library: stand a frame up in the catalogue, wall, strip and studio

The library stage carried no way to correct a frame shot on its side, and
nothing kept the correction. A quarter turn now rides on the catalogue row
(`rot`, beside `star`, carried over by a rescan), the two chips under the
preview step it, and the tile, the strip thumbnail and the stage all read it
through one bake so a frame is never stood on its side in one place and
upright in another. The studio opens a frame at that angle and a turn made
there is filed straight back onto the row, so either end of the turn is
what the frame comes up at next time.

docker/frontend/src/App.tsx

@@ -18,7 +18,7 @@ import { renderPhoto, type RenderAssets } from './engine/exportEngine';
 import { download, fileToBytes, readCapturedAt, readGps, readIso, resizedJpeg, scaledJpeg } from './engine/imageOps';
 import { developRaw, isRawName } from './engine/rawDevelop';
 import { clearRaw, readRaw, storeRaw } from './engine/rawStore';
-import { getPhoto, loadEdit, readPhotoFile, saveEdit } from './engine/library';
+import { getPhoto, loadEdit, readPhotoFile, saveEdit, setRotation as savePhotoRotation } from './engine/library';
 import { offerInstall } from './pwa/install';
 import { cameraSupported } from './engine/camera';
 import { clearSession, forgetPhoto, loadPhoto, loadState, savePhoto, saveState } from './engine/session';
@@ -2051,6 +2051,11 @@ export function Workspace() {
         await loadFile(await readPhotoFile(row));
         const saved = await loadEdit(id);
         if (saved) applyRecipe(saved.recipe);
+        // The catalogue's own standing for this frame, which the reader set on
+        // the library's stage: the studio opens the negative the way they last
+        // saw it, at the same angle. It arrives after `loadFile`, which puts the
+        // frame on the neutral look and so at 0.
+        setRotation(row.rot ?? 0);
         setLibPhotoId(id);
       } catch {
         setError(t('err.decode'));
@@ -2070,6 +2075,15 @@ export function Workspace() {
     return () => clearTimeout(timer);
   }, [libPhotoId, source, recipe]);
 
+  // The same filing for the frame's own standing: the catalogue opened this
+  // frame at an angle, and a turn made here is that number's to keep — the
+  // library then shows the frame the way it was left, without a second turn.
+  // The ROTATE chip steps a quarter at a time, so there is nothing to debounce.
+  useEffect(() => {
+    if (!libPhotoId || !source) return;
+    void savePhotoRotation(libPhotoId, rotation);
+  }, [libPhotoId, source, rotation]);
+
   // The saved frame's own switch. The reel reads `consent`, so the tick answers
   // the click at once; only the store's refusal (a failed call) takes it back.
   const togglePhotoConsent = useCallback(async (photo: Photo | undefined) => {