homepage: icon swaps, clickable tiles, down pulse, header nav, compaction callout

- Icons: Copyparty -> improvised amber folder, Marreta -> crumbling
  wall (bricks + red crack), Calibre-Web -> book, OpenWebUI -> official
  logo.png from openwebui.com, Seerr -> official seerr.dev
  os_logo_filled.svg.
- Tiles with an open link are clickable whole (.panel.clickable: hover
  lift + glow; inner link clicks pass through).
- Any DOWN panel (app tile or model card) gets a red gradient wash and a
  slow pulsing glow (.panel.down, .mi-card:has(.badge.down)).
- docs / admin / account-settings buttons moved from the footer to the
  header (nav.top-links); footer keeps the deployment stamp.
- Zealot compaction advice promoted from the Use paragraph to a bordered
  glowing model.compaction callout (.mi-comp); component seam pinned to
  the new field.

tests/homepage_config.bats

@@ -94,7 +94,8 @@ for s in fleet:
     for f in m["sfx"] + m.get("voice", {}).get("sfx", []):
         assert os.path.isfile(os.path.join(root, "sfx", f)), f"{s['name']} voice {f} missing"
 zealot = next(s for s in fleet if s["name"] == "frank-zealot")
-assert "compaction" in zealot["model"]["use"].lower(), "zealot must be recommended as compaction model"
+assert "compaction" in zealot["model"].get("compaction", ""), "zealot must be recommended as compaction model"
+assert zealot["model"].get("compaction", "") != "", "compaction advice must be its own visible field"
 assert "supervision" in zealot["model"]["supervision"].lower()
 for s in fleet:
     m = s["model"]