test(16.2): persist human verification items as UAT

.planning/phases/16.2-plugin-provided-field-types-and-the-blog-editor-formwidget/16.2-UAT.md

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+---
+status: testing
+phase: 16.2-plugin-provided-field-types-and-the-blog-editor-formwidget
+source: [16.2-VERIFICATION.md]
+started: 2026-10-10T14:54:46Z
+updated: 2026-10-10T14:54:46Z
+---
+
+## Current Test
+
+number: 1
+name: Postgres suites on a Docker host
+expected: |
+  bash scripts/check-phase16.2.sh postgres passes, which closes WINDOWS 11, 12, 14-16, 20 and 21.
+awaiting: user response
+
+## Tests
+
+### 1. Postgres suites on a Docker host
+expected: bash scripts/check-phase16.2.sh postgres passes. This is the end-to-end proof for the CR-01 and WR-04 Load changes and for the category save.
+result: [pending]
+
+### 2. D-19 category content on UAT (WINDOWS 18)
+expected: Change one word in a category body and save. No removal notice appears, and the site shows the change.
+result: [pending]
+
+### 3. Untouched re-save after the next deploy (with the CR-01/WR-04 fixes)
+expected: Re-save posts 1 and 64 untouched. The md5 SELECT is unchanged (1: a026264105f900175b9770e637e5ec5c both columns; 64: 0e4be845390b1656871513957d471a7c:e785e14e80f6400534e16b4769749d3c) and updated_at moves.
+result: [pending]
+
+### 4. Preview pane in a real browser (quick 261010-iwu)
+expected: 50/50 split; the pane wraps below the editor when the element is narrower than about 720px; a <script> in a raw HTML block stays inert; YouTube thumbnails load; relative /storage images resolve.
+result: [pending]
+
+### 5. Accept the sandboxed preview iframe as an exception to plan 02's "no iframe in the admin"
+expected: The human accepts the empty-sandbox srcdoc preview, or asks for a change.
+result: [pending]
+
+## Summary
+
+total: 5
+passed: 0
+issues: 0
+pending: 5
+skipped: 0
+blocked: 0
+
+## Gaps