Move fastext nav to page top, fix Settings header, add working search

- Fastext colour keys now lead every page but the index, since they're
  the only nav those pages carry; the index keeps them as its closing
  row since its own body is already the full nav.
- Settings page was missing page="settings" in its render_template
  call, so its header silently fell back to "P100 Index".
- Library's search form posted a q param the route never read; it now
  filters the cached Sonarr/Radarr lists and shows matching tiles.
- Discover gained a search bar that queries Ombi (already in front of
  TMDB/TVDB) and lets you add a result straight to Radarr/Sonarr,
  showing "Held" instead of a button for anything already in library.
- Fixed the Add button's success check, which read d.ok against a
  response that actually sets d.success — it reported FAILED even
  when the add worked.

app.py

@@ -726,6 +726,61 @@ def ombi_get(endpoint):
     return resp.json()
 
 
+def _tmdb_poster(path):
+    """Ombi's movie search returns a bare TMDB path ('/abc123.jpg'), not a
+    usable URL; TV search returns a full TVDB banner URL already."""
+    if not path:
+        return ""
+    if path.startswith("http"):
+        return path
+    return f"https://image.tmdb.org/t/p/w300{path}"
+
+
+def ombi_search(q, limit=12):
+    """Movies and TV matching q, via Ombi's own search — it already sits in
+    front of TheMovieDB/TVDB, so this is one call instead of two more API
+    keys. Cross-referenced against the cached Sonarr/Radarr title sets so a
+    title already held shows that instead of an Add button.
+    """
+    term = q.strip()
+    if not term:
+        return {"status": "ok", "results": []}
+    encoded = requests.utils.quote(term)
+    try:
+        radarr_titles = {t.lower() for t in get_radarr_summary().get("radarr_titles", [])}
+        sonarr_titles = {t.lower() for t in get_sonarr_summary().get("sonarr_titles", [])}
+        results = []
+        try:
+            for m in ombi_get(f"Search/movie/{encoded}")[:limit]:
+                title = m.get("title", "")
+                results.append({
+                    "title":  title,
+                    "year":   (m.get("releaseDate") or "")[:4],
+                    "poster": _tmdb_poster(m.get("posterPath")),
+                    "kind":   "Film",
+                    "target": "radarr",
+                    "held":   bool(m.get("available")) or title.lower() in radarr_titles,
+                })
+        except Exception:
+            pass
+        try:
+            for s in ombi_get(f"Search/tv/{encoded}")[:limit]:
+                title = s.get("title", "")
+                results.append({
+                    "title":  title,
+                    "year":   (s.get("firstAired") or "")[:4],
+                    "poster": s.get("banner") or _tmdb_poster(s.get("posterPath")),
+                    "kind":   "TV",
+                    "target": "sonarr",
+                    "held":   bool(s.get("available")) or title.lower() in sonarr_titles,
+                })
+        except Exception:
+            pass
+        return {"status": "ok", "results": results}
+    except Exception as e:
+        return {"status": "error", "error": str(e), "results": []}
+
+
 def _ombi_status_label(available, approved, denied):
     if denied:
         return "Denied"
@@ -1404,6 +1459,41 @@ def get_recently_added(limit=6):
     return items
 
 
+def search_library(q, limit=24):
+    """Titles in Sonarr/Radarr matching q, case-insensitive substring.
+
+    Filters the same cached lists get_recently_added uses — no new fetch.
+    """
+    needle = q.strip().lower()
+    if not needle:
+        return []
+    items = []
+    try:
+        for sr in sonarr_series_cached():
+            if needle in sr.get("title", "").lower():
+                items.append({
+                    "title":  sr.get("title", "Unknown"),
+                    "kind":   "TV",
+                    "year":   str(sr.get("year", "")),
+                    "poster": _poster_url(sr.get("images")),
+                })
+    except Exception:
+        pass
+    try:
+        for mv in radarr_movies_cached():
+            if needle in mv.get("title", "").lower():
+                items.append({
+                    "title":  mv.get("title", "Unknown"),
+                    "kind":   "Film",
+                    "year":   str(mv.get("year", "")),
+                    "poster": _poster_url(mv.get("images")),
+                })
+    except Exception:
+        pass
+    items.sort(key=lambda x: x["title"].lower())
+    return items[:limit]
+
+
 def get_activity_feed(sabnzbd, ombi, limit=25):
     """A single chronological feed assembled from what the fetchers return.
 
@@ -1508,9 +1598,11 @@ def watch_page():
 @login_required
 def library_page():
     r = fetch_services(["sonarr", "radarr"])
+    q = request.args.get("q", "").strip()
     return render_template("library.html", page="library",
                            sonarr=r["sonarr"], radarr=r["radarr"],
-                           recently_added=get_recently_added(12))
+                           recently_added=get_recently_added(12),
+                           q=q, search_results=search_library(q) if q else None)
 
 
 @app.route("/discover")
@@ -1519,9 +1611,11 @@ def discover_page():
     r = fetch_services(["sonarr", "radarr", "rt_movies", "rt_tv"])
     sonarr_titles = set(r["sonarr"].get("sonarr_titles", []))
     radarr_titles = set(r["radarr"].get("radarr_titles", []))
+    q = request.args.get("q", "").strip()
     return render_template("discover.html", page="discover",
                            rt_movies=_filter_rt(r["rt_movies"], radarr_titles),
-                           rt_tv=_filter_rt(r["rt_tv"], sonarr_titles))
+                           rt_tv=_filter_rt(r["rt_tv"], sonarr_titles),
+                           q=q, search=ombi_search(q) if q else None)
 
 
 @app.route("/requests")
@@ -1760,7 +1854,7 @@ def api_delete_show():
 @login_required
 def settings_page():
     s = load_settings()
-    return render_template("settings.html",
+    return render_template("settings.html", page="settings",
         timezone=s.get("timezone", "America/New_York"),
         sonarr_api_key=SONARR_API_KEY,
         radarr_api_key=RADARR_API_KEY,