fix: replace fabricated inline data on admin reports page with real data wiring

[Rufai-Ahmed]

What

Removes the fabricated inline data on the admin reports page that sits outside the six named MOCK_* constants (the fake [1..5].map user-log rows, the hardcoded 24,592 total-users card, the hardcoded financial YTD stat cards) and wires those panels to typed data through the existing API layer, with loading and empty states matching the other admin pages.

The activity panel uses /users/me/activity since that is the only activity endpoint available, so it is scoped to the signed-in admin and labeled accordingly.

Testing

tsc and eslint clean on the changed file; the remaining tsc errors in the repo are pre-existing in unrelated files (83 on this branch vs 94 on main).

Closes #765

[orbitlumen-hue]

resolve conflicts

[Rufai-Ahmed]

Done, rebased on main and resolved the conflicts. Kept the Print Report wiring from #778; the scheduled tab keeps the empty state since the fabricated rows are what this PR removes. One thing to flag: I applied for #765 through the wave but I have not been assigned yet.