Öffentliche Roadmap-Seite aus Gitea-Milestones

- GET /api/roadmap (public): Milestones des Setting roadmap_repo, 5-min-Cache,
  letzter guter Stand als Fallback bei Gitea-Ausfall
- /roadmap: Gruppen In Arbeit / Geplant / Fertig, Fortschrittsbalken im Brand-Look,
  Ziel-Monat, Markdown-Beschreibungen; Nav-Link öffentlich
- Setup-Seite: Roadmap-Repo konfigurierbar

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

src/web/api.js

@@ -6,7 +6,8 @@ import {
 } from '../db.js';
 import { config } from '../config.js';
 import { removeDevlog } from '../bot/devlog-archive.js';
-import { commitChannelId, devlogChannelId, releaseChannelId, devlogPingRoleId, publicUrl } from '../runtime-settings.js';
+import { commitChannelId, devlogChannelId, releaseChannelId, devlogPingRoleId, publicUrl, roadmapRepo } from '../runtime-settings.js';
+import { getMilestones } from '../gitea-api.js';
 import { getSessionUser, isAdmin } from './auth.js';
 
 const PAGE_SIZE = 20;
@@ -52,6 +53,36 @@ export function registerApiRoutes(app, client) {
         return { items, total, page, pageSize: PAGE_SIZE };
     });
 
+    // Roadmap — öffentlich, aus Gitea-Milestones (5-Minuten-Cache gegen API-Hammering)
+    let roadmapCache = { at: 0, repo: null, data: null };
+    app.get('/api/roadmap', async (request, reply) => {
+        const repo = roadmapRepo();
+        if (roadmapCache.data && roadmapCache.repo === repo && Date.now() - roadmapCache.at < 5 * 60_000) {
+            return roadmapCache.data;
+        }
+        try {
+            const milestones = await getMilestones(repo);
+            const data = {
+                repo,
+                milestones: milestones.map((m) => ({
+                    title: m.title,
+                    description: m.description ?? '',
+                    state: m.state, // 'open' | 'closed'
+                    open: m.open_issues ?? 0,
+                    closed: m.closed_issues ?? 0,
+                    due_on: m.due_on ?? null,
+                })),
+            };
+            roadmapCache = { at: Date.now(), repo, data };
+            return data;
+        } catch (error) {
+            request.log.error({ err: error }, 'Roadmap-Abruf fehlgeschlagen');
+            // Letzten guten Stand weiterreichen, falls vorhanden
+            if (roadmapCache.data && roadmapCache.repo === repo) return roadmapCache.data;
+            return reply.code(502).send({ error: 'Roadmap nicht abrufbar' });
+        }
+    });
+
     // RSS-Feed der Devlogs — öffentlich abonnierbar
     app.get('/feed.xml', async (request, reply) => {
         const { items } = listDevlogs(20, 0);
@@ -144,6 +175,7 @@ ${rssItems}
             weekly_recap_enabled: getSetting('weekly_recap_enabled') !== '0',
             devlog_threads_enabled: getSetting('devlog_threads_enabled') !== '0',
             bug_report_repo: getSetting('bug_report_repo') ?? 'D4rkst3r/EcoGame',
+            roadmap_repo: getSetting('roadmap_repo') ?? 'D4rkst3r/EcoGame',
             watchdog_urls: getSetting('watchdog_urls') ?? '',
             public_url: publicUrl(),
             gitea_url: getSetting('gitea_url') ?? config.giteaUrl,
@@ -215,7 +247,7 @@ ${rssItems}
         if (body.backup_enabled !== undefined) {
             setSetting('backup_enabled', body.backup_enabled ? '1' : '0');
         }
-        for (const key of ['commit_branch_filter', 'ignored_repos', 'bug_report_repo', 'watchdog_urls']) {
+        for (const key of ['commit_branch_filter', 'ignored_repos', 'bug_report_repo', 'watchdog_urls', 'roadmap_repo']) {
             if (body[key] !== undefined) {
                 setSetting(key, String(body[key]).trim());
             }