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/create_venice_bndry.R

@@ -0,0 +1,15 @@
+library(rmapshaper)
+library(dplyr)
+library(sf)
+library(leaflet)
+library(sfheaders)
+
+df <- st_read("./data-raw/SarasotaCountyBoundary/") %>% 
+  filter(municipali == "CV") %>%
+  filter(acreage > 2500) %>% 
+  ms_simplify(keep = .025) %>% 
+  mutate(geometry = sfheaders::sf_remove_holes(geometry)) %>% 
+  sf::st_transform(crs = 4326) %>% 
+  mutate(label = "City of Venice", .before = boundarycl) %>% 
+  saveRDS(., file = "./data/venice.rds")
+