feat: add new session FAB button to terminal stack, always show FABs

- Add "+" FAB in TerminalFabStack with create-session emit
- Expose handleCreateSession from FloatingTranscriptDebug
- Remove !showTranscriptDebug condition so FABs stay visible when panel is open
- Wire handleFabCreateSession in App.vue to open panel + show modal

frontend/src/App.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref, onMounted, onUnmounted, watch } from 'vue'
+import { ref, computed, onMounted, onUnmounted, watch, nextTick } from 'vue'
 import { RouterView, useRoute, useRouter } from 'vue-router'
 import Toolbar from './components/Toolbar.vue'
 import TorchButton from './components/TorchButton.vue'
@@ -7,16 +7,19 @@ import FloatingResponse from './components/FloatingResponse.vue'
 import { initWhisperSocket } from './services/whisperSocket'
 import FloatingVoice from './components/FloatingVoice.vue'
 import FloatingTranscriptDebug from './components/FloatingTranscriptDebug.vue'
+import TerminalFabStack from './components/transcript-debug/TerminalFabStack.vue'
 import PwaInstallBanner from './components/PwaInstallBanner.vue'
 import HooksApprovalModal from './components/HooksApprovalModal.vue'
 import { useGlobalApproval } from './composables/useGlobalApproval'
 import { initWebMCP, getWebMCP } from './services/webmcp'
 import { initTorch, destroyTorch } from './services/torch'
+import { initSessionStateWS, destroySessionStateWS } from './services/session-state-ws'
 import { endpoints } from './config/endpoints'
 import { initToolRegistry, activatePageTools, initToolsOnRefresh } from './services/toolRegistry'
 import { setResponseControls } from './services/tools/handlers/responseHandlers'
 import { useCanvasStore } from './stores/canvas'
 import { useProjectCanvasStore } from './stores/projectCanvas'
+import { useSessionState } from './stores/session-state'
 
 const route = useRoute()
 const router = useRouter()
@@ -70,6 +73,7 @@ const transcriptDebugRef = ref<InstanceType<typeof FloatingTranscriptDebug> | nu
 const mousePos = ref({ x: 0, y: 0 })
 const canvasStore = useCanvasStore()
 const projectCanvasStore = useProjectCanvasStore()
+const sessionState = useSessionState()
 const { totalPending, modalVisible, connect: connectApproval, disconnect: disconnectApproval, fetchPending: fetchApprovalPending } = useGlobalApproval()
 // Voice FAB push-to-talk state
 const voicePTTActive = ref(false)
@@ -78,6 +82,22 @@ let voicePTTTimeout: number | null = null
 
 const keyboardVisible = ref(false)    // Virtual keyboard visible
 
+// Extra terminals (T2-T5) from Pinia store — fully reactive, no template ref dependency
+const extraTerminals = computed(() => {
+  const reg = sessionState.terminalRegistry
+  if (reg.length <= 1) return []
+  return reg.slice(1).map(entry => ({
+    sessionId: entry.transcriptSessionId,
+    ephemeralSessionId: entry.ephemeralSessionId,
+    agent: entry.agent,
+    label: entry.label,
+    command: entry.command,
+    active: entry.transcriptSessionId === transcriptDebugRef.value?.activeTerminalSessionId,
+    alive: entry.alive,
+    clients: entry.clients
+  }))
+})
+
 function hardRefresh() {
   location.reload()
 }
@@ -86,6 +106,27 @@ function trackMouse(e: MouseEvent) {
   mousePos.value = { x: e.clientX, y: e.clientY }
 }
 
+function handleFabTerminalSelect(sessionId: string) {
+  if (transcriptDebugRef.value) {
+    transcriptDebugRef.value.switchToTerminal(sessionId)
+  }
+  showTranscriptDebug.value = true
+}
+
+function handleFabCreateSession() {
+  showTranscriptDebug.value = true
+  nextTick(() => {
+    transcriptDebugRef.value?.handleCreateSession()
+  })
+}
+
+function handleMainFabClick() {
+  if (transcriptDebugRef.value?.openTerminals?.length) {
+    transcriptDebugRef.value.switchToTerminal(transcriptDebugRef.value.openTerminals[0].sessionId)
+  }
+  showTranscriptDebug.value = !showTranscriptDebug.value
+}
+
 function handleGlobalKeydown(e: KeyboardEvent) {
   if (e.ctrlKey && e.key === 'e') {
     e.preventDefault()
@@ -153,6 +194,9 @@ onMounted(async () => {
   connectApproval()
   fetchApprovalPending()
 
+  // Connect centralized session state WS
+  initSessionStateWS()
+
   // Initialize Whisper WebSocket connection early
   initWhisperSocket()
 
@@ -213,6 +257,7 @@ onUnmounted(() => {
   document.removeEventListener('keydown', handleGlobalKeydown)
   destroyTorch()
   disconnectApproval()
+  destroySessionStateWS()
 })
 
 // Watch for route changes and update tools
@@ -289,30 +334,38 @@ watch(() => route.name, (newPage) => {
 
     <!-- Transcript Debug FAB Button (pixel art ocean) -->
     <div class="transcript-fab-wrap" :class="{ 'sheet-open': showVoice || showTranscriptDebug, 'keyboard-visible': keyboardVisible }" @contextmenu.prevent>
-      <span class="fab-bubble b1"></span>
+      <TerminalFabStack
-      <span class="fab-bubble b2"></span>
+        :terminals="extraTerminals"
-      <span class="fab-bubble b3"></span>
+        :active-session-id="transcriptDebugRef?.activeTerminalSessionId ?? null"
-      <button
+        @select="handleFabTerminalSelect"
-        class="transcript-fab"
+        @create-session="handleFabCreateSession"
-        :class="{ active: showTranscriptDebug }"
+      />
-        @click="showTranscriptDebug = !showTranscriptDebug"
+      <div class="fab-button-area">
-        @contextmenu.prevent
+        <span class="fab-bubble b1"></span>
-        title="Transcript Debug"
+        <span class="fab-bubble b2"></span>
-      >
+        <span class="fab-bubble b3"></span>
-        <!-- Pixel art chat bubble icon -->
+        <button
-        <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20" shape-rendering="crispEdges">
+          class="transcript-fab"
-          <rect x="4" y="2" width="12" height="2" fill="currentColor"/>
+          :class="{ active: showTranscriptDebug }"
-          <rect x="2" y="4" width="2" height="8" fill="currentColor"/>
+          @click="handleMainFabClick"
-          <rect x="16" y="4" width="2" height="8" fill="currentColor"/>
+          @contextmenu.prevent
-          <rect x="4" y="12" width="12" height="2" fill="currentColor"/>
+          title="Transcript Debug"
-          <rect x="4" y="14" width="2" height="2" fill="currentColor"/>
+        >
-          <rect x="2" y="16" width="2" height="2" fill="currentColor"/>
+          <!-- Pixel art chat bubble icon -->
-          <!-- Dots inside -->
+          <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20" shape-rendering="crispEdges">
-          <rect x="6" y="7" width="2" height="2" fill="currentColor" opacity="0.5"/>
+            <rect x="4" y="2" width="12" height="2" fill="currentColor"/>
-          <rect x="9" y="7" width="2" height="2" fill="currentColor" opacity="0.5"/>
+            <rect x="2" y="4" width="2" height="8" fill="currentColor"/>
-          <rect x="12" y="7" width="2" height="2" fill="currentColor" opacity="0.5"/>
+            <rect x="16" y="4" width="2" height="8" fill="currentColor"/>
-        </svg>
+            <rect x="4" y="12" width="12" height="2" fill="currentColor"/>
-      </button>
+            <rect x="4" y="14" width="2" height="2" fill="currentColor"/>
+            <rect x="2" y="16" width="2" height="2" fill="currentColor"/>
+            <!-- Dots inside -->
+            <rect x="6" y="7" width="2" height="2" fill="currentColor" opacity="0.5"/>
+            <rect x="9" y="7" width="2" height="2" fill="currentColor" opacity="0.5"/>
+            <rect x="12" y="7" width="2" height="2" fill="currentColor" opacity="0.5"/>
+          </svg>
+        </button>
+      </div>
     </div>
 
     <!-- Voice FAB Button -->
@@ -738,18 +791,20 @@ watch(() => route.name, (newPage) => {
   50% { box-shadow: 0 0 50px rgba(249, 115, 22, 0.9); }
 }
 
-/* Transcript Debug FAB wrapper — holds button + bubbles */
+/* Transcript Debug FAB wrapper — holds button + terminal stack */
 .transcript-fab-wrap {
   position: fixed;
   bottom: 20px;
   right: 20px;
-  width: 44px;
+  z-index: 10000;
-  height: 44px;
-  z-index: 9998;
   pointer-events: none;
   -webkit-user-select: none;
   user-select: none;
   -webkit-touch-callout: none;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 6px;
 }
 
 /* Transcript Debug FAB — pixel art night ocean, elevated */
@@ -812,6 +867,12 @@ watch(() => route.name, (newPage) => {
   color: #a5f3fc;
 }
 
+.fab-button-area {
+  position: relative;
+  width: 44px;
+  height: 44px;
+}
+
 /* Bubble particles — very occasional */
 .fab-bubble {
   position: absolute;
@@ -881,6 +942,9 @@ watch(() => route.name, (newPage) => {
   .transcript-fab-wrap {
     bottom: 80px;
     right: 16px;
+  }
+
+  .transcript-fab-wrap .fab-button-area {
     width: 40px;
     height: 40px;
   }

frontend/src/components/FloatingTranscriptDebug.vue

@@ -435,7 +435,7 @@ function openAtCursor(x: number, y: number) {
   })
 }
 
-defineExpose({ openAtCursor, openTerminals, activeTerminalSessionId, switchToTerminal })
+defineExpose({ openAtCursor, openTerminals, activeTerminalSessionId, switchToTerminal, handleCreateSession })
 
 function handleAgentSwitch(agent: AgentName) {
   switchAgent(agent)

frontend/src/components/transcript-debug/TerminalFabStack.vue

@@ -0,0 +1,178 @@
+<script setup lang="ts">
+import type { TerminalSlot } from '@/types/transcript-debug'
+
+defineProps<{
+  terminals: TerminalSlot[]
+  activeSessionId: string | null
+}>()
+
+const emit = defineEmits<{
+  select: [sessionId: string]
+  'create-session': []
+}>()
+
+function stateColor(t: TerminalSlot): string {
+  if (!t.alive) return '#ef4444'
+  if (t.clients > 0) return '#22c55e'
+  return '#f59e0b'
+}
+
+// Pixel art SVG backgrounds for terminals 2-5
+const artVariants = [
+  // T2: Coral reef — orange/pink corals, warm deep water
+  `url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='44' height='44' viewBox='0 0 44 44' shape-rendering='crispEdges'%3E%3Crect width='44' height='6' fill='%230c1a2e'/%3E%3Crect y='6' width='44' height='4' fill='%230e2040'/%3E%3Crect y='10' width='44' height='4' fill='%23122848'/%3E%3Crect y='14' width='44' height='4' fill='%23152e50'/%3E%3Crect y='18' width='44' height='4' fill='%23183458'/%3E%3Crect y='22' width='44' height='4' fill='%231a3860'/%3E%3Crect y='26' width='44' height='4' fill='%231c3c68'/%3E%3Crect y='30' width='44' height='4' fill='%231e3e6a'/%3E%3Crect y='34' width='44' height='10' fill='%232a1e10'/%3E%3Crect y='38' width='44' height='6' fill='%23342414'/%3E%3Crect x='6' y='26' width='3' height='8' fill='%23e85d2a' opacity='0.8'/%3E%3Crect x='5' y='24' width='2' height='3' fill='%23f07030' opacity='0.7'/%3E%3Crect x='8' y='23' width='2' height='4' fill='%23f07030' opacity='0.65'/%3E%3Crect x='4' y='22' width='1' height='3' fill='%23ff8844' opacity='0.5'/%3E%3Crect x='10' y='25' width='1' height='2' fill='%23ff8844' opacity='0.45'/%3E%3Crect x='18' y='28' width='4' height='6' fill='%23d4467a' opacity='0.8'/%3E%3Crect x='17' y='26' width='2' height='3' fill='%23e0558a' opacity='0.65'/%3E%3Crect x='21' y='25' width='2' height='4' fill='%23e0558a' opacity='0.6'/%3E%3Crect x='19' y='24' width='1' height='3' fill='%23f06898' opacity='0.45'/%3E%3Crect x='30' y='27' width='3' height='7' fill='%23c83030' opacity='0.75'/%3E%3Crect x='29' y='25' width='2' height='3' fill='%23d84040' opacity='0.6'/%3E%3Crect x='32' y='24' width='2' height='4' fill='%23d84040' opacity='0.55'/%3E%3Crect x='34' y='26' width='1' height='2' fill='%23e85050' opacity='0.45'/%3E%3Crect x='38' y='30' width='2' height='4' fill='%23e8752a' opacity='0.5'/%3E%3Crect x='37' y='28' width='1' height='3' fill='%23f08838' opacity='0.4'/%3E%3Crect x='12' y='16' width='1' height='1' fill='%2388ccff' opacity='0.3'/%3E%3Crect x='25' y='12' width='1' height='1' fill='%2388ccff' opacity='0.25'/%3E%3Crect x='36' y='8' width='1' height='1' fill='%2388ccff' opacity='0.2'/%3E%3Crect x='14' y='14' width='3' height='1' fill='%23ffaa44' opacity='0.4'/%3E%3Crect x='13' y='15' width='1' height='1' fill='%23ffaa44' opacity='0.3'/%3E%3Crect x='8' y='36' width='2' height='1' fill='%234a3820' opacity='0.4'/%3E%3Crect x='24' y='38' width='3' height='1' fill='%234a3820' opacity='0.3'/%3E%3Crect x='15' y='40' width='2' height='1' fill='%23c8a860' opacity='0.15'/%3E%3Crect x='36' y='41' width='2' height='1' fill='%23c8a860' opacity='0.12'/%3E%3C/svg%3E")`,
+
+  // T3: Deep sea — very dark, bioluminescent green/cyan dots
+  `url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='44' height='44' viewBox='0 0 44 44' shape-rendering='crispEdges'%3E%3Crect width='44' height='44' fill='%23020810'/%3E%3Crect y='4' width='44' height='4' fill='%23030a14'/%3E%3Crect y='8' width='44' height='4' fill='%23040c18'/%3E%3Crect y='12' width='44' height='4' fill='%23050e1c'/%3E%3Crect y='16' width='44' height='4' fill='%23061020'/%3E%3Crect y='20' width='44' height='4' fill='%23051018'/%3E%3Crect y='24' width='44' height='4' fill='%23040e16'/%3E%3Crect y='28' width='44' height='4' fill='%23030c14'/%3E%3Crect y='32' width='44' height='4' fill='%23030a12'/%3E%3Crect y='36' width='44' height='8' fill='%23020810'/%3E%3Crect x='8' y='10' width='2' height='2' fill='%2300ffaa' opacity='0.5'/%3E%3Crect x='7' y='9' width='1' height='1' fill='%2300ffaa' opacity='0.2'/%3E%3Crect x='10' y='11' width='1' height='1' fill='%2300ffaa' opacity='0.15'/%3E%3Crect x='28' y='6' width='2' height='2' fill='%2300e4ff' opacity='0.45'/%3E%3Crect x='27' y='5' width='1' height='1' fill='%2300e4ff' opacity='0.15'/%3E%3Crect x='30' y='7' width='1' height='1' fill='%2300e4ff' opacity='0.12'/%3E%3Crect x='16' y='20' width='2' height='2' fill='%2340ff90' opacity='0.4'/%3E%3Crect x='15' y='19' width='1' height='1' fill='%2340ff90' opacity='0.15'/%3E%3Crect x='36' y='16' width='2' height='2' fill='%2300ffcc' opacity='0.35'/%3E%3Crect x='35' y='15' width='1' height='1' fill='%2300ffcc' opacity='0.12'/%3E%3Crect x='4' y='28' width='2' height='2' fill='%2300e4ff' opacity='0.3'/%3E%3Crect x='22' y='32' width='2' height='2' fill='%2340ff90' opacity='0.35'/%3E%3Crect x='38' y='26' width='2' height='2' fill='%2300ffaa' opacity='0.3'/%3E%3Crect x='12' y='36' width='1' height='1' fill='%2300e4ff' opacity='0.2'/%3E%3Crect x='32' y='38' width='1' height='1' fill='%2340ff90' opacity='0.2'/%3E%3Crect x='20' y='14' width='1' height='1' fill='%2300ffcc' opacity='0.15'/%3E%3Crect x='40' y='34' width='1' height='1' fill='%2300ffaa' opacity='0.15'/%3E%3Crect x='2' y='18' width='1' height='1' fill='%2340ff90' opacity='0.12'/%3E%3Crect x='18' y='38' width='6' height='3' fill='%23081828' opacity='0.5'/%3E%3Crect x='19' y='36' width='3' height='2' fill='%230a1c30' opacity='0.4'/%3E%3Crect x='6' y='40' width='4' height='2' fill='%23081828' opacity='0.4'/%3E%3Crect x='34' y='40' width='5' height='2' fill='%23081828' opacity='0.35'/%3E%3C/svg%3E")`,
+
+  // T4: Tropical lagoon — turquoise water, golden sand
+  `url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='44' height='44' viewBox='0 0 44 44' shape-rendering='crispEdges'%3E%3Crect width='44' height='6' fill='%23104858'/%3E%3Crect y='6' width='44' height='4' fill='%23148898'/%3E%3Crect y='10' width='44' height='4' fill='%231898a8'/%3E%3Crect y='14' width='44' height='4' fill='%231ca8b8'/%3E%3Crect y='18' width='44' height='4' fill='%2320b8c8'/%3E%3Crect y='22' width='44' height='4' fill='%2318a0b0'/%3E%3Crect y='26' width='44' height='4' fill='%231490a0'/%3E%3Crect y='30' width='44' height='4' fill='%23108090'/%3E%3Crect y='34' width='44' height='4' fill='%23c8a850'/%3E%3Crect y='38' width='44' height='6' fill='%23d4b460'/%3E%3Crect x='2' y='2' width='1' height='1' fill='%23e0f0ff' opacity='0.4'/%3E%3Crect x='12' y='3' width='1' height='1' fill='%23e0f0ff' opacity='0.3'/%3E%3Crect x='30' y='1' width='1' height='1' fill='%23e0f0ff' opacity='0.35'/%3E%3Crect x='4' y='8' width='6' height='2' fill='%2340d8e8' opacity='0.25'/%3E%3Crect x='16' y='9' width='8' height='2' fill='%2340d8e8' opacity='0.2'/%3E%3Crect x='30' y='8' width='6' height='2' fill='%2340d8e8' opacity='0.25'/%3E%3Crect x='8' y='16' width='4' height='1' fill='%23e0f8ff' opacity='0.15'/%3E%3Crect x='24' y='18' width='5' height='1' fill='%23e0f8ff' opacity='0.12'/%3E%3Crect x='6' y='24' width='3' height='1' fill='%23e0f8ff' opacity='0.1'/%3E%3Crect x='14' y='28' width='2' height='2' fill='%2388ddaa' opacity='0.25'/%3E%3Crect x='32' y='26' width='3' height='2' fill='%2388ddaa' opacity='0.2'/%3E%3Crect x='22' y='22' width='2' height='1' fill='%23ffcc44' opacity='0.2'/%3E%3Crect x='10' y='36' width='2' height='1' fill='%23b89840' opacity='0.4'/%3E%3Crect x='26' y='38' width='3' height='1' fill='%23b89840' opacity='0.35'/%3E%3Crect x='18' y='40' width='2' height='1' fill='%23e0c870' opacity='0.3'/%3E%3Crect x='36' y='36' width='2' height='1' fill='%23b89840' opacity='0.3'/%3E%3Crect x='4' y='34' width='3' height='2' fill='%2388ddaa' opacity='0.15'/%3E%3Crect x='38' y='34' width='2' height='2' fill='%2390cc88' opacity='0.12'/%3E%3Crect x='6' y='42' width='1' height='1' fill='%23e8d088' opacity='0.2'/%3E%3Crect x='34' y='42' width='1' height='1' fill='%23e8d088' opacity='0.18'/%3E%3C/svg%3E")`,
+
+  // T5: Arctic — ice blue, white icebergs
+  `url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='44' height='44' viewBox='0 0 44 44' shape-rendering='crispEdges'%3E%3Crect width='44' height='6' fill='%230a1828'/%3E%3Crect y='6' width='44' height='4' fill='%23102030'/%3E%3Crect y='10' width='44' height='4' fill='%23142838'/%3E%3Crect y='14' width='44' height='4' fill='%23183040'/%3E%3Crect y='18' width='44' height='4' fill='%231c3848'/%3E%3Crect y='22' width='44' height='4' fill='%23203e50'/%3E%3Crect y='26' width='44' height='4' fill='%23244458'/%3E%3Crect y='30' width='44' height='4' fill='%23284a60'/%3E%3Crect y='34' width='44' height='4' fill='%232c5068'/%3E%3Crect y='38' width='44' height='6' fill='%23182838'/%3E%3Crect x='4' y='12' width='8' height='6' fill='%23d0e8f4' opacity='0.8'/%3E%3Crect x='5' y='10' width='6' height='2' fill='%23e0f0ff' opacity='0.7'/%3E%3Crect x='6' y='8' width='4' height='2' fill='%23eef6ff' opacity='0.6'/%3E%3Crect x='4' y='18' width='8' height='2' fill='%23a0c8e0' opacity='0.4'/%3E%3Crect x='28' y='16' width='10' height='6' fill='%23d0e8f4' opacity='0.75'/%3E%3Crect x='29' y='14' width='8' height='2' fill='%23e0f0ff' opacity='0.65'/%3E%3Crect x='30' y='12' width='6' height='2' fill='%23eef6ff' opacity='0.55'/%3E%3Crect x='28' y='22' width='10' height='2' fill='%23a0c8e0' opacity='0.35'/%3E%3Crect x='16' y='24' width='6' height='4' fill='%23c8e0f0' opacity='0.5'/%3E%3Crect x='17' y='22' width='4' height='2' fill='%23d8ecf8' opacity='0.45'/%3E%3Crect x='16' y='28' width='6' height='1' fill='%2390b8d0' opacity='0.3'/%3E%3Crect x='8' y='2' width='1' height='1' fill='%23e0f0ff' opacity='0.5'/%3E%3Crect x='20' y='4' width='1' height='1' fill='%23e0f0ff' opacity='0.4'/%3E%3Crect x='36' y='2' width='1' height='1' fill='%23e0f0ff' opacity='0.45'/%3E%3Crect x='14' y='6' width='1' height='1' fill='%23e0f0ff' opacity='0.3'/%3E%3Crect x='24' y='8' width='1' height='1' fill='%23e0f0ff' opacity='0.25'/%3E%3Crect x='40' y='6' width='1' height='1' fill='%23e0f0ff' opacity='0.35'/%3E%3Crect x='2' y='36' width='1' height='1' fill='%2380a8c0' opacity='0.2'/%3E%3Crect x='22' y='38' width='1' height='1' fill='%2380a8c0' opacity='0.15'/%3E%3Crect x='38' y='36' width='1' height='1' fill='%2380a8c0' opacity='0.18'/%3E%3Crect x='10' y='40' width='1' height='1' fill='%2380a8c0' opacity='0.12'/%3E%3C/svg%3E")`,
+]
+</script>
+
+<template>
+  <TransitionGroup name="fab-stack" tag="div" class="terminal-fab-stack">
+    <button
+      v-for="(t, idx) in terminals"
+      :key="t.sessionId"
+      class="terminal-fab"
+      :class="{ active: t.sessionId === activeSessionId }"
+      :style="{ backgroundImage: artVariants[idx] || artVariants[0], transitionDelay: `${idx * 30}ms` }"
+      :title="t.label || t.sessionId.slice(0, 8)"
+      @click="emit('select', t.sessionId)"
+    >
+      <span class="fab-number">{{ idx + 2 }}</span>
+      <span class="fab-dot" :style="{ background: stateColor(t) }" />
+    </button>
+    <!-- New session "+" button — last in DOM = top in column-reverse -->
+    <button
+      key="__new__"
+      class="terminal-fab new-session-fab"
+      title="New session"
+      @click="emit('create-session')"
+    >
+      <svg class="plus-icon" width="18" height="18" viewBox="0 0 18 18" shape-rendering="crispEdges">
+        <rect x="8" y="2" width="2" height="14" fill="currentColor"/>
+        <rect x="2" y="8" width="14" height="2" fill="currentColor"/>
+      </svg>
+    </button>
+  </TransitionGroup>
+</template>
+
+<style scoped>
+.terminal-fab-stack {
+  display: flex;
+  flex-direction: column-reverse;
+  gap: 6px;
+  align-items: center;
+}
+
+.terminal-fab {
+  position: relative;
+  width: 44px;
+  height: 44px;
+  border: 1px solid rgba(14, 165, 233, 0.15);
+  border-radius: 0;
+  cursor: pointer;
+  display: flex;
+  align-items: flex-end;
+  justify-content: flex-start;
+  padding: 3px 4px;
+  transition: all 0.2s ease;
+  image-rendering: pixelated;
+  pointer-events: auto;
+  background-size: cover;
+  background-repeat: no-repeat;
+}
+
+.terminal-fab:hover {
+  transform: translateY(-2px);
+  border-color: rgba(14, 165, 233, 0.35);
+  box-shadow:
+    0 4px 8px rgba(0, 0, 0, 0.5),
+    0 10px 24px rgba(0, 0, 0, 0.6),
+    0 0 14px rgba(14, 165, 233, 0.15),
+    inset 0 1px 0 rgba(14, 165, 233, 0.2);
+}
+
+.terminal-fab:active {
+  transform: scale(0.95);
+}
+
+.terminal-fab.active {
+  border-color: rgba(34, 211, 238, 0.4);
+  box-shadow:
+    0 0 6px rgba(34, 211, 238, 0.15),
+    inset 0 0 4px rgba(34, 211, 238, 0.08);
+}
+
+.fab-number {
+  font-size: 10px;
+  font-weight: 700;
+  font-family: 'Courier New', monospace;
+  color: rgba(255, 255, 255, 0.55);
+  line-height: 1;
+  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
+}
+
+.terminal-fab:hover .fab-number {
+  color: rgba(255, 255, 255, 0.8);
+}
+
+.terminal-fab.active .fab-number {
+  color: #67e8f9;
+}
+
+.new-session-fab {
+  background: rgba(14, 165, 233, 0.08) !important;
+  align-items: center !important;
+  justify-content: center !important;
+  padding: 0 !important;
+  color: rgba(103, 232, 249, 0.5);
+}
+
+.new-session-fab:hover {
+  color: rgba(103, 232, 249, 0.9);
+  background: rgba(14, 165, 233, 0.18) !important;
+}
+
+.plus-icon {
+  filter: drop-shadow(0 0 3px rgba(103, 232, 249, 0.3));
+}
+
+.fab-dot {
+  position: absolute;
+  top: 3px;
+  right: 3px;
+  width: 5px;
+  height: 5px;
+  border-radius: 0;
+  box-shadow: 0 0 4px currentColor;
+}
+
+/* TransitionGroup animations */
+.fab-stack-enter-active {
+  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
+}
+
+.fab-stack-leave-active {
+  transition: all 0.2s ease-in;
+}
+
+.fab-stack-enter-from {
+  opacity: 0;
+  transform: translateY(8px) scale(0.8);
+}
+
+.fab-stack-leave-to {
+  opacity: 0;
+  transform: translateX(8px) scale(0.8);
+}
+
+.fab-stack-move {
+  transition: transform 0.25s ease;
+}
+</style>