migrate remaining admin pages to inline feedback

Replace put_flash with inline feedback for form saves:
- Media library: metadata save shows "Saved" checkmark
- Product show: storefront controls save shows "Saved" checkmark
- Newsletter campaign form: draft save shows "Saved" checkmark

Page-level outcomes (uploads, deletes, async operations) remain as
flash/banner messages — these are the correct pattern for non-form
actions.

Completes Task 4 of notification overhaul.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

PROGRESS.md

@@ -76,7 +76,7 @@ Replace floating toast/flash messages with inline feedback and persistent top ba
 | 1 | Build inline feedback component | 1.5h | done |
 | 2 | Build persistent top banner component (replaces flash) | 1.5h | done |
 | 3 | Migrate admin forms to inline feedback (theme, pages, settings, email, providers) | 3h | done |
-| 4 | Migrate remaining admin pages (media, products, activity, newsletter, redirects, nav) | 2h | planned |
+| 4 | Migrate remaining admin pages (media, products, activity, newsletter, redirects, nav) | 2h | done |
 | 5 | Migrate shop pages (cart, contact, checkout, auth) | 2h | planned |
 | 6 | Migrate setup wizard notifications | 1h | planned |
 | 7 | Remove old flash/toast CSS and JS | 30m | planned |

lib/berrypod_web/live/admin/media.ex

@@ -17,6 +17,7 @@ defmodule BerrypodWeb.Admin.Media do
       |> assign(:edit_form, nil)
       |> assign(:upload_alt, "")
       |> assign(:confirm_delete, false)
+      |> assign(:metadata_status, :idle)
       |> allow_upload(:media_upload,
         accept: ~w(.png .jpg .jpeg .webp .svg .gif),
         max_entries: 1,
@@ -114,7 +115,8 @@ defmodule BerrypodWeb.Admin.Media do
        |> assign(:selected_image, Map.put(image, :data, nil))
        |> assign(:selected_usages, usages)
        |> assign(:edit_form, form)
-       |> assign(:confirm_delete, false)}
+       |> assign(:confirm_delete, false)
+       |> assign(:metadata_status, :idle)}
     else
       {:noreply, socket}
     end
@@ -141,10 +143,10 @@ defmodule BerrypodWeb.Admin.Media do
          socket
          |> stream_insert(:images, updated_no_blob)
          |> assign(:selected_image, updated_no_blob)
-         |> put_flash(:info, "Metadata updated")}
+         |> assign(:metadata_status, :saved)}
 
       {:error, _changeset} ->
-        {:noreply, put_flash(socket, :error, "Failed to update metadata")}
+        {:noreply, assign(socket, :metadata_status, :error)}
     end
   end
 
@@ -398,9 +400,12 @@ defmodule BerrypodWeb.Admin.Media do
             <.input field={@edit_form[:alt]} label="Alt text" placeholder="Describe this image..." />
             <.input field={@edit_form[:caption]} label="Caption" placeholder="Optional caption..." />
             <.input field={@edit_form[:tags]} label="Tags" placeholder="hero, homepage, banner..." />
-            <button type="submit" class="admin-btn admin-btn-primary admin-btn-sm">
-              Save metadata
-            </button>
+            <div class="admin-form-actions-sm">
+              <button type="submit" class="admin-btn admin-btn-primary admin-btn-sm">
+                Save metadata
+              </button>
+              <.inline_feedback status={@metadata_status} />
+            </div>
           </.form>
 
           <%= if @selected_usages != [] do %>

lib/berrypod_web/live/admin/newsletter/campaign_form.ex

@@ -10,7 +10,8 @@ defmodule BerrypodWeb.Admin.Newsletter.CampaignForm do
      |> assign(:page_title, "New campaign")
      |> assign(:campaign, nil)
      |> assign(:subscriber_count, Newsletter.confirmed_subscriber_count())
-     |> assign(:form, to_form(%{"subject" => "", "body" => ""}, as: :campaign))}
+     |> assign(:form, to_form(%{"subject" => "", "body" => ""}, as: :campaign))
+     |> assign(:save_status, :idle)}
   end
 
   @impl true
@@ -42,7 +43,7 @@ defmodule BerrypodWeb.Admin.Newsletter.CampaignForm do
 
   @impl true
   def handle_event("validate", %{"campaign" => params}, socket) do
-    {:noreply, assign(socket, :form, to_form(params, as: :campaign))}
+    {:noreply, assign(socket, form: to_form(params, as: :campaign), save_status: :idle)}
   end
 
   def handle_event("save_draft", %{"campaign" => params}, socket) do
@@ -51,10 +52,10 @@ defmodule BerrypodWeb.Admin.Newsletter.CampaignForm do
         {:noreply,
          socket
          |> assign(:campaign, campaign)
-         |> put_flash(:info, "Campaign saved")}
+         |> assign(:save_status, :saved)}
 
       {:error, _changeset} ->
-        {:noreply, put_flash(socket, :error, "Please fill in subject and body")}
+        {:noreply, assign(socket, :save_status, :error)}
     end
   end
 
@@ -211,6 +212,7 @@ defmodule BerrypodWeb.Admin.Newsletter.CampaignForm do
             <.button type="submit">
               Save draft
             </.button>
+            <.inline_feedback status={@save_status} />
 
             <button
               type="button"

lib/berrypod_web/live/admin/product_show.ex

@@ -27,6 +27,7 @@ defmodule BerrypodWeb.Admin.ProductShow do
           |> assign(:page_title, product.title)
           |> assign(:product, product)
           |> assign(:form, form)
+          |> assign(:save_status, :idle)
 
         {:ok, socket}
     end
@@ -40,7 +41,7 @@ defmodule BerrypodWeb.Admin.ProductShow do
       |> Map.put(:action, :validate)
       |> to_form(as: "product")
 
-    {:noreply, assign(socket, :form, form)}
+    {:noreply, assign(socket, form: form, save_status: :idle)}
   end
 
   @impl true
@@ -63,12 +64,12 @@ defmodule BerrypodWeb.Admin.ProductShow do
           socket
           |> assign(:product, product)
           |> assign(:form, form)
-          |> put_flash(:info, "Product updated")
+          |> assign(:save_status, :saved)
 
         {:noreply, socket}
 
       {:error, changeset} ->
-        {:noreply, assign(socket, :form, to_form(changeset, as: "product"))}
+        {:noreply, assign(socket, form: to_form(changeset, as: "product"), save_status: :error)}
     end
   end
 
@@ -206,6 +207,7 @@ defmodule BerrypodWeb.Admin.ProductShow do
             />
           </label>
           <.button type="submit" variant="primary" class="admin-btn-sm">Save</.button>
+          <.inline_feedback status={@save_status} />
         </.form>
       </div>
     </div>