Initial SQL-only 1C adapter baseline

scripts/build_1c_rag_index.py

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+from __future__ import annotations
+
+import argparse
+from pathlib import Path
+
+from common import build_lexical_index, read_jsonl, write_json
+
+ROOT = Path(__file__).resolve().parents[1]
+DEFAULT_CORPUS = ROOT / "plugins" / "1c" / "datasets" / "prepared" / "rag_corpus.jsonl"
+DEFAULT_INDEX = ROOT / "plugins" / "1c" / "datasets" / "prepared" / "rag_index.json"
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser(description="Build a simple lexical RAG index for the 1C corpus.")
+    parser.add_argument("--corpus", type=Path, default=DEFAULT_CORPUS)
+    parser.add_argument("--output", type=Path, default=DEFAULT_INDEX)
+    args = parser.parse_args()
+
+    records = read_jsonl(args.corpus)
+    index = build_lexical_index(records)
+    write_json(args.output, index)
+    print(f"Wrote index with {index['doc_count']} document chunk(s) to {args.output}")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())