feat(F-060): completed feature

backlog/features.json

@@ -3091,6 +3091,39 @@
         "close": true
       },
       "completed_at": "2026-08-19T13:32:56Z"
+    },
+    {
+      "id": "F-060",
+      "type": "chore",
+      "title": "Regenerate cached thumbnails with fit inside max-h cap",
+      "problem": "generate-thumbnails.mjs uses old resize pattern that has no max-height cap and skips already cached files",
+      "goal": "All cached thumbnails regenerated with fit inside max-h size times 1.4",
+      "scope_in": [
+        "Update generate-thumbnails.mjs to use fit inside and max-h cap matching the upload route; add FORCE flag to regenerate existing cached thumbnails; rerun script and verify all thumbs match new behavior"
+      ],
+      "scope_out": [
+        "No API changes",
+        "no schema change"
+      ],
+      "priority": "med",
+      "risk": "low",
+      "description": "Problem: generate-thumbnails.mjs uses old resize pattern that has no max-height cap and skips already cached files. Goal: All cached thumbnails regenerated with fit inside max-h size times 1.4. Scope IN: Update generate-thumbnails.mjs to use fit inside and max-h cap matching the upload route; add FORCE flag to regenerate existing cached thumbnails; rerun script and verify all thumbs match new behavior. Scope OUT: No API changes, no schema change. Type: chore. Priority: med. Risk: low.",
+      "acceptance": [
+        "generate-thumbnails.mjs uses fit inside with maxHeight size times 1.4",
+        "FORCE flag regenerates existing cached thumbnails",
+        "All cached thumbnails now use the new bounded-box behavior matching upload route",
+        "Non-square source thumbnails are not cropped",
+        "verify.sh is green"
+      ],
+      "status": "done",
+      "created_at": "2026-08-19",
+      "gates": {
+        "reviewer": true,
+        "security": true,
+        "qa": true,
+        "close": true
+      },
+      "completed_at": "2026-08-19T14:49:16Z"
     }
   ]
 }