Community-Paket: Playtester-Programm, Starboard, Screenshot-Galerie

- Playtester: /playtester-setup postet Bewerbungs-Embed mit 🧪-Button;
  Toggle vergibt Rolle + DB-Eintrag; Liste + Rollen-Auswahl auf der Setup-Seite
- Starboard: ab konfigurierbarem ⭐-Schwellwert Repost als Embed in den
  Best-of-Kanal (Dedupe, kein Selbst-Boarding); neue Intents/Partials für Reaktionen
- Galerie: Bilder aus dem Screenshot-Kanal lokal archiviert (live + /galerie-backfill,
  Delete-Sync, Bot reagiert mit ⭐) → öffentliche /galerie-Seite mit Hover-Grid
- Setup-Seite: Sektion // Community (Rolle, Starboard-Kanal + Schwellwert, Screenshot-Kanal)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/db.js

@@ -114,6 +114,70 @@ export function takeBugReport(repo, issueNumber) {
     return row ?? null;
 }
 
+// Community: Playtester, Starboard, Screenshot-Galerie
+db.exec(`
+    CREATE TABLE IF NOT EXISTS playtesters (
+        user_id    TEXT PRIMARY KEY,
+        username   TEXT,
+        applied_at TEXT NOT NULL DEFAULT (datetime('now'))
+    );
+    CREATE TABLE IF NOT EXISTS starboard (
+        message_id       TEXT PRIMARY KEY,
+        board_message_id TEXT,
+        starred_at       TEXT NOT NULL DEFAULT (datetime('now'))
+    );
+    CREATE TABLE IF NOT EXISTS gallery (
+        message_id  TEXT PRIMARY KEY,
+        author_name TEXT,
+        images      TEXT NOT NULL,
+        posted_at   TEXT NOT NULL
+    );
+    CREATE INDEX IF NOT EXISTS idx_gallery_posted ON gallery (posted_at DESC);
+`);
+
+const insertPlaytester = db.prepare(
+    'INSERT OR IGNORE INTO playtesters (user_id, username) VALUES (?, ?)'
+);
+const deletePlaytester = db.prepare('DELETE FROM playtesters WHERE user_id = ?');
+const listPlaytestersStmt = db.prepare(
+    'SELECT user_id, username, applied_at FROM playtesters ORDER BY applied_at'
+);
+export const addPlaytester = (userId, username) => insertPlaytester.run(userId, username).changes > 0;
+export const removePlaytester = (userId) => deletePlaytester.run(userId).changes > 0;
+export const listPlaytesters = () => listPlaytestersStmt.all();
+
+const hasStarboardStmt = db.prepare('SELECT 1 FROM starboard WHERE message_id = ?');
+const insertStarboard = db.prepare(
+    'INSERT OR IGNORE INTO starboard (message_id, board_message_id) VALUES (?, ?)'
+);
+export const hasStarboard = (id) => Boolean(hasStarboardStmt.get(id));
+export const saveStarboard = (id, boardId) => insertStarboard.run(id, boardId);
+
+const insertGallery = db.prepare(`
+    INSERT OR IGNORE INTO gallery (message_id, author_name, images, posted_at)
+    VALUES (@message_id, @author_name, @images, @posted_at)
+`);
+const hasGalleryStmt = db.prepare('SELECT 1 FROM gallery WHERE message_id = ?');
+const getGalleryImagesStmt = db.prepare('SELECT images FROM gallery WHERE message_id = ?');
+const deleteGalleryStmt = db.prepare('DELETE FROM gallery WHERE message_id = ?');
+const listGalleryStmt = db.prepare(`
+    SELECT message_id, author_name, images, posted_at
+    FROM gallery ORDER BY posted_at DESC LIMIT ? OFFSET ?
+`);
+const countGalleryStmt = db.prepare('SELECT count(*) AS n FROM gallery');
+export const saveGalleryItem = (item) => insertGallery.run(item).changes > 0;
+export const hasGalleryItem = (id) => Boolean(hasGalleryStmt.get(id));
+export function deleteGalleryItem(id) {
+    const row = getGalleryImagesStmt.get(id);
+    if (!row) return { deleted: false, images: [] };
+    deleteGalleryStmt.run(id);
+    return { deleted: true, images: JSON.parse(row.images || '[]') };
+}
+export const listGallery = (limit, offset) => ({
+    items: listGalleryStmt.all(limit, offset),
+    total: countGalleryStmt.get().n,
+});
+
 // API-Keys für externe Skripte (/api/v1/*) — nur der SHA-256-Hash wird gespeichert
 db.exec(`
     CREATE TABLE IF NOT EXISTS api_keys (