feat: add proactive cron tasks and systemd timers\n\n- 10 proactive tasks: ingest with self-healing & link suggestions, daily summary, health check, archive stale, tag normalizer, predictive links, auto assign review, import context buffer\n- systemd timers for scheduling (02:00/14:00 slots, 30min intervals, weekly)\n- all tasks tested and working\n\nRefs: #1

cron_tasks/daily_summary.py

@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+"""
+Tägliche Zusammenfassung der Second Brain Aktivitäten.
+Erstellt ein Engramm mit Highlights des Vortags.
+"""
+
+from __future__ import annotations
+
+import json
+import sqlite3
+import sys
+from datetime import datetime, timezone, timedelta
+from pathlib import Path
+
+BRAIN_DIR = Path("/root/.openclaw/workspace/second-brain")
+DB_PATH = BRAIN_DIR / "data" / "brain.sqlite"
+
+def run():
+    now = datetime.now(timezone.utc)
+    yesterday = now - timedelta(days=1)
+    date_str = yesterday.strftime("%Y-%m-%d")
+
+    conn = sqlite3.connect(str(DB_PATH))
+    conn.row_factory = sqlite3.Row
+    c = conn.cursor()
+
+    # Engramme von gestern (created_at innerhalb des Tages)
+    c.execute("""
+        SELECT id, content, metadata_json, created_at
+        FROM engrams
+        WHERE created_at >= ? AND created_at < ?
+    """, (yesterday.isoformat(), now.isoformat()))
+    rows = c.fetchall()
+
+    total_yesterday = len(rows)
+    sources = {}
+    tags = {}
+    for r in rows:
+        meta = json.loads(r["metadata_json"] or "{}")
+        src = meta.get("source", "unknown")
+        sources[src] = sources.get(src, 0) + 1
+        for t in meta.get("tags", []):
+            tags[t] = tags.get(t, 0) + 1
+
+    conn.close()
+
+    # Zusammenfassung bauen
+    top_sources = sorted(sources.items(), key=lambda x: x[1], reverse=True)[:5]
+    top_tags = sorted(tags.items(), key=lambda x: x[1], reverse=True)[:5]
+
+    content = f"""Daily Summary – {date_str}\n\n"""
+    content += f"Neue Engramme: {total_yesterday}\n\n"
+    if top_sources:
+        content += "Top Quellen:\n" + "\n".join(f"- {src}: {cnt}" for src, cnt in top_sources) + "\n\n"
+    if top_tags:
+        content += "Top Tags:\n" + "\n".join(f"- {tag}: {cnt}" for tag, cnt in top_tags) + "\n\n"
+    content += f"Generiert am {now.isoformat()}"
+
+    # Engramm speichern
+    sys.path.insert(0, str(BRAIN_DIR))
+    from src.store import EngramStore
+    from src.engram import Engram, Grounding
+
+    store = EngramStore(str(DB_PATH))
+    eg = Engram.create(
+        content=content,
+        source="system",
+        tags=["daily-summary", "auto"],
+        grounding=Grounding.ASSUMPTION,
+    )
+    eg.metadata.update({
+        "title": f"📊 Summary {date_str}",
+        "daily_summary": True,
+        "date": date_str,
+        "new_engrams_count": total_yesterday,
+        "top_sources": dict(top_sources),
+        "top_tags": dict(top_tags),
+    })
+    store.save(eg)
+
+    print(json.dumps({
+        "success": True,
+        "date": date_str,
+        "engram_id": str(eg.id),
+        "new_engrams": total_yesterday,
+    }, indent=2, ensure_ascii=False))
+
+if __name__ == "__main__":
+    run()