Replace emoji icons with a monochrome SVG icon set

Emoji (📚 🔖 🏷️ ✎ ✕ 🕓 ⏳ 🤖 ⚠️ 🔍) rendered in each platform's own
colorful style and looked inconsistent. Add app/templates/_icons.html
with small inline SVG macros (Lucide-style, MIT-licensed path data,
stroke=currentColor) and use them throughout instead, so icons pick
up the muted/accent text colors like the rest of the UI.

The needs-review bookmark toggle now uses an outline vs. filled icon
for its two states instead of swapping emoji.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

app/templates/_icons.html

@@ -0,0 +1,51 @@
+{#
+  Gemeinsame Icons (angelehnt an Lucide, MIT-lizenziert), inline als SVG.
+  Monochrom über currentColor – Farbe wird vom umgebenden Element gesetzt.
+  Verwendung: {% import "_icons.html" as icons %}  ...  {{ icons.edit() }}
+#}
+
+{% macro base(path, size=16) -%}
+<svg xmlns="http://www.w3.org/2000/svg" width="{{ size }}" height="{{ size }}" viewBox="0 0 24 24"
+     fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"
+     class="icon" aria-hidden="true">{{ path | safe }}</svg>
+{%- endmacro %}
+
+{% macro grid(size=16) -%}
+{{ base('<rect width="7" height="7" x="3" y="3" rx="1"/><rect width="7" height="7" x="14" y="3" rx="1"/><rect width="7" height="7" x="14" y="14" rx="1"/><rect width="7" height="7" x="3" y="14" rx="1"/>', size) }}
+{%- endmacro %}
+
+{% macro bookmark(filled=False, size=16) -%}
+{{ base('<path d="m19 21-7-4-7 4V5a2 2 0 0 1 2-2h10a2 2 0 0 1 2 2z"' + (' fill="currentColor"' if filled else '') + '/>', size) }}
+{%- endmacro %}
+
+{% macro edit(size=16) -%}
+{{ base('<path d="M17 3a2.85 2.83 0 1 1 4 4L7.5 20.5 2 22l1.5-5.5Z"/><path d="m15 5 4 4"/>', size) }}
+{%- endmacro %}
+
+{% macro trash(size=16) -%}
+{{ base('<path d="M3 6h18"/><path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6"/><path d="M8 6V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/><line x1="10" x2="10" y1="11" y2="17"/><line x1="14" x2="14" y1="11" y2="17"/>', size) }}
+{%- endmacro %}
+
+{% macro search(size=16) -%}
+{{ base('<circle cx="11" cy="11" r="8"/><path d="m21 21-4.3-4.3"/>', size) }}
+{%- endmacro %}
+
+{% macro plus(size=16) -%}
+{{ base('<path d="M5 12h14"/><path d="M12 5v14"/>', size) }}
+{%- endmacro %}
+
+{% macro alert(size=16) -%}
+{{ base('<path d="m21.73 18-8-14a2 2 0 0 0-3.46 0l-8 14A2 2 0 0 0 4 21h16a2 2 0 0 0 1.73-3Z"/><path d="M12 9v4"/><path d="M12 17h.01"/>', size) }}
+{%- endmacro %}
+
+{% macro sparkles(size=16) -%}
+{{ base('<path d="M9.937 15.5A2 2 0 0 0 8.5 14.063l-6.135-1.582a.5.5 0 0 1 0-.962L8.5 9.936A2 2 0 0 0 9.937 8.5l1.582-6.135a.5.5 0 0 1 .963 0L14.063 8.5A2 2 0 0 0 15.5 9.937l6.135 1.581a.5.5 0 0 1 0 .964L15.5 14.063a2 2 0 0 0-1.437 1.437l-1.582 6.135a.5.5 0 0 1-.963 0z"/>', size) }}
+{%- endmacro %}
+
+{% macro clock(size=16) -%}
+{{ base('<circle cx="12" cy="12" r="10"/><polyline points="12 6 12 12 16 14"/>', size) }}
+{%- endmacro %}
+
+{% macro spinner(size=16) -%}
+{{ base('<path d="M21 12a9 9 0 1 1-6.219-8.56"/>', size) }}
+{%- endmacro %}

app/templates/_link_card.html

@@ -1,3 +1,4 @@
+{% import "_icons.html" as icons %}
 <div class="panel link-card {% if link.needs_review %}needs-review{% endif %}" id="link-{{ link.id }}">
   <div class="card-head">
     <span class="card-avatar" style="--h: {{ link.url | hue }};">
@@ -14,23 +15,22 @@
     </div>
 
     <div class="card-actions">
-      <button class="ghost review-toggle {% if link.needs_review %}active{% endif %}"
+      <button class="ghost icon-btn review-toggle {% if link.needs_review %}icon-bookmark-active{% endif %}"
-              style="padding:3px 7px; font-size:.8rem;"
               title="{% if link.needs_review %}Nicht mehr zur Durchsicht{% else %}Zur Durchsicht markieren{% endif %}"
               hx-post="/links/{{ link.id }}/toggle-review"
               hx-target="#link-{{ link.id }}"
-              hx-swap="outerHTML">{% if link.needs_review %}🔖{% else %}🏷️{% endif %}</button>
+              hx-swap="outerHTML">{{ icons.bookmark(filled=link.needs_review) }}</button>
-      <button class="ghost" style="padding:3px 7px; font-size:.8rem;"
+      <button class="ghost icon-btn"
               title="Bearbeiten"
               hx-get="/links/{{ link.id }}/edit"
               hx-target="#link-{{ link.id }}"
-              hx-swap="outerHTML">✎</button>
+              hx-swap="outerHTML">{{ icons.edit() }}</button>
-      <button class="danger" style="padding:3px 6px;"
+      <button class="danger icon-btn"
               title="Löschen"
               hx-delete="/links/{{ link.id }}"
               hx-target="#link-{{ link.id }}"
               hx-swap="outerHTML"
-              hx-confirm="Diesen Link wirklich löschen?">✕</button>
+              hx-confirm="Diesen Link wirklich löschen?">{{ icons.trash() }}</button>
     </div>
   </div>
 
@@ -58,6 +58,8 @@
 
   <div class="card-foot">
     <span class="card-domain" title="{{ link.url }}">{{ link.url | domain }}</span>
-    <span title="hinzugefügt am {{ link.created_at | datum }}">{{ link.created_at | datum }}</span>
+    <span title="hinzugefügt am {{ link.created_at | datum }}">
+      {{ icons.clock(size=13) }} {{ link.created_at | datum }}
+    </span>
   </div>
 </div>

app/templates/_link_card_edit.html

@@ -1,3 +1,4 @@
+{% import "_icons.html" as icons %}
 <div class="panel link-card" id="link-{{ link.id }}">
   <form hx-put="/links/{{ link.id }}" hx-target="#link-{{ link.id }}" hx-swap="outerHTML"
         hx-disabled-elt="button">
@@ -5,7 +6,7 @@
       {{ link.url }}
     </div>
     <div class="muted" style="font-size:.75rem; margin:3px 0 10px;">
-      🕓 hinzugefügt am {{ link.created_at | datum }}
+      {{ icons.clock(size=13) }} hinzugefügt am {{ link.created_at | datum }}
     </div>
 
     <div class="field">
@@ -59,7 +60,8 @@
               hx-swap="outerHTML"
               hx-disabled-elt="this"
               hx-confirm="Link erneut laden und von der KI neu beschreiben lassen? Bestehende Angaben werden dabei ersetzt.">
-        <span class="htmx-indicator">⏳</span> 🤖 KI neu beschreiben lassen
+        <span class="htmx-indicator icon-spin">{{ icons.spinner(size=14) }}</span>
+        {{ icons.sparkles(size=14) }} KI neu beschreiben lassen
       </button>
       {% endif %}
     </div>

app/templates/base.html

@@ -128,6 +128,23 @@
     .htmx-indicator { opacity: 0; transition: opacity .2s; }
     .htmx-request .htmx-indicator { opacity: 1; }
     .htmx-request.htmx-indicator { opacity: 1; }
+
+    .icon { display: inline-block; vertical-align: -3px; flex-shrink: 0; }
+    .icon-spin { animation: icon-spin 0.8s linear infinite; }
+    @keyframes icon-spin { to { transform: rotate(360deg); } }
+    .icon-btn {
+      display: inline-flex; align-items: center; justify-content: center;
+      width: 30px; height: 30px; padding: 0;
+    }
+    .icon-warn { color: #eab308; }
+    .icon-bookmark-active { color: #eab308; }
+
+    .input-icon { position: relative; }
+    .input-icon > .icon {
+      position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
+      color: var(--muted); pointer-events: none;
+    }
+    .input-icon > input { padding-left: 36px; }
     footer.app-footer {
       text-align: center; padding: 16px 24px; margin-top: 24px;
       color: var(--muted); font-size: .8rem; border-top: 1px solid var(--border);

app/templates/index.html

@@ -1,12 +1,13 @@
 {% extends "base.html" %}
+{% import "_icons.html" as icons %}
 {% block title %}Meine Links · LinkVault{% endblock %}
 {% block body %}
 <header class="topbar">
   <div class="brand">Link<span>Vault</span></div>
   <div class="user-info">
     {% if not ai_enabled %}
-    <span title="Kein OPENAI_API_KEY gesetzt – Auto-Kategorisierung deaktiviert">
+    <span title="Kein OPENAI_API_KEY gesetzt – Auto-Kategorisierung deaktiviert" class="icon-warn">
-      ⚠️ KI aus
+      {{ icons.alert(size=14) }} KI aus
     </span>
     {% endif %}
     <span>{{ user.email }}</span>
@@ -20,7 +21,7 @@
   <aside class="sidebar">
     <div class="panel">
       <a href="/?sort={{ sort }}" class="facet {% if not active_category and not active_manufacturer and not review_only %}active{% endif %}">
-        <span>📚 Alle Links</span>
+        <span>{{ icons.grid(size=14) }} Alle Links</span>
       </a>
 
       <div class="facet-group">
@@ -50,7 +51,7 @@
       <div class="facet-group">
         <h3>Merkliste</h3>
         <a href="/?review=1&amp;sort={{ sort }}" class="facet {% if review_only %}active{% endif %}">
-          <span>🔖 Zur Durchsicht</span><span class="count">{{ facets.review_count }}</span>
+          <span>{{ icons.bookmark(size=14) }} Zur Durchsicht</span><span class="count">{{ facets.review_count }}</span>
         </a>
       </div>
     </div>
@@ -65,7 +66,8 @@
           <input type="url" name="url" placeholder="Link einfügen, z.B. https://hersteller.de/produkt" required
                  style="flex:1 1 220px; width:auto;">
           <button type="submit" style="white-space:nowrap;">
-            <span class="htmx-indicator">⏳</span> Hinzufügen
+            <span class="htmx-indicator icon-spin">{{ icons.spinner(size=14) }}</span>
+            {{ icons.plus(size=14) }} Hinzufügen
           </button>
         </div>
         <div class="muted" style="font-size:.8rem; margin-top:6px;">
@@ -79,11 +81,14 @@
         <input type="hidden" name="category" value="{{ active_category }}">
         <input type="hidden" name="manufacturer" value="{{ active_manufacturer }}">
         <input type="hidden" name="review" value="{{ '1' if review_only else '' }}">
+        <div class="input-icon">
+          {{ icons.search(size=15) }}
           <input type="text" name="q" value="{{ q }}"
-               placeholder="🔍 Suche in Titel, Zusammenfassung, Tags..."
+                 placeholder="Suche in Titel, Zusammenfassung, Tags..."
                  hx-get="/search" hx-target="#links" hx-swap="innerHTML"
                  hx-trigger="keyup changed delay:400ms, search"
                  hx-include="#searchform">
+        </div>
         <div style="display:flex; justify-content:space-between; align-items:center; gap:12px; margin-top:10px; flex-wrap:wrap;">
           {% if ai_enabled %}
           <label class="muted" style="display:inline-flex; align-items:center; gap:6px; font-size:.85rem;">