Add the real-location reference folder and provenance sidecar

TODO.md

@@ -142,9 +142,12 @@ Licensed photos are evidence of what a place looks like, generated boards are ar
 proposals, and captures are proof that the build matches. Keep the three labelled and separate,
 and never ship a generated or downloaded image without provenance.
 
-- [ ] Create `docs/screens/refs/` with a README and a sidecar template: source URL, author,
+- [x] Create `docs/screens/refs/` with a README and a sidecar template: source URL, author,
       licence/attribution, capture or generation date, what it is evidence for, and whether it is
-      shipped or development-only.
+      shipped or development-only. (`docs/screens/refs/README.md` defines the layout, naming,
+      licence and privacy gates and the three-way separation from concepts and captures;
+      `SIDECAR-TEMPLATE.md` carries the photo table, redaction/permission notes, derived-decision
+      log and the generated-board reference table. Linked from `docs/screens/README.md`.)
 - [ ] Collect licence-cleared real-location photos for each venue (Wikimedia Commons, own captures,
       and Mapillary only where its licence allows) into per-venue boards there. No Street View,
       no scraped social media; link each board from its venue map doc.