data: add reference SQLite database (database/vn_law.sqlite)

Reference catalogue used to rebuild and cross-reference the corrected 2026 split:
613 Laws/Codes from vbpl.vn with in-force status, law_links with direct links to
6 official/reference sources, plus reconciliation and coverage tables.

.gitattributes

@@ -57,3 +57,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 # Video files - compressed
 *.mp4 filter=lfs diff=lfs merge=lfs -text
 *.webm filter=lfs diff=lfs merge=lfs -text
+*.sqlite filter=lfs diff=lfs merge=lfs -text

README.md

@@ -130,6 +130,10 @@ Each corrected entry is cross-referenced to direct links from official and refer
 | `url_quochoi` | vietlaw.quochoi.vn (Quốc hội) | OFFICIAL — full text |
 | `url_thuvienphapluat`, `url_luatvietnam` | thuvienphapluat.vn, luatvietnam.vn | reference (private) |
 
+The full reference catalogue (laws, source links, in-force status, reconciliation) is also
+provided as a SQLite database at `database/vn_law.sqlite` (tables: `laws`, `law_links`,
+`legal_sources`, `vlc_2026_reconcile`, `missing_in_vlc`).
+
 ## Usage
 
 ```python

database/vn_law.sqlite

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3c58bfbd0dcc892f4c35815f55bf30008092fc9e9d7d3404d1074d964706989a
+size 1179648