attempt to move d1 id out of vcs

.env.example

@@ -4,3 +4,8 @@ RECFLARE_DOMAIN=rec.example.com
 # Optional per-app subdomain overrides, as a compact JSON object keyed by the
 # worker's directory name. Defaults to the directory name when unset.
 # RECFLARE_SUBDOMAINS={"playersettings":"settings"}
+
+# D1 database ids, as a compact JSON object keyed by the worker's directory name.
+# Kept out of the committed wrangler.jsonc (which uses a "local" placeholder) and
+# spliced in at deploy time. Required to deploy any worker that uses D1.
+# RECFLARE_D1={"rooms":"d44083e1-5bfe-4467-aa9a-f13c5c2496d5"}