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_geometry_lookup.R

@@ -0,0 +1,24 @@
+# create_geometry_lookup.R
+# One-time script. Extracts account_number -> geometry from the manually
+# corrected QGIS file and saves as a stable lookup table.
+# Re-run only if geometry ever needs to be corrected.
+# Output: data-raw/addresses/geometry_lookup.rds
+
+library(sf)
+library(dplyr)
+
+raw <- st_read(
+  "./data-raw/addresses/owners_moved.gpkg",
+  layer = "owners_raw",
+  quiet = TRUE
+)
+cat("Columns:", paste(names(raw), collapse = ", "), "\n")
+
+lookup <- raw |>
+  select(account_number)
+
+cat("Lookup rows:", nrow(lookup), "\n")
+cat("Any duplicate account numbers:", anyDuplicated(lookup$account_number) > 0, "\n")
+
+saveRDS(lookup, "./data-raw/addresses/geometry_lookup.rds")
+cat("Saved to data-raw/addresses/geometry_lookup.rds\n")