docs(phase-12): resolve UAT gaps and debug sessions after 12-05 gap closure

.planning/phases/12-cloud-resource-foundation/12-UAT.md

@@ -1,5 +1,5 @@
 ---
-status: diagnosed
+status: resolved
 phase: 12-cloud-resource-foundation
 source:
   - 12-01-SUMMARY.md
@@ -7,7 +7,7 @@ source:
   - 12-03-SUMMARY.md
   - 12-04-SUMMARY.md
 started: 2026-06-19T20:21:31+02:00
-updated: 2026-06-19T20:28:00+02:00
+updated: 2026-06-20T00:00:00+02:00
 ---
 
 ## Current Test
@@ -64,7 +64,7 @@ blocked: 4
 ## Gaps
 
 - truth: "A clean start applies migration 0006 and the authenticated Cloud Storage page loads without backend schema errors."
-  status: failed
+  status: resolved
   reason: "User reported: GET /api/cloud/connections raises psycopg.errors.UndefinedColumn because cloud_connections.display_name_override does not exist in the live PostgreSQL schema."
   severity: blocker
   test: 1
@@ -81,7 +81,7 @@ blocked: 4
     - "Add cold-start migration regression and deployment documentation."
   debug_session: ".planning/debug/phase-12-cloud-schema-cold-start.md"
 - truth: "A user can connect Nextcloud accounts and each connected account appears as an independently renameable cloud root."
-  status: failed
+  status: resolved
   reason: "User reported: Cannot connect Nextcloud test users; POST /api/cloud/connections/webdav fails because cloud_connections.display_name_override does not exist."
   severity: blocker
   test: 2