chore: articles localization groundwork

docs/design/screens/localization-permissions.md

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+# Permission states (per version)
+
+Visual reference: `RenewCMS Screens Localization.dc.html`, group "L5b Permission states (per version)".
+
+Read [localization.md](../localization.md) first. Its integration decisions supersede conflicting board annotations. These states describe target behavior, not shipped behavior.
+
+Route: `/article/{id}/edit`
+
+### Permission states (per version) (group "L5b Permission states (per version)", 7 states)
+
+| # | State | Trigger | Stable ID | Frame selector |
+|---|---|---|---|---|
+| 1 | Read-only version | No Save, Publish, Delete, toolbar | `loc.l5b.ro` | `ed:ro` |
+| 2 | Read-only: menu | No Add translation row | `loc.l5b.roMenu` | `ed:roMenu` |
+| 3 | Edit, no publish | Save only | `loc.l5b.p2` | `ed:p2` |
+| 4 | Publish, no edit | Publish only; fields read-only | `loc.l5b.p3` | `ed:p3` |
+| 5 | Sibling readable, not editable | German tagged Read only | `loc.l5b.p4` | `ed:p4` |
+| 6 | Sibling not readable | German absent, no count | `loc.l5b.p5` | `ed:p5` |
+| 7 | Can create, not modify all | Story delete and move disabled | `loc.l5b.p6` | `ed:p6` |
+
+Exact rendered copy and geometry are in `source/LocaleFrame.dc.html` for the selector above. Use Nuxt UI mappings in `components.md`; the frame markup is a visual reference, not production component code.
+
+The standard captures are 1440×900 and 390×844 in light and dark. The narrow reference state also uses 1024×768. The visual harness must support these sources and sizes before this screen can pass its gate. No visual exceptions or new clock-sensitive skips are approved.