fix(iac): import existing EU R2 bucket into state

Run #28 applied cleanly except cloudflare_r2_bucket.arcodange_tf: the bucket
exists in the EU jurisdiction, but its prior state entry lacked the jurisdiction,
so cloudflare provider >=5.20 read it as not-found, removed it from state, and
then failed to recreate it ("already exists"). Add a config-driven import block
with the jurisdiction-qualified id (<account_id>/<bucket_name>/<jurisdiction>) so
the next apply adopts the real bucket. No-op once reconciled; removable after.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

iac/cloudflare.tf

@@ -14,6 +14,16 @@ resource "cloudflare_r2_bucket" "arcodange_tf" {
   jurisdiction = "eu"
 }
 
+# One-time state reconcile. The arcodange-tf R2 bucket already exists in the EU jurisdiction, but its
+# prior state entry lacked the jurisdiction, so cloudflare provider >= 5.20 read it as "not found" and
+# tried to recreate it (which fails: "already exists"). Re-import it with the jurisdiction-qualified id
+# (<account_id>/<bucket_name>/<jurisdiction>) so the next apply adopts the real bucket instead.
+# This block is a no-op once the bucket is in state and can be removed afterwards.
+import {
+  to = cloudflare_r2_bucket.arcodange_tf
+  id = "f7fcf28c0823cecb44e53b6e92d5144f/arcodange-tf/eu"
+}
+
 module "cf_r2_arcodange_tf_token" {
   source     = "./modules/cloudflare_token"
   account_id = local.cloudflare_account_id