feat(transit): add Guelph and Kingston, register Barrie off

Guelph's feed publishes the internal database key of a route (`2991`)
where the rider sees the number on the bus (`1`), which would have put
"Route 2991" on the label a person reads. So a feed may now carry its own
`routeLabel`, the same way it may carry its own `modeWords`. Guelph's table
is its 33 routes, taken from the City's own published GTFS; an id missing
from it renders unchanged, because a raw id you can compare against the bus
beats a blank. Every other feed is identity and carries no table.

Kingston is catalogued by the City against this exact URL. Its licence PDF
link is pinned to the canonical location rather than the legacy path that
currently redirects there — Durham's entry records what happens when such a
redirect is eventually dropped.

Barrie ships REGISTERED AND OFF. The City offers its licence for acceptance
behind a click-through gate, and nobody on this project has accepted it.
Whether to accept is a person's decision, not an assumption a poller should
make, so the feed is visible, documented, and one line from enabled.

docs/CURRENT-STATE.md

@@ -3659,10 +3659,12 @@ Transit is off by default, and share links use token `j`. The movement panel ord
 places Transit directly after Street Traffic and before Bike Share. Cameras and
 utilities retain their own groups. The layer polls
 registered feeds near the camera every 15 seconds, below a 3,000 km altitude
-gate. Eleven keyless regions are available: Boston, Austin, Minneapolis–St Paul,
+gate. Thirteen keyless regions are available: Boston, Austin, Minneapolis–St Paul,
 Helsinki, the Netherlands, Norway, South East Queensland, Toronto (TTC
-surface vehicles; the subway publishes no positions), and the Golden
-Horseshoe neighbours MiWay, Hamilton HSR and Durham Region Transit. Mode silhouettes
+surface vehicles; the subway publishes no positions), the Golden Horseshoe
+neighbours MiWay, Hamilton HSR and Durham Region Transit, and Guelph and
+Kingston. Barrie is registered but ships off, pending acceptance of its
+click-through licence. Mode silhouettes
 identify buses, trams, subways, trains, ferries and unclassified vehicles.
 
 Retained transit history uses the same outlier quarantine as live observations and