Version 3.3.4

• Fixed ss.CampaignDelivery failing to initialize on date-based timelines: init_pre() now compares against the float sim.t.yearvec instead of the date-typed sim.timevec, which caused sc.findnearest to crash because subtracting ss.date objects produces datedur.
• Fixed ss.CampaignDelivery missing a coverage_dist placeholder in __init__, which caused AttributeError on the first delivery. This affected ss.campaign_screening, ss.campaign_triage, and ss.campaign_vx.
• Fixed ss.RoutineDelivery off-by-one when dt = 1: adj_factor is now 0 (was 1) for dt >= 1, so the intervention no longer runs for one extra year past end_year. The previous behavior also caused an IndexError when a per-year prob array was supplied.
• Aligned RoutineDelivery.yearvec with self.timepoints by slicing sim.t.yearvec directly, ensuring prob from sc.smoothinterp always matches the timepoint length.
• Regression: ss.routine_screening, ss.routine_triage, and ss.routine_vx with dt = 1 will now stop one year earlier than before (at end_year rather than end_year + 1).
• Added test coverage for RoutineDelivery and CampaignDelivery in tests/test_interventions.py.
• GitHub info: PR 1325