Add deployment pipeline and clean up repo

- Add Dockerfile, docker-compose.yml, .dockerignore, .env (port 3842)
- Add Caddyfile.snippet for analytics gateway import pattern
- Add .gitea/workflows/deploy.yaml for act_runner SSH deploy
- Untrack sensitive/data files (SCPA xlsx, owners.rds)
- Add renv lockfile and infrastructure files
- Reorganize data-raw scripts and add SarasotaCounty boundary data
- Move www assets to www/images/, add docs PDFs

data-raw/sarco/create_building_footprints.R

@@ -0,0 +1,56 @@
+# create_building_footprints.R
+# Pull Sarasota County building footprints clipped to St. Andrews boundary.
+# Source: https://ags3.scgov.net/server/rest/services/Hosted/BuildingFootprint/FeatureServer/0
+# Output: data-raw/sarco/building_footprints/building_footprints.gpkg
+# No esri2sf needed — queries ArcGIS REST API directly via GeoJSON URL.
+
+library(sf)
+library(dplyr)
+
+# load st. andrews subdivision boundary ----
+plats <- st_read("./data/plats/plats.shp", quiet = TRUE) |> st_transform(4326)
+boundary <- st_union(plats)
+bb <- st_bbox(boundary)
+
+# build arcgis rest query url ----
+base_url <- "https://ags3.scgov.net/server/rest/services/Hosted/BuildingFootprint/FeatureServer/0/query"
+geometry  <- paste(bb["xmin"], bb["ymin"], bb["xmax"], bb["ymax"], sep = ",")
+params <- paste0(
+  "?where=1=1",
+  "&geometry=", geometry,
+  "&geometryType=esriGeometryEnvelope",
+  "&inSR=4326",
+  "&spatialRel=esriSpatialRelIntersects",
+  "&outFields=*",
+  "&returnGeometry=true",
+  "&f=geojson"
+)
+url <- paste0(base_url, params)
+cat("URL:\n", url, "\n\n")
+
+# fetch ----
+cat("Querying feature service...\n")
+footprints_raw <- st_read(url, quiet = TRUE)
+cat("Raw rows:", nrow(footprints_raw), "\n")
+cat("Raw fields:", paste(names(footprints_raw), collapse = ", "), "\n\n")
+
+# clip to exact subdivision boundary ----
+footprints <- footprints_raw |>
+  st_transform(4326) |>
+  st_filter(boundary)
+
+# inspect ----
+cat("Rows:", nrow(footprints), "\n")
+cat("\nFields:\n")
+print(names(footprints))
+cat("\nSample rows:\n")
+print(head(st_drop_geometry(footprints)))
+
+# save ----
+st_write(
+  footprints,
+  "./data-raw/sarco/building_footprints/building_footprints.gpkg",
+  delete_dsn = TRUE
+)
+
+cat("\nSaved to data-raw/sarco/building_footprints/building_footprints.gpkg\n")