Bulk delete, editable share links, gallery filter fix

- shift-click selects ranges in the gallery; selection bar gains
  'Delete N' with a single confirm (POST /api/photos/delete)
- PATCH /api/shares/{id}: allow_download and expiry editable in place,
  token and client feedback preserved
- Gallery: re-attach ResizeObserver via callback ref — after a filter
  with zero matches the gallery stayed blank at width 0

src/routes/mod.rs

@@ -78,9 +78,13 @@ pub fn router(state: &AppState) -> Router<AppState> {
         )
         .route("/api/albums/{id}/zip", post(zip::album_zip))
         .route("/api/albums/{id}/photos/by-hash/{sha256}", get(photos::by_hash))
+        .route("/api/photos/delete", post(photos::delete_many))
         .route("/api/photos/{id}", delete(photos::delete))
         .route("/api/photos/{id}/reprocess", post(photos::reprocess))
-        .route("/api/shares/{id}", delete(shares::delete))
+        .route(
+            "/api/shares/{id}",
+            delete(shares::delete).patch(shares::update),
+        )
         .route("/api/shares/{id}/reset-lock", post(shares::reset_lock))
         .route_layer(middleware::from_fn_with_state(
             state.clone(),

src/routes/photos.rs

@@ -211,6 +211,35 @@ pub async fn delete(
     Ok(Json(serde_json::json!({ "ok": true })))
 }
 
+#[derive(Deserialize)]
+pub struct DeleteManyBody {
+    ids: Vec<Uuid>,
+}
+
+/// Bulk delete: photos vanish and their S3 cleanup jobs are enqueued in one
+/// statement, same as album deletion.
+pub async fn delete_many(
+    State(state): State<AppState>,
+    Json(body): Json<DeleteManyBody>,
+) -> ApiResult<Json<serde_json::Value>> {
+    if body.ids.is_empty() {
+        return Err(ApiError::bad_request("ids must not be empty"));
+    }
+    let mut tx = state.db.begin().await?;
+    let jobs = sqlx::query(
+        "with deleted as (delete from photos where id = any($1) returning id)
+         insert into jobs (kind, payload)
+         select $2, jsonb_build_object('prefix', 'photos/' || id || '/')
+         from deleted",
+    )
+    .bind(&body.ids)
+    .bind(JobKind::DeleteS3Prefix.as_str())
+    .execute(&mut *tx)
+    .await?;
+    tx.commit().await?;
+    Ok(Json(serde_json::json!({ "ok": true, "deleted": jobs.rows_affected() })))
+}
+
 pub async fn reprocess(
     State(state): State<AppState>,
     Path(photo_id): Path<Uuid>,

src/routes/shares.rs

@@ -138,6 +138,49 @@ pub async fn create(
     Ok(Json(share_json(&state, &row)))
 }
 
+/// Distinguishes an absent JSON field (keep current value) from an explicit
+/// null (clear the expiry): absent → None, present → Some(inner).
+fn double_option<'de, D>(de: D) -> Result<Option<Option<DateTime<Utc>>>, D::Error>
+where
+    D: serde::Deserializer<'de>,
+{
+    serde::Deserialize::deserialize(de).map(Some)
+}
+
+#[derive(Deserialize)]
+pub struct UpdateShare {
+    allow_download: Option<bool>,
+    #[serde(default, deserialize_with = "double_option")]
+    expires_at: Option<Option<DateTime<Utc>>>,
+}
+
+pub async fn update(
+    State(state): State<AppState>,
+    Path(share_id): Path<Uuid>,
+    Json(body): Json<UpdateShare>,
+) -> ApiResult<Json<serde_json::Value>> {
+    let updated = sqlx::query(
+        "update shares set
+             allow_download = coalesce($2, allow_download),
+             expires_at = case when $3 then $4 else expires_at end
+         where id = $1",
+    )
+    .bind(share_id)
+    .bind(body.allow_download)
+    .bind(body.expires_at.is_some())
+    .bind(body.expires_at.flatten())
+    .execute(&state.db)
+    .await?;
+    if updated.rows_affected() == 0 {
+        return Err(ApiError::not_found());
+    }
+    let row: ShareAdminRow = sqlx::query_as(&format!("{SHARE_SELECT} where s.id = $1"))
+        .bind(share_id)
+        .fetch_one(&state.db)
+        .await?;
+    Ok(Json(share_json(&state, &row)))
+}
+
 /// Clear a share's password-lockout state (e.g. after a client fat-fingered
 /// their way into the 15-minute lock).
 pub async fn reset_lock(