feat(build): sync vendored directories from GitHub on start and build

Adds sync-directories.js script that fetches 5chan-directories.json from bitsocialhq/lists and updates the vendored fallback. Runs before generate:assets in prestart and prebuild to ensure the fallback is fresh for every build. Non-fatal: if fetch fails, existing file is kept.

package.json

@@ -48,8 +48,9 @@
   },
   "scripts": {
     "generate:assets": "node scripts/generate-asset-manifest.js",
-    "prebuild": "yarn generate:assets",
-    "prestart": "yarn generate:assets",
+    "sync:directories": "node scripts/sync-directories.js",
+    "prebuild": "yarn sync:directories && yarn generate:assets",
+    "prestart": "yarn sync:directories && yarn generate:assets",
     "start": "vite",
     "build": "cross-env PUBLIC_URL=./ GENERATE_SOURCEMAP=false vite build",
     "build:preload": "vite build --config electron/vite.preload.config.js",

scripts/sync-directories.js

@@ -0,0 +1,57 @@
+// Best-effort sync of 5chan-directories.json from GitHub
+// Updates the vendored fallback in src/data/ so production builds ship a fresh snapshot.
+// Never fails the build — if the fetch fails (offline, rate-limited, etc.), the existing file is kept.
+
+import { writeFileSync, readFileSync } from 'fs';
+import { join, dirname } from 'path';
+import { fileURLToPath } from 'url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+const GITHUB_URL = 'https://raw.githubusercontent.com/bitsocialhq/lists/master/5chan-directories.json';
+const OUTPUT_PATH = join(__dirname, '..', 'src', 'data', '5chan-directories.json');
+const TIMEOUT_MS = 5000;
+
+const sync = async () => {
+  try {
+    const controller = new AbortController();
+    const timeout = setTimeout(() => controller.abort(), TIMEOUT_MS);
+
+    const response = await fetch(GITHUB_URL, { signal: controller.signal });
+    clearTimeout(timeout);
+
+    if (!response.ok) {
+      throw new Error(`HTTP ${response.status}`);
+    }
+
+    const data = await response.json();
+
+    // Basic sanity check — must have a communities array
+    if (!Array.isArray(data?.communities) || data.communities.length === 0) {
+      throw new Error('Invalid data: missing or empty communities array');
+    }
+
+    const formatted = JSON.stringify(data, null, 2) + '\n';
+
+    // Only write if content actually changed
+    let existing = '';
+    try {
+      existing = readFileSync(OUTPUT_PATH, 'utf8');
+    } catch {
+      // file doesn't exist yet
+    }
+
+    if (formatted === existing) {
+      console.log('✅ Vendored directories already up to date');
+      return;
+    }
+
+    writeFileSync(OUTPUT_PATH, formatted, 'utf8');
+    console.log(`✅ Synced vendored directories (${data.communities.length} communities)`);
+  } catch (e) {
+    console.warn(`⚠️  Could not sync directories from GitHub (keeping existing file): ${e.message}`);
+  }
+};
+
+sync();

src/data/5chan-directories.json

@@ -1,6 +1,6 @@
 {
-  "title": "5chan directories",
-  "description": "Each 5chan directory is assigned to a board (subplebbit) handpicked by the team, until DAO curation is implemented.\n\nhttps://github.com/plebbit/temporary-default-subplebbits",
+  "title": "/all/ - All 5chan Directories",
+  "description": "Each 5chan directory is assigned to a board handpicked by the team, until DAO curation is implemented.\n\nhttps://github.com/bitsocialhq/lists/blob/master/5chan-directories.json",
   "createdAt": 1762179811,
   "updatedAt": 1762179811,
   "communities": [
@@ -13,7 +13,91 @@
       "title": "/biz/ - Business & Finance",
       "address": "business-and-finance.eth",
       "nsfw": false
+    },
+    {
+      "title": "/sci/ - Science & Math",
+      "address": "science-and-math.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/g/ - Technology",
+      "address": "technology-posting.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/vg/ - Video Game Generals",
+      "address": "videogame-generals.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/fit/ - Fitness",
+      "address": "fitness-posting.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/adv/ - Advice",
+      "address": "advice-posting.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/wsg/ - Worksafe GIF",
+      "address": "worksafe-gif.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/diy/ - Do It Yourself",
+      "address": "do-it-yourself.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/out/ - Outdoors",
+      "address": "outdoors-posting.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/ic/ - Artwork/Critique",
+      "address": "artwork-critique.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/mu/ - Music",
+      "address": "music-posting.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/int/ - International",
+      "address": "international-sfw.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/lit/ - Literature",
+      "address": "literature-posting.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/tv/ - Television & Film",
+      "address": "television-and-film.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/vip/ - Very Important Posts",
+      "address": "very-important-posts.eth",
+      "nsfw": false
+    },
+    {
+      "title": "/gif/ - Adult GIF",
+      "address": "adult-gif.eth",
+      "nsfw": true
+    },
+    {
+      "title": "/bant/ - International/Random",
+      "address": "international-nsfw.eth",
+      "nsfw": true
+    },
+    {
+      "title": "/b/ - Random",
+      "address": "random-nsfw.eth",
+      "nsfw": true
     }
   ]
 }
-