correct usage of crs in projectTo()??

[achubaty]

projectTo() help file says argument projectTo should be created using sf_crs() but this fails because terra is expecting a character.
Using a character fails because it looks like projectTo() passes this character on to res(), which then fails.

d> coords <- matrix(c(-122.98, -116.1,
+                    -99.2, -106,
+                    -122.98, 59.9,
+                    65.73, 63.58,
+                    54.79, 59.9), ncol = 2)
d> center <- sf::st_multipoint(coords) |>
+   sf::st_centroid() |>
+   as.matrix()
d> studyArea <- SpaDES.tools::randomPolygon(center, area = 1e4) |>
+   sf::st_as_sf(crs = "epsg:4326")
Assuming matrix is in latitude/longitude
The CRS provided is not in meters; converting internally to UTM so area will be approximately correct.
d> rasTemplate <- terra::rast(terra::ext(studyArea), resolution = 1e-5, crs = "epsg:4326")
d> tsf <- SpaDES.tools::randomPolygons(rasTemplate, numTypes = 8) * 30
d> ## fails with st_crs()
d> reproducible::projectTo(tsf, projectTo = sf::st_crs("epsg:4326"))
    projecting...Error: [project] cannot get output boundaries
In addition: Warning messages:
1: [project,SpatRaster] argument y (the crs) should be a character value 
2: [project] Cannot set raster SRS: empty srs 
d> ## also fails with character
d> reproducible::projectTo(tsf, projectTo = "epsg:4326")
Error in (function (classes, fdef, mtable)  : 
  unable to find an inherited method for function ‘res’ for signature ‘"character"’

d> packageVersion("reproducible")
[1] ‘2.0.8.9001’
d> packageVersion("sf")
[1] ‘1.0.14’
d> packageVersion("SpaDES.tools")
[1] ‘2.0.4.9000’
d> packageVersion("terra")
[1] ‘1.7.46’