test: Add grants explorer test suite and auth security fix - #500

Draft

minimalsm wants to merge 3 commits into

feature/private-grants-explorerfrom

feature/grants-explorer-tests

Commits on Jan 23, 2026

test: Add test suite for grants explorer
minimalsm
committed
4f31f10
security: Add signed auth tokens for internal grants access
minimalsm
committed
1e18455
test: Add public grants data exposure prevention tests
minimalsm
committed
c7bbe78