns: 1fr;
+  }
+
+  .about-section-heading {
+    position: static;
+  }
 }
 
 @media (max-width: 760px) {
@@ -63,11 +73,25 @@
   .game-hero,
   .page-hero,
   .origin-section,
+  .about-story-section,
+  .about-tools-list,
   .section-grid,
   .info-grid {
     grid-template-columns: 1fr;
   }
 
+  .about-tool-item:nth-last-child(-n + 2) {
+    border-bottom: 1px solid rgba(165, 180, 252, 0.1);
+  }
+
+  .about-tool-item:last-child {
+    border-bottom: 0;
+  }
+
+  .about-storage-reminders {
+    padding-left: 0;
+  }
+
   .hero,
   .game-hero,
   .page-hero {

website/src/styles/_shell.scss

@@ -143,10 +143,60 @@
   color: var(--color-text-primary);
 }
 
+.sidebar-about-link {
+  display: flex;
+  min-height: 34px;
+  align-items: center;
+  gap: 10px;
+  margin-top: auto;
+  margin-bottom: calc(var(--space-3) * -1);
+  padding: 7px 12px;
+  border: 0;
+  border-radius: var(--radius-md);
+  color: var(--color-text-muted);
+  font-size: var(--font-size-xs);
+  font-weight: 700;
+  transition: var(--duration-normal) var(--ease-standard);
+}
+
+.sidebar-about-link strong {
+  color: inherit;
+  font-size: var(--font-size-xs);
+  font-weight: 700;
+}
+
+.sidebar-about-icon {
+  display: inline-grid;
+  width: 18px;
+  height: 18px;
+  flex: 0 0 auto;
+  place-items: center;
+  color: var(--color-accent-gold);
+  font-size: 12px;
+  font-weight: 900;
+  line-height: 1;
+  transition:
+    color var(--duration-fast) var(--ease-standard),
+    filter var(--duration-fast) var(--ease-standard);
+}
+
+.sidebar-about-link:hover {
+  background: var(--color-bg-hover);
+  color: var(--color-text-secondary);
+}
+
+.sidebar-about-link:hover .sidebar-about-icon {
+  color: #ffd66b;
+  filter: drop-shadow(0 0 6px rgba(246, 196, 83, 0.24));
+}
+
+.sidebar-about-link.active {
+  color: var(--color-text-primary);
+}
+
 .sidebar-note {
   position: relative;
   isolation: isolate;
-  margin-top: auto;
   padding: var(--space-4);
   overflow: hidden;
   border: 1px solid transparent;

website/src/styles/_toolboxes.scss

@@ -320,33 +320,8 @@
   border-color: transparent;
   background: rgba(16, 20, 38, 0.42);
   box-shadow: var(--shadow-sm);
-}
 
-.module::before {
-  content: "";
-  position: absolute;
-  inset: 0;
-  padding: 1px;
-  border-radius: inherit;
-  background: rgba(165, 180, 252, 0.14);
-  @include mixins.border-mask;
-  pointer-events: none;
-  transition: background var(--duration-fast) var(--ease-standard);
-}
-
-.module::after {
-  content: "";
-  position: absolute;
-  inset: 0;
-  padding: 1px;
-  border-radius: inherit;
-  background:
-    radial-gradient(circle at calc(100% - var(--radius-lg)) calc(100% - var(--radius-lg)), rgba(246, 196, 83, 0.52) 0 18px, transparent 27px),
-    linear-gradient(90deg, transparent 0 30%, rgba(246, 196, 83, 0.08) 42%, rgba(246, 196, 83, 0.38) 72%, rgba(246, 196, 83, 0.52) 100%),
-    linear-gradient(180deg, transparent 0 30%, rgba(246, 196, 83, 0.08) 42%, rgba(246, 196, 83, 0.38) 72%, rgba(246, 196, 83, 0.52) 100%);
-  @include mixins.border-mask;
-  pointer-events: none;
-  transition: background var(--duration-fast) var(--ease-standard);
+  @include mixins.gold-panel-frame(true);
 }
 
 .module > * {
@@ -554,6 +529,16 @@
   -webkit-mask-image: url("/static/icons/link.svg");
 }
 
+.module-icon-toolbox {
+  mask-image: url("/static/icons/toolbox.svg");
+  -webkit-mask-image: url("/static/icons/toolbox.svg");
+}
+
+.module-icon-export {
+  mask-image: url("/static/icons/export.svg");
+  -webkit-mask-image: url("/static/icons/export.svg");
+}
+
 .module-icon-abacus {
   mask-image: url("/static/icons/abacus.svg");
   -webkit-mask-image: url("/static/icons/abacus.svg");

website/src/utils/indexedDbStorage.js

@@ -0,0 +1,100 @@
+const DB_NAME = "sokkog";
+const DB_VERSION = 1;
+const KV_STORE = "kv";
+const MODULE_STORE = "modules";
+
+let dbPromise;
+
+function openDatabase() {
+  if (dbPromise) return dbPromise;
+  dbPromise = new Promise((resolve, reject) => {
+    const request = indexedDB.open(DB_NAME, DB_VERSION);
+
+    request.onupgradeneeded = () => {
+      const db = request.result;
+      if (!db.objectStoreNames.contains(KV_STORE)) db.createObjectStore(KV_STORE);
+      if (!db.objectStoreNames.contains(MODULE_STORE)) db.createObjectStore(MODULE_STORE, { keyPath: "key" });
+    };
+
+    request.onsuccess = () => resolve(request.result);
+    request.onerror = () => reject(request.error);
+  });
+  return dbPromise;
+}
+
+function requestToPromise(request) {
+  return new Promise((resolve, reject) => {
+    request.onsuccess = () => resolve(request.result);
+    request.onerror = () => reject(request.error);
+  });
+}
+
+async function storeRequest(storeName, mode, callback) {
+  const db = await openDatabase();
+  const transaction = db.transaction(storeName, mode);
+  const store = transaction.objectStore(storeName);
+  return requestToPromise(callback(store));
+}
+
+export async function getValue(key, fallback) {
+  const value = await storeRequest(KV_STORE, "readonly", (store) => store.get(key));
+  return value == null ? fallback : value;
+}
+
+export async function setValue(key, value) {
+  await storeRequest(KV_STORE, "readwrite", (store) => store.put(value, key));
+}
+
+export async function getToolboxes() {
+  return getValue("toolboxes", []);
+}
+
+export async function setToolboxes(toolboxes) {
+  await setValue("toolboxes", toolboxes);
+}
+
+export async function getLinks() {
+  return getValue("links", {});
+}
+
+export async function setLinks(links) {
+  await setValue("links", links);
+}
+
+export async function getSetting(key, fallback) {
+  return getValue(`setting:${key}`, fallback);
+}
+
+export async function setSetting(key, value) {
+  await setValue(`setting:${key}`, value);
+}
+
+export async function getAllModuleData() {
+  return storeRequest(MODULE_STORE, "readonly", (store) => store.getAll());
+}
+
+export async function setModuleData(key, data) {
+  await storeRequest(MODULE_STORE, "readwrite", (store) => store.put({ key, data }));
+}
+
+export async function removeModuleData(key) {
+  await storeRequest(MODULE_STORE, "readwrite", (store) => store.delete(key));
+}
+
+export async function removeModuleDataKeys(keys) {
+  if (!keys.length) return;
+  const db = await openDatabase();
+  await new Promise((resolve, reject) => {
+    const transaction = db.transaction(MODULE_STORE, "readwrite");
+    const store = transaction.objectStore(MODULE_STORE);
+    keys.forEach((key) => store.delete(key));
+    transaction.oncomplete = () => resolve();
+    transaction.onerror = () => reject(transaction.error);
+    transaction.onabort = () => reject(transaction.error);
+  });
+}
+
+export async function getStorageEstimate() {
+  if (!navigator.storage?.estimate) return { usage: 0, quota: 0 };
+  return navigator.storage.estimate();
+}