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.

templates/_shell.html

@@ -45,19 +45,28 @@ provenance.
     <span class="tt-head-clock" id="head-clock"></span>
   </header>
 
-  <main class="tt-page">
-    {% block content %}{% endblock %}
-  </main>
-
   {#- Fastext: the four coloured keys. Each page names its own four, so the
-      keys always point somewhere useful from where you are. -#}
-  <nav class="fastext" aria-label="Fastext">
+      keys always point somewhere useful from where you are. On the index
+      it stays the closing row, under Now Showing/Just Added, since the
+      index's own body already is the full nav. Everywhere else it leads,
+      right under the header, since it's the only nav those pages carry. -#}
+  {% set fastext_nav %}
+  <nav class="fastext{{ '' if page == 'home' else ' fastext-top' }}" aria-label="Fastext">
     {% for cls, key, num, label, href in fastext %}
     <a class="{{ cls }}" href="{{ request.script_root }}{{ href }}" data-key="{{ key }}">
       <span>{{ num }} {{ label }}</span>
     </a>
     {% endfor %}
   </nav>
+  {% endset %}
+
+  {% if page != 'home' %}{{ fastext_nav }}{% endif %}
+
+  <main class="tt-page">
+    {% block content %}{% endblock %}
+  </main>
+
+  {% if page == 'home' %}{{ fastext_nav }}{% endif %}
 
   <footer class="tt-foot">
     <span>MEDIA CENTRE</span>

templates/discover.html

@@ -1,11 +1,40 @@
 {% extends "_shell.html" %}
-{% from "_macros.html" import tile %}
+{% from "_macros.html" import tile, service_error %}
 {% block title %}P103 Discover{% endblock %}
 
 {% block content %}
   <h1 class="tt-dh bloom tt-masthead">DISCOVER</h1>
   <p class="tt-empty">Popular right now, with anything already in library filtered out.</p>
 
+  {#- Search sits at the top for the same reason it does on Library: a
+      title in mind is the common case. This one asks Ombi, which already
+      sits in front of TheMovieDB/TVDB, then lets you add straight to
+      Radarr/Sonarr from the result. -#}
+  <form class="tt-search" action="{{ request.script_root }}/discover" method="get" role="search">
+    <label class="visually-hidden" for="q">Search Ombi for a title</label>
+    <input class="tt-input" type="search" id="q" name="q" value="{{ q }}"
+           placeholder="SEARCH TO ADD" autocomplete="off" spellcheck="false">
+    <button class="tt-btn" type="submit">Search</button>
+  </form>
+
+  {% if search %}
+    <div class="tt-field">
+      <span>Results</span>
+      <span class="tt-field-meta">&ldquo;{{ q }}&rdquo;</span>
+    </div>
+    {% if search.status != 'ok' %}
+      {{ service_error('Ombi', search.error) }}
+    {% elif search.results %}
+      <div class="tt-tiles">
+        {% for it in search.results %}
+          {{ tile(it.title, it.kind ~ (' · Held' if it.held else ''), it.poster, it.year, ('' if it.held else '+ Add'), it.target) }}
+        {% endfor %}
+      </div>
+    {% else %}
+      <p class="tt-empty">No matches for &ldquo;{{ q }}&rdquo;.</p>
+    {% endif %}
+  {% endif %}
+
   <div class="tt-field">
     <span>Films</span>
     <span class="tt-field-meta">{{ rt_movies | length }} not in library</span>

templates/library.html

@@ -14,6 +14,22 @@
     <button class="tt-btn" type="submit">Search</button>
   </form>
 
+  {% if search_results is not none %}
+    <div class="tt-field">
+      <span>Results</span>
+      <span class="tt-field-meta">{{ search_results | length }} match{{ 'es' if search_results | length != 1 else '' }}</span>
+    </div>
+    {% if search_results %}
+      <div class="tt-tiles">
+        {% for it in search_results %}
+          {{ tile(it.title, it.kind, it.poster, it.year) }}
+        {% endfor %}
+      </div>
+    {% else %}
+      <p class="tt-empty">No matches for &ldquo;{{ q }}&rdquo;.</p>
+    {% endif %}
+  {% endif %}
+
   <div class="tt-field">
     <span>Holdings</span>
     <span class="tt-field-meta">
@@ -55,7 +71,7 @@
     {{ service_error('Radarr', radarr.error) }}
   {% endif %}
 
-  {% if recently_added %}
+  {% if not q and recently_added %}
     <div class="tt-field"><span>Newest In</span></div>
     <div class="tt-tiles">
       {% for it in recently_added %}