fix(cctv): raise the default catalog cap to 4,500 and enforce it over every pack

The per-pack defaults already summed to 4,054 before WSDOT (4,304 with
it), past the documented 4,000 cap, so a default install was trimming.
The existing sum check in the DriveBC test listed packs by hand and
missed Calgary and DelDOT. Replace it with a check in
cctvCatalogCap.test.mjs that sums every exported DEFAULT_*_MAX_SOURCES,
and drop the Calgary test that pinned the cap at exactly 4,000.

docs/CURRENT-STATE.md

@@ -3422,7 +3422,7 @@ silently demoting every later lookup for the session.
   kill switch `CCTV_FINTRAFFIC_ENABLED=0`) are the fourth pack: one keyless GeoJSON station list
   covering the whole country, where one _preset_ (a station's fixed view) is one camera — 806
   GATHERING stations carry 2,256 in-collection presets, prioritized to 300 against seven anchors
-  on the main road spine. `CCTV_MAX_SOURCES` is a 4,000 catalog-wide ceiling shared round-robin
+  on the main road spine. `CCTV_MAX_SOURCES` is a 4,500 catalog-wide ceiling (4,000 until the WSDOT pack) shared round-robin
   across packs, so a lower global cap thins every region instead of starving the last pack.
   ~1,100 cameras total, all RAW PRIOR poses, stills-first.
 - **CCTV v3 UX — viewshed + calibration gizmo** (built 2026-07-05 and field