feat(ui): V2 Design-Fundament — UI-Komponenten konsolidieren und tokenisieren

## Neue wiederverwendbare Komponenten in components/ui/:
- StatusDot.vue — Animierte Status-Punkte (work/think/idle/block/queue)
- PageHeading.vue — Standardisierter Gradient-Seiten-Header
- EmptyState.vue — Shared Empty-State mit Icon/Title/Description/Action
- ActivityTimeline.vue — Wiederverwendbarer Aktivitäts-Feed
- SectionHeader.vue — Spalten-/Sektions-Header (dot + label + count)

## Token-Konformität hergestellt:
- Badge.vue: +12 nexus-token-basierte Varianten (work/think/blocked/queue/done/review/iris/bao/agent/priority*)
- Card.vue: glass-panel/raised/subtle Varianten via nexus-tokens.css
- button/index.ts: +gradient, +icon, +ghostSubtle, +danger Varianten
- nexus-tokens.css: Buttons + --clr-* Semantic Colors (iris/bao/agent/review/stale/other)

## Hartkodierte Farben eliminiert (0 verbleibend):
- dashboard/v2/*: alle #hex → var(--)* ersetzt
- components/ui/*: alle #hex → var(--)* ersetzt

Task: ea7c2063
Build: ✅ grün

frontend/src/assets/nexus-tokens.css

@@ -37,6 +37,14 @@
   --st-block: #fb7185;
   --st-idle:  #6b6796;
 
+  /* ── Agent/Role Semantic Colors ───────────────────── */
+  --clr-iris:   #c084fc;
+  --clr-bao:    #60a5fa;
+  --clr-agent:  #6ee7b7;
+  --clr-review: #fdba74;
+  --clr-stale:  #fda4af;
+  --clr-other:  #fb923c;
+
   /* ── Glows ────────────────────────────────────────── */
   --glow:        0 0 0 1px rgba(124,108,255,.20), 0 0 28px -4px rgba(124,108,255,.55);
   --glow-blue:   0 0 24px -2px rgba(79,124,255,.65);
@@ -78,6 +86,13 @@
   --text-secondary: var(--tx-2);
   --text-muted: var(--tx-3);
   --text-dim: var(--tx-3);
+
+  /* Agent semantic colors (legacy aliases) */
+  --nx-iris:   var(--clr-iris);
+  --nx-bao:    var(--clr-bao);
+  --nx-agent:  var(--clr-agent);
+  --nx-review: var(--clr-review);
+  --nx-stale:  var(--clr-stale);
 }
 
 /* ── Glass card utility ────────────────────────────── */
@@ -133,3 +148,53 @@
 /* ── Typography helpers ────────────────────────────── */
 .font-display { font-family: 'Space Grotesk', sans-serif; }
 .font-mono-v2 { font-family: 'JetBrains Mono', monospace; font-variant-numeric: tabular-nums; }
+
+/* ── Button Variants (nexus-token-basiert) ──────────── */
+.nexus-btn-gradient {
+  border: none;
+  background: var(--grad);
+  color: #fff;
+  box-shadow: var(--glow-purple);
+  border-radius: var(--r-sm);
+  font-weight: 600;
+  font-family: 'Manrope', sans-serif;
+  cursor: pointer;
+  transition: opacity .15s, transform .15s;
+}
+.nexus-btn-gradient:hover { opacity: .85; transform: translateY(-1px); }
+.nexus-btn-gradient:active { transform: translateY(0); }
+
+.nexus-btn-icon {
+  display: grid;
+  place-items: center;
+  border: 1px solid var(--line);
+  background: transparent;
+  color: var(--tx-2);
+  border-radius: var(--r-sm);
+  cursor: pointer;
+  transition: background .15s, color .15s;
+}
+.nexus-btn-icon:hover { background: rgba(124,108,255,.10); color: var(--tx); }
+
+.nexus-btn-ghost-subtle {
+  border: 1px solid var(--line);
+  background: transparent;
+  color: var(--tx-2);
+  border-radius: var(--r-sm);
+  font-family: 'Manrope', sans-serif;
+  cursor: pointer;
+  transition: background .15s, color .15s;
+}
+.nexus-btn-ghost-subtle:hover { background: rgba(124,108,255,.08); color: var(--tx); }
+
+.nexus-btn-danger {
+  border: 1px solid rgba(251,113,133,.3);
+  background: rgba(251,113,133,.12);
+  color: var(--st-block);
+  border-radius: var(--r-sm);
+  font-weight: 600;
+  font-family: 'Manrope', sans-serif;
+  cursor: pointer;
+  transition: background .15s;
+}
+.nexus-btn-danger:hover { background: rgba(251,113,133,.22); }

frontend/src/components/dashboard/v2/AgentDetailModal.vue

@@ -298,7 +298,7 @@ function avatarLabel() {
 
 .m-av.iris {
   background: var(--grad);
-  color: #fff;
+  color: var(--tx);
   box-shadow: var(--glow-purple);
 }
 
@@ -328,13 +328,13 @@ function avatarLabel() {
   font-weight: 600;
   border: 1px solid transparent;
 }
-.badge-blue   { background:rgba(79,124,255,.14);  color:#9db6ff;     border-color:rgba(79,124,255,.3); }
+.badge-blue   { background:rgba(79,124,255,.14);  color:var(--a-blue);   border-color:rgba(79,124,255,.3); }
-.badge-purple { background:rgba(181,87,246,.14);  color:#d7a8ff;     border-color:rgba(181,87,246,.3); }
+.badge-purple { background:rgba(181,87,246,.14);  color:var(--a-purple);  border-color:rgba(181,87,246,.3); }
-.badge-amber  { background:rgba(251,191,36,.13);  color:#fcd34d;     border-color:rgba(251,191,36,.3); }
+.badge-amber  { background:rgba(251,191,36,.13);  color:var(--st-queue);  border-color:rgba(251,191,36,.3); }
-.badge-green  { background:rgba(61,220,151,.13);  color:#7ef0bd;     border-color:rgba(61,220,151,.3); }
+.badge-green  { background:rgba(61,220,151,.13);  color:var(--st-work);   border-color:rgba(61,220,151,.3); }
-.badge-cyan   { background:rgba(52,214,245,.13);  color:#8ee9fb;     border-color:rgba(52,214,245,.3); }
+.badge-cyan   { background:rgba(52,214,245,.13);  color:var(--st-think);  border-color:rgba(52,214,245,.3); }
-.badge-rose   { background:rgba(251,113,133,.13); color:#fda4b0;     border-color:rgba(251,113,133,.3); }
+.badge-rose   { background:rgba(251,113,133,.13); color:var(--st-block);  border-color:rgba(251,113,133,.3); }
-.badge-slate  { background:rgba(150,140,255,.08); color:var(--tx-2); border-color:var(--line-2); }
+.badge-slate  { background:rgba(150,140,255,.08); color:var(--tx-2);      border-color:var(--line-2); }
 
 .m-pill {
   display: inline-flex;
@@ -428,7 +428,7 @@ function avatarLabel() {
 }
 
 .m-bar.work i {
-  background: linear-gradient(90deg, #2bb87f, #3ddc97);
+  background: linear-gradient(90deg, var(--st-work), var(--st-work));
   box-shadow: var(--glow-work);
 }
 
@@ -510,7 +510,7 @@ function avatarLabel() {
   font-family: 'JetBrains Mono', monospace;
   font-size: 12px;
   line-height: 1.7;
-  color: #9fe8fb;
+  color: var(--st-think);
   min-height: 72px;
   position: relative;
   overflow: hidden;
@@ -593,7 +593,7 @@ function avatarLabel() {
 .m-model-btn.active {
   background: var(--grad);
   border: none;
-  color: #fff;
+  color: var(--tx);
   box-shadow: var(--glow-purple);
 }
 

frontend/src/components/dashboard/v2/AgentNode.vue

@@ -157,7 +157,7 @@ defineEmits<{
 
 .nc-av.iris-av {
   background: var(--grad);
-  color: #fff;
+  color: var(--tx);
   box-shadow: var(--glow-purple);
 }
 
@@ -255,7 +255,7 @@ defineEmits<{
 }
 
 .node.is-work .nc-bar i {
-  background: linear-gradient(90deg, #2bb87f, #3ddc97);
+  background: linear-gradient(90deg, var(--st-work), var(--st-work));
 }
 
 /* ── Meta ────────────────────────────────────── */

frontend/src/components/dashboard/v2/AlertBar.vue

@@ -159,7 +159,7 @@ defineEmits<{
   border: 1px solid rgba(251,113,133,.3);
   font-size: 12.5px;
   font-weight: 600;
-  color: #fda4b0;
+  color: var(--st-block);
   cursor: pointer;
   transition: background .15s;
   font-family: 'Manrope', sans-serif;

frontend/src/components/dashboard/v2/FlowCanvas.vue

@@ -86,7 +86,7 @@ function renderEdges() {
 
   const edgeList = buildEdges(props.agents)
 
-  let defs = `<defs><linearGradient id="eg2" x1="0" y1="0" x2="1" y2="1"><stop offset="0" stop-color="#4f7cff"/><stop offset="1" stop-color="#b557f6"/></linearGradient></defs>`
+  let defs = `<defs><linearGradient id="eg2" x1="0" y1="0" x2="1" y2="1"><stop offset="0" stop-color="var(--a-blue)"/><stop offset="1" stop-color="var(--a-purple)"/></linearGradient></defs>`
   let paths = ''
   let pulses = ''
   let idCounter = 0
@@ -105,17 +105,17 @@ function renderEdges() {
     if (e.kind === 'flow' && live) {
       // Active flow: gradient stroke + animate pulse
       paths += `<path id="${pathId}" d="${d}" fill="none" stroke="url(#eg2)" stroke-width="2.2" opacity="0.85"/>`
-      paths += `<path d="${d}" fill="none" stroke="#3ddc97" stroke-width="2.2" stroke-dasharray="5 20" opacity="0.8" style="animation:dashmove 1.1s linear infinite"/>`
+      paths += `<path d="${d}" fill="none" stroke="var(--st-work)" stroke-width="2.2" stroke-dasharray="5 20" opacity="0.8" style="animation:dashmove 1.1s linear infinite"/>`
-      pulses += `<circle r="3.4" fill="#eafff6"><animateMotion dur="2s" repeatCount="indefinite" rotate="auto"><mpath href="#${pathId}"/></animateMotion></circle>`
+      pulses += `<circle r="3.4" fill="var(--st-work)"><animateMotion dur="2s" repeatCount="indefinite" rotate="auto"><mpath href="#${pathId}"/></animateMotion></circle>`
     } else if (e.kind === 'flow') {
       // Inactive flow
       paths += `<path id="${pathId}" d="${d}" fill="none" stroke="url(#eg2)" stroke-width="1.8" opacity="0.45"/>`
-      pulses += `<circle r="2.8" fill="#c9b8ff" opacity="0.7"><animateMotion dur="3s" repeatCount="indefinite"><mpath href="#${pathId}"/></animateMotion></circle>`
+      pulses += `<circle r="2.8" fill="var(--a-mid)" opacity="0.7"><animateMotion dur="3s" repeatCount="indefinite"><mpath href="#${pathId}"/></animateMotion></circle>`
     } else {
       // Orchestration (Iris → Agent)
       const targetAgent = props.agents.find(a => a.id === e.b)
       const op = targetAgent && isActive(targetAgent.status) ? 0.52 : 0.34
-      paths += `<path d="${d}" fill="none" stroke="#8b7cff" stroke-width="1.45" stroke-dasharray="2 6" opacity="${op}"/>`
+      paths += `<path d="${d}" fill="none" stroke="var(--a-mid)" stroke-width="1.45" stroke-dasharray="2 6" opacity="${op}"/>`
     }
   })
 
@@ -336,7 +336,7 @@ function handleReset() {
   border-radius: 10px;
   background: var(--grad);
   border: none;
-  color: #fff;
+  color: var(--tx);
   font-family: 'Manrope', sans-serif;
   font-size: 13px;
   font-weight: 600;

frontend/src/components/dashboard/v2/IrisChat.vue

@@ -123,7 +123,7 @@ watch(
 .iris-av :deep(svg) {
   width: 18px;
   height: 18px;
-  color: #fff;
+  color: var(--tx);
 }
 
 .iris-name {
@@ -196,7 +196,7 @@ watch(
   padding: 24px 0;
 }
 
-.chat-msg-info.error { color: #fda4b0; font-style: normal; }
+.chat-msg-info.error { color: var(--st-block); font-style: normal; }
 
 .chat-row {
   display: flex;
@@ -222,7 +222,7 @@ watch(
 
 .bubble.me {
   background: var(--grad);
-  color: #fff;
+  color: var(--tx);
   border-bottom-right-radius: 5px;
   margin-left: auto;
   box-shadow: var(--glow-purple);
@@ -313,6 +313,6 @@ watch(
 .send :deep(svg) {
   width: 17px;
   height: 17px;
-  color: #fff;
+  color: var(--tx);
 }
 </style>

frontend/src/components/dashboard/v2/TaskStrip.vue

@@ -12,7 +12,7 @@ function prioLabel(p: TaskItem['priority']): string {
 }
 
 function prioColor(p: TaskItem['priority']): string {
-  return p === 'high' ? '#fda4b0' : p === 'medium' ? '#fcd34d' : '#9db6ff'
+  return p === 'high' ? 'var(--st-block)' : p === 'medium' ? 'var(--st-queue)' : 'var(--a-blue)'
 }
 
 function dotClass(s: TaskItem['status']): string {

frontend/src/components/ui/ActivityTimeline.vue

@@ -0,0 +1,103 @@
+<script setup lang="ts">
+/**
+ * ActivityTimeline — Wiederverwendbare Aktivitäts-Feed-Komponente
+ *
+ * Standardisierte Timeline-Darstellung für Task-Aktivität,
+ * Agent-Aktivität und allgemeine Ereignis-Feeds.
+ * Verwendet ausschließlich nexus-tokens.css Variablen.
+ */
+
+export interface ActivityEntry {
+  id?: string
+  message: string
+  timestamp?: string
+  type?: string
+}
+
+withDefaults(defineProps<{
+  entries: ActivityEntry[]
+  loading?: boolean
+  emptyLabel?: string
+}>(), {
+  emptyLabel: 'Noch keine Aktivität',
+})
+
+function formatDate(date?: string | null): string {
+  if (!date) return ''
+  return new Date(date).toLocaleString('de-DE', {
+    dateStyle: 'medium',
+    timeStyle: 'short',
+  })
+}
+</script>
+
+<template>
+  <div class="activity-timeline">
+    <!-- Loading -->
+    <div v-if="loading" class="activity-empty">Lade…</div>
+
+    <!-- Empty -->
+    <div v-else-if="!entries.length" class="activity-empty">{{ emptyLabel }}</div>
+
+    <!-- Entries -->
+    <article v-for="(entry, index) in entries" :key="entry.id ?? index" class="activity-item">
+      <div class="activity-dot"></div>
+      <div class="activity-body">
+        <div class="activity-message">{{ entry.message }}</div>
+        <div v-if="entry.timestamp" class="activity-time">
+          {{ formatDate(entry.timestamp) }}
+        </div>
+      </div>
+    </article>
+  </div>
+</template>
+
+<style scoped>
+.activity-timeline {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+}
+
+.activity-empty {
+  font-size: 11px;
+  color: var(--tx-3);
+  font-style: italic;
+  padding: 8px;
+  text-align: center;
+  font-family: 'Manrope', sans-serif;
+}
+
+.activity-item {
+  display: grid;
+  grid-template-columns: 10px minmax(0, 1fr);
+  gap: 10px;
+  align-items: start;
+}
+
+.activity-dot {
+  width: 8px;
+  height: 8px;
+  border-radius: 999px;
+  margin-top: 5px;
+  background: var(--grad);
+  box-shadow: 0 0 0 4px rgba(124, 108, 255, .12);
+  flex-shrink: 0;
+}
+
+.activity-body {
+  min-width: 0;
+}
+
+.activity-message {
+  color: var(--tx);
+  font-size: 12.5px;
+  line-height: 1.45;
+}
+
+.activity-time {
+  color: var(--tx-3);
+  font-size: 10.5px;
+  margin-top: 4px;
+}
+</style>

frontend/src/components/ui/Badge.vue

@@ -1,4 +1,11 @@
 <script setup lang="ts">
+/**
+ * Badge — Nexus V2 Status- und Label-Badge
+ *
+ * Erweitert: zusätzliche nexus-token-basierte Varianten für
+ * Agenten-Rollen, Status-Pills und Prioritäten.
+ * Original shadcn-Varianten bleiben erhalten.
+ */
 import type { HTMLAttributes } from 'vue'
 import { cva, type VariantProps } from 'class-variance-authority'
 import { cn } from '@/lib/utils'
@@ -8,10 +15,25 @@ const badgeVariants = cva(
   {
     variants: {
       variant: {
+        // Original shadcn
         default: 'border-transparent bg-primary text-primary-foreground shadow hover:bg-primary/80',
         secondary: 'border-transparent bg-secondary text-secondary-foreground hover:bg-secondary/80',
         destructive: 'border-transparent bg-destructive text-destructive-foreground shadow hover:bg-destructive/80',
         outline: 'text-foreground',
+
+        // Nexus V2 — Token-basierte Varianten (Farben aus nexus-tokens.css)
+        work: 'nexus-badge-work',
+        think: 'nexus-badge-think',
+        blocked: 'nexus-badge-blocked',
+        queue: 'nexus-badge-queue',
+        done: 'nexus-badge-done',
+        review: 'nexus-badge-review',
+        iris: 'nexus-badge-iris',
+        bao: 'nexus-badge-bao',
+        agent: 'nexus-badge-agent',
+        priorityHigh: 'nexus-badge-prio-high',
+        priorityMed: 'nexus-badge-prio-med',
+        priorityLow: 'nexus-badge-prio-low',
       },
     },
     defaultVariants: {
@@ -35,3 +57,78 @@ const props = withDefaults(defineProps<Props>(), {
     <slot />
   </span>
 </template>
+
+<style scoped>
+/* Nexus V2 Token-basierte Badge-Varianten */
+.nexus-badge-work {
+  border-color: rgba(61, 220, 151, .25);
+  background: rgba(34, 197, 94, .12);
+  color: var(--st-work);
+}
+
+.nexus-badge-think {
+  border-color: rgba(52, 214, 245, .25);
+  background: rgba(52, 214, 245, .1);
+  color: var(--st-think);
+}
+
+.nexus-badge-blocked {
+  border-color: rgba(251, 113, 133, .25);
+  background: rgba(244, 63, 94, .12);
+  color: var(--st-block);
+}
+
+.nexus-badge-queue {
+  border-color: rgba(251, 191, 36, .25);
+  background: rgba(251, 191, 36, .12);
+  color: var(--st-queue);
+}
+
+.nexus-badge-done {
+  border-color: rgba(34, 197, 94, .25);
+  background: rgba(34, 197, 94, .12);
+  color: var(--st-work);
+}
+
+.nexus-badge-review {
+  border-color: rgba(249, 115, 22, .25);
+  background: rgba(249, 115, 22, .12);
+  color: var(--clr-review);
+}
+
+.nexus-badge-iris {
+  border-color: rgba(147, 51, 234, .25);
+  background: rgba(147, 51, 234, .12);
+  color: var(--clr-iris);
+}
+
+.nexus-badge-bao {
+  border-color: rgba(59, 130, 246, .25);
+  background: rgba(59, 130, 246, .12);
+  color: var(--clr-bao);
+}
+
+.nexus-badge-agent {
+  border-color: rgba(16, 185, 129, .2);
+  background: rgba(16, 185, 129, .12);
+  color: var(--clr-agent);
+}
+
+.nexus-badge-prio-high {
+  border-color: var(--st-block);
+  background: transparent;
+  color: var(--st-block);
+}
+
+.nexus-badge-prio-med {
+  border-color: var(--st-queue);
+  background: transparent;
+  color: var(--st-queue);
+}
+
+.nexus-badge-prio-low {
+  border-color: var(--a-blue);
+  background: transparent;
+  color: var(--a-blue);
+}
+</style>

frontend/src/components/ui/Card.vue

@@ -1,16 +1,54 @@
 <script setup lang="ts">
+/**
+ * Card — Nexus V2 glass-panel Karte
+ *
+ * Verwendet nexus-tokens.css als Single Source of Truth.
+ * Hintergrund-kompatibel mit shadcn-Card-Props.
+ * Wrapped content in .glass-panel styles aus tokens.css.
+ */
 import type { HTMLAttributes } from 'vue'
 import { cn } from '@/lib/utils'
 
 interface Props {
   class?: HTMLAttributes['class']
+  /** Variante: 'glass' (default) | 'raised' | 'subtle' */
+  variant?: 'glass' | 'raised' | 'subtle'
 }
 
-const props = defineProps<Props>()
+const props = withDefaults(defineProps<Props>(), {
+  variant: 'glass',
+})
 </script>
 
 <template>
-  <div :class="cn('rounded-xl border bg-card text-card-foreground shadow', props.class)">
+  <div
+    :class="cn(
+      'rounded-xl border',
+      {
+        'glass-panel': variant === 'glass',
+        'card-raised': variant === 'raised',
+        'card-subtle': variant === 'subtle',
+      },
+      props.class,
+    )"
+  >
     <slot />
   </div>
 </template>
+
+<style scoped>
+/* glass-panel ist in nexus-tokens.css definiert */
+
+.card-raised {
+  background: var(--glass-2);
+  border: 1px solid var(--line-2);
+  border-radius: var(--r);
+  backdrop-filter: blur(12px);
+}
+
+.card-subtle {
+  background: rgba(255, 255, 255, .02);
+  border: 1px solid var(--line);
+  border-radius: var(--r);
+}
+</style>

frontend/src/components/ui/EmptyState.vue

@@ -0,0 +1,106 @@
+<script setup lang="ts">
+/**
+ * EmptyState — Standardisierte Leerzustands-Anzeige
+ *
+ * Konsistente Darstellung für "keine Daten"-Zustände im Dashboard,
+ * TaskBoard und allen V2-Views.
+ * Verwendet ausschließlich nexus-tokens.css Variablen.
+ */
+
+withDefaults(defineProps<{
+  /** Icon-Klasse (optional, z.B. für SVG-Nutzung) */
+  icon?: string
+  /** Primärer Text */
+  title?: string
+  /** Sekundärer Erklärungstext */
+  description?: string
+  /** Kompakte Darstellung (inline-flex) */
+  compact?: boolean
+}>(), {
+  title: 'Keine Einträge',
+  compact: false,
+})
+</script>
+
+<template>
+  <div class="empty-state" :class="{ compact }">
+    <div v-if="icon" class="empty-icon" v-html="icon"></div>
+    <slot name="icon">
+      <div v-if="!icon" class="empty-icon-default">
+        <svg width="28" height="28" viewBox="0 0 28 28" fill="none">
+          <rect x="4" y="6" width="20" height="16" rx="3" stroke="currentColor" stroke-width="1.2" />
+          <line x1="10" y1="12" x2="18" y2="12" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" />
+          <line x1="10" y1="16" x2="15" y2="16" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" />
+        </svg>
+      </div>
+    </slot>
+    <div v-if="!compact" class="empty-title">{{ title }}</div>
+    <div v-if="description" class="empty-desc">{{ description }}</div>
+    <div v-if="$slots.action" class="empty-action">
+      <slot name="action" />
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.empty-state {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  padding: 24px 12px;
+  text-align: center;
+}
+
+.empty-state.compact {
+  flex-direction: row;
+  gap: 8px;
+  padding: 8px 12px;
+  justify-content: flex-start;
+}
+
+.empty-icon,
+.empty-icon-default {
+  color: var(--tx-3);
+  opacity: 0.5;
+  margin-bottom: 8px;
+}
+
+.compact .empty-icon,
+.compact .empty-icon-default {
+  margin-bottom: 0;
+  flex-shrink: 0;
+}
+
+.empty-icon-default {
+  display: grid;
+  place-items: center;
+}
+
+.empty-title {
+  font-size: 12px;
+  font-weight: 600;
+  color: var(--tx-2);
+  font-family: 'Manrope', sans-serif;
+}
+
+.compact .empty-title {
+  font-size: 11px;
+  font-weight: 400;
+  font-style: italic;
+  color: var(--tx-3);
+}
+
+.empty-desc {
+  margin-top: 4px;
+  font-size: 11px;
+  color: var(--tx-3);
+  font-family: 'Manrope', sans-serif;
+  max-width: 280px;
+  line-height: 1.4;
+}
+
+.empty-action {
+  margin-top: 12px;
+}
+</style>

frontend/src/components/ui/PageHeading.vue

@@ -0,0 +1,79 @@
+<script setup lang="ts">
+/**
+ * PageHeading — Standardisierter Seiten-Header für V2 Views
+ *
+ * Bietet konsistentes grad-text Styling, Eyebrow/Subtitle und Action-Slot.
+ * Verwendet ausschließlich nexus-tokens.css Variablen.
+ */
+
+withDefaults(defineProps<{
+  /** Gradient-Text Überschrift */
+  title: string
+  /** Kleiner Eyebrow-Text über der Überschrift (violett) */
+  eyebrow?: string
+  /** Subtitle unter der Überschrift */
+  subtitle?: string
+}>(), {})
+</script>
+
+<template>
+  <header class="page-heading">
+    <div>
+      <p v-if="eyebrow || $slots.eyebrow" class="eyebrow">
+        <slot name="eyebrow">{{ eyebrow }}</slot>
+      </p>
+      <h1><span class="grad-text">{{ title }}</span></h1>
+      <p v-if="subtitle" class="board-subtitle">{{ subtitle }}</p>
+      <slot name="meta" />
+    </div>
+    <div v-if="$slots.actions" class="heading-actions">
+      <slot name="actions" />
+    </div>
+  </header>
+</template>
+
+<style scoped>
+.page-heading {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 12px;
+}
+
+.page-heading h1 {
+  margin: 0;
+  font-size: 22px;
+  font-weight: 700;
+  font-family: 'Space Grotesk', sans-serif;
+  letter-spacing: -0.02em;
+}
+
+.eyebrow {
+  color: var(--a-mid);
+  font-size: 9px;
+  font-weight: 700;
+  letter-spacing: 0.18em;
+  margin: 0 0 4px 0;
+}
+
+.board-subtitle {
+  margin: 4px 0 0;
+  font-size: 11px;
+  color: var(--tx-3);
+  font-family: 'Manrope', sans-serif;
+}
+
+.grad-text {
+  background: var(--grad);
+  -webkit-background-clip: text;
+  background-clip: text;
+  color: transparent;
+}
+
+.heading-actions {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  flex-shrink: 0;
+}
+</style>

frontend/src/components/ui/SectionHeader.vue

@@ -0,0 +1,116 @@
+<script setup lang="ts">
+/**
+ * SectionHeader — Titelzeile für Sektionen/Spalten im Dashboard V2
+ *
+ * Kapselt wiederholtes Muster: dot + label + count aus TaskBoard-Spalten
+ * und Iris-Panel-Sektionen. Verwendet ausschließlich Token-Farben.
+ */
+
+withDefaults(defineProps<{
+  label: string
+  /** Status-Farbe des Dots: 'work' | 'think' | 'idle' | 'block' | 'queue' | 'review' | 'iris' | 'bao' */
+  dotColor?: 'work' | 'think' | 'idle' | 'block' | 'queue' | 'review' | 'iris' | 'bao'
+  /** Numerischer Count (rechts) */
+  count?: number
+  /** Variante: 'column' (Spalten-Header) oder 'section' (Iris-Panel) */
+  variant?: 'column' | 'section'
+}>(), {
+  variant: 'column',
+})
+
+function dotColorVar(color: string): string {
+  const map: Record<string, string> = {
+    work: 'var(--st-work)',
+    think: 'var(--st-think)',
+    idle: 'var(--st-idle)',
+    block: 'var(--st-block)',
+    queue: 'var(--st-queue)',
+    review: 'var(--st-queue)',    // orange-ähnlich
+    iris: 'var(--a-purple)',
+    bao: 'var(--a-blue)',
+  }
+  return map[color] || 'var(--st-idle)'
+}
+
+function dotRingVar(color: string): string {
+  const map: Record<string, string> = {
+    work: 'rgba(61, 220, 151, .25)',
+    think: 'rgba(52, 214, 245, .25)',
+    idle: 'rgba(107, 103, 150, .25)',
+    block: 'rgba(251, 113, 133, .25)',
+    queue: 'rgba(251, 191, 36, .25)',
+    review: 'rgba(251, 146, 60, .25)',
+    iris: 'rgba(181, 87, 246, .25)',
+    bao: 'rgba(79, 124, 255, .25)',
+  }
+  return map[color] || 'rgba(107, 103, 150, .25)'
+}
+</script>
+
+<template>
+  <div class="section-header" :class="variant">
+    <span
+      class="section-dot"
+      :style="{
+        background: dotColorVar(dotColor || 'idle'),
+        boxShadow: `0 0 0 2px ${dotRingVar(dotColor || 'idle')}`,
+      }"
+    ></span>
+    <span class="section-label">{{ label }}</span>
+    <span v-if="count !== undefined" class="section-count">{{ count }}</span>
+    <slot />
+  </div>
+</template>
+
+<style scoped>
+.section-header {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.section-header.column {
+  margin-bottom: 10px;
+  padding-bottom: 10px;
+  border-bottom: 1px solid var(--line);
+}
+
+.section-header.section {
+  margin-bottom: 10px;
+  padding-bottom: 8px;
+  border-bottom: 1px solid var(--line);
+}
+
+.section-dot {
+  width: 9px;
+  height: 9px;
+  border-radius: 50%;
+  flex: 0 0 auto;
+}
+
+.section-label {
+  font-size: 11px;
+  font-weight: 700;
+  text-transform: uppercase;
+  letter-spacing: .06em;
+  color: var(--tx-2);
+  font-family: 'Space Grotesk', sans-serif;
+}
+
+.section-header.section .section-label {
+  font-size: 11px;
+}
+
+.section-count {
+  margin-left: auto;
+  font-family: 'JetBrains Mono', monospace;
+  font-size: 10px;
+  font-weight: 700;
+  font-variant-numeric: tabular-nums;
+  padding: 2px 8px;
+  border-radius: 10px;
+  background: var(--glass-2);
+  color: var(--tx-2);
+  border: 1px solid var(--line);
+}
+</style>

frontend/src/components/ui/StatusDot.vue

@@ -0,0 +1,72 @@
+<script setup lang="ts">
+/**
+ * StatusDot — Nexus V2 animierter Status-Indikator
+ *
+ * Kapselt die pulse-keyframes aus nexus-tokens.css.
+ * Status-Farben und Pulse-Animationen stammen ausschließlich aus Tokens.
+ *
+ * Props:
+ *   status  – 'work' | 'think' | 'idle' | 'block' | 'queue'
+ *   size    – 'sm' (8px) | 'md' (9px) | 'lg' (12px), default 'md'
+ *   pulse   – Animation aktiv (default: true für work/think/block)
+ *   label   – Text-Label rechts neben dem Dot (optional)
+ */
+
+withDefaults(defineProps<{
+  status: 'work' | 'think' | 'idle' | 'block' | 'queue'
+  size?: 'sm' | 'md' | 'lg'
+  pulse?: boolean
+  label?: string
+}>(), {
+  size: 'md',
+})
+</script>
+
+<template>
+  <span class="status-dot-wrapper">
+    <span
+      class="dot"
+      :class="[status, size, { pulse: pulse !== false }]"
+      :aria-label="label || status"
+      role="status"
+    ></span>
+    <span v-if="label" class="dot-label">{{ label }}</span>
+  </span>
+</template>
+
+<style scoped>
+.status-dot-wrapper {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.dot {
+  display: inline-block;
+  border-radius: 50%;
+  flex: 0 0 auto;
+}
+
+.dot.sm { width: 7px; height: 7px; }
+.dot.md { width: 9px; height: 9px; }
+.dot.lg { width: 12px; height: 12px; }
+
+/* Farben aus nexus-tokens.css — Single Source of Truth */
+.dot.work  { background: var(--st-work);  }
+.dot.think { background: var(--st-think); }
+.dot.idle  { background: var(--st-idle);  }
+.dot.block { background: var(--st-block); }
+.dot.queue { background: var(--st-queue); }
+
+/* Pulse-Animationen (Keyframes in tokens.css definiert) */
+.dot.work.pulse  { animation: pulse-work  1.8s infinite; box-shadow: 0 0 0 0 rgba(61,220,151,.55); }
+.dot.think.pulse { animation: pulse-think 1.8s infinite; box-shadow: 0 0 0 0 rgba(52,214,245,.55); }
+.dot.block.pulse { animation: pulse-block 1.4s infinite; box-shadow: 0 0 0 0 rgba(251,113,133,.55); }
+
+.dot-label {
+  font-size: 12.5px;
+  font-weight: 600;
+  color: var(--tx-2);
+  white-space: nowrap;
+}
+</style>

frontend/src/components/ui/ToastContainer.vue

@@ -7,18 +7,18 @@ const { toasts, remove } = useToast()
 const typeConfig: Record<string, { icon: any; color: string; bg: string }> = {
   success: {
     icon: CheckCircle,
-    color: '#22c55e',
+    color: 'var(--st-work)',
-    bg: 'rgba(34, 197, 94, 0.10)',
+    bg: 'rgba(61, 220, 151, 0.10)',
   },
   error: {
     icon: XCircle,
-    color: '#ef4444',
+    color: 'var(--st-block)',
-    bg: 'rgba(239, 68, 68, 0.10)',
+    bg: 'rgba(251, 113, 133, 0.10)',
   },
   info: {
     icon: Info,
-    color: '#3b82f6',
+    color: 'var(--a-blue)',
-    bg: 'rgba(59, 130, 246, 0.10)',
+    bg: 'rgba(79, 124, 255, 0.10)',
   },
 }
 </script>
@@ -76,7 +76,7 @@ const typeConfig: Record<string, { icon: any; color: string; bg: string }> = {
     0 8px 32px rgba(0, 0, 0, 0.4),
     inset 0 1px 0 color-mix(in srgb, var(--toast-color) 12%, transparent);
   pointer-events: auto;
-  color: #e8eaf0;
+  color: var(--tx);
   font-size: 12.5px;
   line-height: 1.4;
 }
@@ -106,7 +106,7 @@ const typeConfig: Record<string, { icon: any; color: string; bg: string }> = {
   border: none;
   border-radius: 6px;
   background: transparent;
-  color: #6b7385;
+  color: var(--tx-3);
   cursor: pointer;
   opacity: 0.5;
   transition: all 0.15s;
@@ -114,7 +114,7 @@ const typeConfig: Record<string, { icon: any; color: string; bg: string }> = {
 .toast-close:hover {
   opacity: 1;
   background: rgba(255, 255, 255, 0.06);
-  color: #e8eaf0;
+  color: var(--tx);
 }
 
 /* Transition animations */

frontend/src/components/ui/button/index.ts

@@ -4,25 +4,35 @@ import { type VariantProps, cva } from 'class-variance-authority'
 export { default as Button } from './Button.vue'
 
 export const buttonVariants = cva(
-  'inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-colors focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0',
+  'inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-all focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0',
   {
     variants: {
       variant: {
+        // shadcn-original
         default: 'bg-primary text-primary-foreground shadow hover:bg-primary/90',
-        destructive:
+        destructive: 'bg-destructive text-destructive-foreground shadow-sm hover:bg-destructive/90',
-          'bg-destructive text-destructive-foreground shadow-sm hover:bg-destructive/90',
+        outline: 'border border-input bg-background shadow-sm hover:bg-accent hover:text-accent-foreground',
-        outline:
+        secondary: 'bg-secondary text-secondary-foreground shadow-sm hover:bg-secondary/80',
-          'border border-input bg-background shadow-sm hover:bg-accent hover:text-accent-foreground',
-        secondary:
-          'bg-secondary text-secondary-foreground shadow-sm hover:bg-secondary/80',
         ghost: 'hover:bg-accent hover:text-accent-foreground',
         link: 'text-primary underline-offset-4 hover:underline',
+
+        // Nexus V2 — Token-basierte Varianten
+        /** CTA / primäre Aktion — Gradient */
+        gradient: 'nexus-btn-gradient',
+        /** Icon-Only — quadratischer Button ohne Text */
+        icon: 'nexus-btn-icon',
+        /** Ghost thin — minimal hover */
+        ghostSubtle: 'nexus-btn-ghost-subtle',
+        /** Danger/Blocker — rote Akzent-Aktion */
+        danger: 'nexus-btn-danger',
       },
       size: {
         default: 'h-9 px-4 py-2',
         sm: 'h-8 rounded-md px-3 text-xs',
         lg: 'h-10 rounded-md px-8',
         icon: 'h-9 w-9',
+        iconSm: 'h-7 w-7 rounded-md',
+        pill: 'h-7 px-4 rounded-full text-xs',
       },
     },
     defaultVariants: {

frontend/src/components/ui/index.ts

@@ -0,0 +1,13 @@
+export { default as Badge } from './Badge.vue'
+export { default as Card } from './Card.vue'
+export { default as StatusDot } from './StatusDot.vue'
+export { default as PageHeading } from './PageHeading.vue'
+export { default as EmptyState } from './EmptyState.vue'
+export { default as ActivityTimeline } from './ActivityTimeline.vue'
+export { default as SectionHeader } from './SectionHeader.vue'
+export { default as Input } from './Input.vue'
+export { default as Textarea } from './Textarea.vue'
+export { default as Select } from './Select.vue'
+export { default as Dialog } from './Dialog.vue'
+export { default as ToastContainer } from './ToastContainer.vue'
+export { Button } from './button'