Untrack data/backups/ (real fundraising data; sovereignty)

These fundraising-state backup JSONs contain real investor data and were tracked
from the initial commit. Untracked (local files preserved) and gitignored, same
as data/crm.db. Keeps real data out of future commits and the package gitHash.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.gitignore

@@ -32,3 +32,6 @@ node_modules/
 **/crm.db-wal
 **/crm.db-shm
 **/fundraising_state_auto_*.json
+
+# Local fundraising-state backups (real data) — never commit
+data/backups/