chore: update posimai-guard submodule pointer

両モデル失敗時に done+null のまま放置されていた問題を修正。
summary が空の場合は failed にして再試行ボタンが機能する状態を維持する。

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

posimai-guard

@@ -1 +1 @@
-Subproject commit 0c38e33cc1920bd577c2d84a417a18690f1eda53
+Subproject commit 6ab7939676e2ef9bb9ab07089e99b815023e92af

server.js

@@ -2021,6 +2021,53 @@ ${excerpt}
         }
     });
 
+    // GET /chronicle/activity — GitHub push イベントから期間内のコミット一覧を返す
+    r.get('/chronicle/activity', authMiddleware, async (req, res) => {
+        const token = process.env.CHRONICLE_GITHUB_TOKEN || '';
+        if (!token) return res.status(503).json({ error: 'CHRONICLE_GITHUB_TOKEN not configured' });
+
+        const daysNum = Math.min(Math.max(parseInt(req.query.days) || 7, 1), 30);
+        const since = new Date(Date.now() - daysNum * 86400000);
+
+        try {
+            const ghHeaders = {
+                'Authorization': `Bearer ${token}`,
+                'Accept': 'application/vnd.github+json',
+                'X-GitHub-Api-Version': '2022-11-28',
+                'User-Agent': 'posimai-chronicle/1.0'
+            };
+
+            const eventsResp = await fetch(
+                'https://api.github.com/orgs/posimai/events?per_page=100',
+                { headers: ghHeaders }
+            );
+            if (!eventsResp.ok) throw new Error(`GitHub API ${eventsResp.status}`);
+
+            const events = await eventsResp.json();
+            const commits = [];
+            const repos = new Set();
+
+            for (const ev of events) {
+                if (ev.type !== 'PushEvent') continue;
+                if (new Date(ev.created_at) < since) continue;
+
+                const repoName = ev.repo.name.replace('posimai/', '');
+                repos.add(repoName);
+
+                for (const c of ev.payload?.commits || []) {
+                    const msg = c.message.split('\n')[0];
+                    if (/^Merge\b/i.test(msg)) continue;
+                    commits.push({ repo: repoName, message: msg, date: ev.created_at });
+                }
+            }
+
+            res.json({ commits, repos: [...repos], since: since.toISOString() });
+        } catch (e) {
+            console.error('[chronicle/activity]', e.message);
+            res.status(500).json({ error: e.message });
+        }
+    });
+
     r.post('/journal/upload', authMiddleware, (req, res) => {
         try {
             const { base64 } = req.body || {};
@@ -2677,9 +2724,11 @@ ${excerpt}
                 }
             }
 
+            // summary が取れなかった場合は failed にする（done+nullのまま再試行不能になるのを防ぐ）
+            const finalStatus = summary ? 'done' : 'failed';
             await pool.query(
-                `UPDATE together_shares SET summary=$1, tags=$2, archive_status='done' WHERE id=$3`,
-                [summary, tags, shareId]
+                `UPDATE together_shares SET summary=$1, tags=$2, archive_status=$3 WHERE id=$4`,
+                [summary || null, tags, finalStatus, shareId]
             );
         } catch (e) {
             console.error('[together archive]', shareId, e.message);
@@ -2730,7 +2779,7 @@ ${excerpt}
                     }
                 }
                 if (!rearchiveDone) {
-                    await pool.query(`UPDATE together_shares SET archive_status='done' WHERE id=$1`, [shareId]);
+                    await pool.query(`UPDATE together_shares SET archive_status='failed' WHERE id=$1`, [shareId]);
                 }
             } else {
                 // failed / skipped — フル再アーカイブ