Added batch process and test

templates/index.html

@@ -18,11 +18,22 @@
         <button class="btn btn-primary">Run Sync Now</button>
       {% endif %}
     </form>
+    {% if not sync_running %}
+    <form method="post" action="/sync/test" style="display:inline">
+      <button class="btn btn-secondary">Test (1 zip)</button>
+    </form>
+    {% endif %}
   </div>
 </div>
+{% if batch_size > 0 %}
+<p class="muted small" style="margin-bottom:1.5rem">Batch size: {{ batch_size }} zips per chunk — full sync processes all unprocessed files.</p>
+{% endif %}
 
 {% if request.query_params.get("started") %}
-  <div class="alert alert-success">Sync started in background.</div>
+  <div class="alert alert-success">Sync started — processing all unprocessed archives{% if batch_size > 0 %} in batches of {{ batch_size }}{% endif %}.</div>
+{% endif %}
+{% if request.query_params.get("test_started") %}
+  <div class="alert alert-success">Test sync started — processing 1 archive.</div>
 {% endif %}
 {% if request.query_params.get("already_running") %}
   <div class="alert alert-warning">A sync is already running.</div>

templates/settings.html

@@ -113,6 +113,15 @@
              placeholder="0">
       <p class="muted small">Set to 0 to disable automatic sync. Changes take effect immediately on save. Examples: 60 = hourly, 1440 = daily.</p>
     </div>
+
+    <div class="form-row">
+      <label for="sync_batch_size">Batch size (zips per chunk)</label>
+      <input id="sync_batch_size" name="sync_batch_size" type="number"
+             min="0" step="1" style="width:8rem"
+             value="{{ s.get('sync_batch_size','0') }}"
+             placeholder="0">
+      <p class="muted small">Each sync run processes <strong>all</strong> unprocessed files, but works through them in chunks of this size to limit temp disk usage. Set to 0 to process all at once.</p>
+    </div>
   </section>
 
   <div class="form-actions">