NameRequest: display Priority Request Wait Time by Days instead of Hours

[eve-git]

1. merge the code changes in parent ticket https://app.zenhub.com/workspaces/names-team-board-new-655554cbddd49510027dad2e/issues/gh/bcgov/entity/31097
2. In Name Request, retrieving waiting days from the stats API fails when the feature flag value is less than zero. We can just retrieve it (since the API has caching) and use logic to determine whether to display the feature flag value or the API value.
3. Update the API so that priority waiting days are calculated in days instead of hours.

[eve-git]

TEST:

1. LaunchDarkly hardcoded wait time (regular & priority)
   Behavior by FF value:

   0: display FF wait time
   == 0: display the wait time calculated from database/api
   < 0 or -1: display disabled "-"

2. DB/API-calculated wait time:
   Compute the median wait time = (examination time – submitted time) over the last 7 days.
   If no names were examined in the past 7 days → Show “–” (disabled)
   Otherwise → Show the computed median (in days)

NOTE:
FF value semantics have changed in the new code.
Please review before deploying to PROD.

Meaning	PROD (current)	New code (post-change)
Use hardcoded FF days	> 0	> 0
Use API/DB wait time	-1	0
Disabled (show “–”)	0	-1

[gunanagar]

Tested in TEST, NR with priority request, it displayed days instead of hours. Pls refer screenshot below

[gunanagar]

wait days value is disabled (displayed as a dash “–”), the tooltip that appears when hovering over it is also disabled

[gunanagar]

Tested with a configuration of 48 hours, which displayed as 48 hours instead of 2 days.

[gunanagar]

Tested in TEST Environment

1. Flag off -> 1 Day
2. Default API -> -

3. 0 days/hours -> > 0 days