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/index_vectors.py

@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+"""
+Index Engrams into Chroma vector store for semantic search.
+"""
+
+from __future__ import annotations
+
+import json
+import sys
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Any, Dict, List
+
+BRAIN_DIR = Path("/root/.openclaw/workspace/second-brain")
+sys.path.insert(0, str(BRAIN_DIR))
+from src.store import EngramStore
+from src.chroma_store import ChromaStore
+
+DB_PATH = BRAIN_DIR / "data" / "brain.sqlite"
+CHROMA_DIR = BRAIN_DIR / "data" / "chroma"
+
+
+def run() -> Dict[str, Any]:
+    store = EngramStore(str(DB_PATH))
+    chroma = ChromaStore(str(CHROMA_DIR))
+
+    out = {
+        "success": True,
+        "time": datetime.now(timezone.utc).isoformat(),
+        "indexed": 0,
+        "skipped": 0,
+        "errors": [],
+    }
+
+    # Get all engram IDs from SQL DB
+    rows = store._conn.execute("SELECT id FROM engrams").fetchall()
+    all_ids = [row[0] for row in rows]
+    # Get existing IDs from Chroma
+    existing = set(chroma.collection.get(include=[])["ids"])
+
+    for eg_id in all_ids:
+        try:
+            if eg_id in existing:
+                out["skipped"] += 1
+                continue
+            eg = store.get(eg_id)
+            if eg is None:
+                out["errors"].append(f"{eg_id}: not found in store")
+                continue
+            chroma.add(eg)
+            out["indexed"] += 1
+        except Exception as e:
+            out["errors"].append(f"{eg_id}: {e}")
+
+    return out
+
+
+if __name__ == "__main__":
+    res = run()
+    print(json.dumps(res, ensure_ascii=False, indent=2))