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/auto_assign_review.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+"""
+Markiert Engramme mit niedriger Confidence (<0.5) und ohne Bestätigung
+als 'needs_review' in metadata. Kann später manuell Review-Warteschlange abarbeiten.
+"""
+
+from __future__ import annotations
+
+import json
+import sqlite3
+import sys
+from datetime import datetime, timezone
+from pathlib import Path
+
+BRAIN_DIR = Path("/root/.openclaw/workspace/second-brain")
+DB_PATH = BRAIN_DIR / "data" / "brain.sqlite"
+
+def run():
+    conn = sqlite3.connect(str(DB_PATH))
+    conn.row_factory = sqlite3.Row
+    c = conn.cursor()
+
+    # Engramme: confidence < 0.5 UND nicht confirmed (verdict != confirmed_true)
+    c.execute("""
+        SELECT id, metadata_json, correctness_json FROM engrams
+        WHERE json_extract(metadata_json, '$.confidence') < 0.5
+          AND (json_extract(correctness_json, '$.verdict') IS NULL
+               OR json_extract(correctness_json, '$.verdict') != 'confirmed_true')
+    """)
+    rows = c.fetchall()
+
+    marked = 0
+    for r in rows:
+        meta = json.loads(r["metadata_json"] or "{}")
+        tags = meta.get("tags", [])
+        if "needs_review" not in tags:
+            tags.append("needs_review")
+            meta["tags"] = tags
+            c.execute("UPDATE engrams SET metadata_json = ?, modified_at = ? WHERE id = ?",
+                      (json.dumps(meta), datetime.now(timezone.utc).isoformat(), r["id"]))
+            marked += 1
+
+    conn.commit()
+    conn.close()
+
+    print(json.dumps({
+        "success": True,
+        "time": datetime.now(timezone.utc).isoformat(),
+        "marked_for_review": marked,
+    }, indent=2, ensure_ascii=False))
+
+if __name__ == "__main__":
+    run()