Footer: drop the duplicate build version, keep it in the header only

- Footer now shows just the storage path and active workers
- Version/env stays in the header status pill (spec updated to match)

frontend/design.md_j621_frontend_spec.md

@@ -83,8 +83,8 @@ All tag chips, counters, and sidebar taxonomy badges strictly adhere to e621's e
 - **Global Footer Status Strip (`#11111b`, height: 32px):**
   - The strip placement is a proposal; its values are real and drawn from the existing stats data.
   - Left: the watched folder path — `📁 Local Storage: /mnt/media/library`. This is the only place the path appears (J621 is folder-based; it is just a path on disk, not a NAS/appliance indicator).
-  - Center: `⚡ Active Workers: N running | Queue: M pending` — the count of active optimization/ingest jobs and queued downloads (the original app surfaced this on its stats page; the footer simply keeps it visible).
-  - Right: the running build — `<env> @ <git commit hash>` (e.g. `dev @ 3f35330`), matching the original app.
+  - Right: `⚡ Active Workers: N running | Queue: M pending` — the count of active optimization/ingest jobs and queued downloads (the original app surfaced this on its stats page; the footer simply keeps it visible).
+  - The build version (`<env> @ <git commit hash>`) is shown by the header status pill only — never repeated in the footer.
 - **Collapsible Sidebar (Behavior):**
   - **Closed by default** across all gallery and viewer views to prioritize screen real estate.
   - Toggled via `☰` button or quick keyboard shortcut (`Ctrl+B` or `⌘B`).

frontend/src/components/StatusFooter.tsx

@@ -1,7 +1,6 @@
 import { Folder, Zap } from "lucide-react";
 
 import type { SystemStatus } from "@/lib/types";
-import { APP_VERSION } from "@/lib/version";
 
 export function StatusFooter({ status }: { status?: SystemStatus }) {
   return (
@@ -17,7 +16,7 @@ export function StatusFooter({ status }: { status?: SystemStatus }) {
         </span>
 
         <span
-          className="hidden shrink-0 items-center gap-1.5 md:flex"
+          className="ml-auto hidden shrink-0 items-center gap-1.5 md:flex"
           title="Active background jobs"
         >
           <Zap className="h-3 w-3" />
@@ -28,10 +27,6 @@ export function StatusFooter({ status }: { status?: SystemStatus }) {
               : "…"}
           </span>
         </span>
-
-        <span className="ml-auto shrink-0" title="Running build">
-          {status?.version ?? APP_VERSION}
-        </span>
       </div>
     </footer>
   );