diff --git a/frontend/dashboard.html b/frontend/dashboard.html
index 2653648..193d036 100644
--- a/frontend/dashboard.html
+++ b/frontend/dashboard.html
@@ -101,7 +101,7 @@
                 </div>
             </div>
             
-            <div class="p-4 flex justify-between items-center cursor-pointer hover:bg-gray-800 transition-colors" @click="activeView = 'settings'">
+            <div class="p-4 flex justify-between items-center cursor-pointer hover:bg-gray-800 transition-colors" @click="openSettings">
                 <div class="flex items-center gap-2">
                     <img v-if="user.avatar_path" :src="user.avatar_path" class="w-8 h-8 rounded-full object-cover border border-gray-600 bg-gray-900">
                     <div v-else class="w-8 h-8 rounded-full bg-gradient-to-tr from-aethas-cyan to-aethas-purple flex items-center justify-center text-sm font-bold shadow-md">{{ user.username.charAt(0).toUpperCase() }}</div>
@@ -136,62 +136,6 @@
             </div>
         </header>
 
-        <!-- VUE : CONFIGURATION -->
-        <div v-if="activeView === 'settings'" class="flex-1 overflow-y-auto p-4 md:p-8 custom-scrollbar">
-            <div class="max-w-4xl mx-auto space-y-6">
-                <h2 class="text-2xl font-bold text-white flex items-center gap-2 border-b border-gray-700 pb-4"><i data-lucide="settings-2" class="w-6 h-6 text-aethas-cyan"></i> Configuration Système</h2>
-                
-                <div class="flex border-b border-gray-700">
-                    <button @click="settingsTab = 'user'" :class="['py-2 px-4 text-sm font-semibold border-b-2 transition-colors', settingsTab === 'user' ? 'border-aethas-cyan text-aethas-cyan' : 'border-transparent text-gray-400 hover:text-white']">Mon Profil (Utilisateur)</button>
-                    <button v-if="user.is_admin" @click="settingsTab = 'admin'" :class="['py-2 px-4 text-sm font-semibold border-b-2 transition-colors', settingsTab === 'admin' ? 'border-red-500 text-red-400' : 'border-transparent text-gray-400 hover:text-white']">Administration</button>
-                    <button v-if="user.is_superadmin" @click="settingsTab = 'super'" :class="['py-2 px-4 text-sm font-semibold border-b-2 transition-colors', settingsTab === 'super' ? 'border-aethas-purple text-purple-400' : 'border-transparent text-gray-400 hover:text-white']">Super-Admin</button>
-                </div>
-
-                <div v-if="settingsTab === 'user'" class="space-y-6">
-                    <div class="bg-gray-800 p-6 rounded-xl border border-gray-700">
-                        <h3 class="text-lg font-semibold text-white mb-4">Personnalisation du Profil</h3>
-                        <div class="flex items-center gap-6">
-                            <img v-if="user.avatar_path" :src="user.avatar_path" class="w-20 h-20 rounded-full object-cover border-2 border-aethas-cyan bg-gray-900 shadow-lg">
-                            <div v-else class="w-20 h-20 rounded-full bg-gradient-to-tr from-aethas-cyan to-aethas-purple flex items-center justify-center text-2xl font-bold shadow-lg">{{ user.username.charAt(0).toUpperCase() }}</div>
-                            <div class="flex-1">
-                                <label class="bg-aethas-panel hover:bg-gray-700 text-white border border-gray-600 px-4 py-2 rounded-lg cursor-pointer transition-colors text-sm inline-block">
-                                    <i data-lucide="upload" class="w-4 h-4 inline mr-1"></i> Uploader un nouvel Avatar
-                                    <input type="file" accept="image/*" @change="uploadAvatar" class="hidden">
-                                </label>
-                            </div>
-                        </div>
-                    </div>
-                    <div class="bg-gray-800 p-6 rounded-xl border border-gray-700">
-                        <h3 class="text-lg font-semibold text-white mb-4">Sécurité</h3>
-                        <div v-if="settingsMessage" class="p-3 rounded text-sm mb-4 bg-gray-900 border border-aethas-cyan text-aethas-cyan">{{ settingsMessage }}</div>
-                        <div class="grid gap-4 max-w-md">
-                            <input v-model="passForm.old" type="password" placeholder="Ancien mot de passe" class="bg-aethas-dark border border-gray-600 rounded-lg px-4 py-2 focus:border-aethas-cyan focus:outline-none">
-                            <input v-model="passForm.new" type="password" placeholder="Nouveau mot de passe" class="bg-aethas-dark border border-gray-600 rounded-lg px-4 py-2 focus:border-aethas-cyan focus:outline-none">
-                            <input v-model="passForm.confirm" type="password" placeholder="Confirmer" class="bg-aethas-dark border border-gray-600 rounded-lg px-4 py-2 focus:border-aethas-cyan focus:outline-none">
-                            <button @click="changePassword" :disabled="isSavingSettings" class="bg-gray-700 hover:bg-gray-600 text-white font-semibold py-2 px-4 rounded-lg disabled:opacity-50">Modifier le mot de passe</button>
-                        </div>
-                    </div>
-                </div>
-
-                <div v-if="settingsTab === 'admin' && user.is_admin" class="space-y-6">
-                    <div class="bg-gray-800 p-6 rounded-xl border border-gray-700">
-                        <h3 class="text-lg font-semibold text-red-400 mb-4">Outils Administrateur</h3>
-                        <div class="flex gap-4">
-                            <button @click="activeView = 'models'" class="bg-gray-700 hover:bg-gray-600 text-white px-4 py-2 rounded-lg text-sm border border-gray-600">Ouvrir le panneau Modèles IA</button>
-                            <a href="/api/models/export" target="_blank" class="bg-gray-700 hover:bg-gray-600 text-white px-4 py-2 rounded-lg text-sm border border-gray-600">Exporter DB Modèles (JSON)</a>
-                        </div>
-                    </div>
-                </div>
-
-                <div v-if="settingsTab === 'super' && user.is_superadmin" class="space-y-6">
-                    <div class="bg-gray-800 p-6 rounded-xl border border-gray-700 border-l-4 border-l-aethas-purple">
-                        <h3 class="text-lg font-semibold text-purple-400 mb-4">Espace Réservé Super-Admin</h3>
-                        <p class="text-sm text-gray-400">Gestion globale du système.</p>
-                    </div>
-                </div>
-            </div>
-        </div>
-
         <!-- VUE : MODÈLES ET FINANCES -->
         <div v-if="activeView === 'models' && user.is_admin" class="flex-1 overflow-y-auto p-4 md:p-8 space-y-6 custom-scrollbar">
             <div class="flex justify-between items-end border-b border-gray-700 pb-4">
@@ -236,7 +180,7 @@
                                 <td class="px-4 py-3 font-mono text-xs text-aethas-cyan break-all">{{ model.model_id }}</td>
                                 <td class="px-4 py-3 capitalize">{{ model.provider }}</td>
                                 <td class="px-4 py-3"><span class="bg-gray-700 text-gray-200 px-2 py-1 rounded text-xs">{{ model.domain }}</span></td>
-                                <td class="px-4 py-3 font-mono text-xs"><span v-if="model.is_free" class="text-green-400 font-bold">GRATUIT</span><span v-else>In: ${{ model.pricing_prompt.toFixed(2) }}<br>Out:${{ model.pricing_completion.toFixed(2) }}</span></td>
+                                <td class="px-4 py-3 font-mono text-xs"><span v-if="model.is_free" class="text-green-400 font-bold">GRATUIT</span><span v-else>In: ${{ model.pricing_prompt.toFixed(2) }}<br>Out: ${{ model.pricing_completion.toFixed(2) }}</span></td>
                                 <td class="px-4 py-3">{{ (model.context_length / 1000).toFixed(0) }}k</td>
                                 <td class="px-4 py-3 text-xs text-gray-400 truncate max-w-[250px]" :title="model.description_fr">{{ model.description_fr }}</td>
                             </tr>
@@ -337,4 +281,235 @@
                         </div>
 
                         <!-- 5. TRAVAILLEUR 3 -->
-                        <div class="
\ No newline at end of file
+                        <div class="border-r border-black p-1.5 bg-gray-800 flex flex-col justify-center">
+                            <label class="block text-[9px] text-aethas-cyan mb-1">TRAVAILLEUR 3</label>
+                            <select v-model="workers[2]" class="w-full bg-aethas-dark border border-gray-700 rounded text-gray-200 text-[10px] p-1 outline-none truncate">
+                                <option value="">(Aucun)</option>
+                                <option v-for="m in filteredBarModels" :key="m.model_id" :value="m.model_id">{{ m.name || m.model_id }}</option>
+                            </select>
+                        </div>
+
+                        <!-- 6. TRAVAILLEUR 4 -->
+                        <div class="border-r border-black p-1.5 bg-gray-800 flex flex-col justify-center">
+                            <label class="block text-[9px] text-aethas-cyan mb-1">TRAVAILLEUR 4</label>
+                            <select v-model="workers[3]" class="w-full bg-aethas-dark border border-gray-700 rounded text-gray-200 text-[10px] p-1 outline-none truncate">
+                                <option value="">(Aucun)</option>
+                                <option v-for="m in filteredBarModels" :key="m.model_id" :value="m.model_id">{{ m.name || m.model_id }}</option>
+                            </select>
+                        </div>
+
+                        <!-- 7. TRAVAILLEUR 5 -->
+                        <div class="border-r border-black p-1.5 bg-gray-800 flex flex-col justify-center">
+                            <label class="block text-[9px] text-aethas-cyan mb-1">TRAVAILLEUR 5</label>
+                            <select v-model="workers[4]" class="w-full bg-aethas-dark border border-gray-700 rounded text-gray-200 text-[10px] p-1 outline-none truncate">
+                                <option value="">(Aucun)</option>
+                                <option v-for="m in filteredBarModels" :key="m.model_id" :value="m.model_id">{{ m.name || m.model_id }}</option>
+                            </select>
+                        </div>
+
+                        <!-- 8. PROMPTEUR -->
+                        <div class="border-r border-black p-1.5 bg-gray-800 flex flex-col justify-center">
+                            <label class="block text-[9px] text-gray-400 mb-1">PROMPTEUR</label>
+                            <select v-model="selectedPrompter" class="w-full bg-aethas-dark border border-gray-700 rounded text-gray-200 text-[10px] p-1 outline-none truncate">
+                                <option value="gemini-3.5-flash-lite">Gemini Flash</option>
+                                <option v-for="m in modelInfo.models" :key="m.model_id" :value="m.model_id">{{ m.name || m.model_id }}</option>
+                            </select>
+                        </div>
+
+                        <!-- 9. CONCATENEUR -->
+                        <div class="p-1.5 bg-gray-800 flex flex-col justify-center">
+                            <label class="block text-[9px] text-aethas-purple mb-1">CONCATENEUR</label>
+                            <select v-model="selectedConcatenator" class="w-full bg-aethas-dark border border-gray-700 rounded text-gray-200 text-[10px] p-1 outline-none truncate">
+                                <option value="gemini-3.5-flash-lite">Gemini Flash</option>
+                                <option v-for="m in modelInfo.models" :key="m.model_id" :value="m.model_id">{{ m.name || m.model_id }}</option>
+                            </select>
+                        </div>
+
+                    </div>
+
+                    <!-- Champ de texte du message -->
+                    <div class="relative flex items-end bg-gray-800 border border-gray-600 rounded-2xl p-2 shadow-lg focus-within:border-aethas-cyan">
+                        <textarea v-model="prompt" @input="autoResize" @keydown.enter.exact.prevent="sendMessage" ref="promptTextarea" :disabled="isAiThinking" rows="1" class="w-full bg-transparent text-gray-200 p-3 max-h-[200px] overflow-y-auto focus:outline-none resize-none disabled:opacity-50 custom-scrollbar" placeholder="Posez votre question à l'orchestrateur..."></textarea>
+                        <button @click="sendMessage" :disabled="!prompt.trim() || isAiThinking" class="p-3 text-aethas-cyan hover:text-white disabled:opacity-50"><i data-lucide="send" class="w-5 h-5"></i></button>
+                    </div>
+                </div>
+            </template>
+        </div>
+    </main>
+</div>
+
+<script>
+    const { createApp, ref, reactive, onMounted, nextTick, computed } = Vue;
+
+    createApp({
+        setup() {
+            const user = ref({ username: "Guest", is_admin: false, is_superadmin: false, avatar_path: null });
+            const activeView = ref('chat'); 
+            const settingsTab = ref('user');
+            const isSidebarOpen = ref(true);
+            const prompt = ref("");
+            const promptTextarea = ref(null);
+            
+            const projects = ref([]);
+            const activeProject = ref(null);
+            const messages = ref([]);
+            
+            const isLoading = ref(false);
+            const isAiThinking = ref(false);
+            const isSyncing = ref(false);
+            const isSavingSettings = ref(false);
+
+            const isSettingsModalOpen = ref(false);
+            const settingsMessage = ref("");
+            const passForm = reactive({ old: '', new: '', confirm: '' });
+            
+            const modelInfo = reactive({ last_sync_date: null, last_sync_type: null, models: [] });
+            const financesList = ref([]);
+            const filterSearch = ref("");
+            const filterDomain = ref("");
+            const filterPricing = ref("");
+            
+            const workers = ref(["gemini-3.5-flash-lite", "", "", "", ""]);
+            const selectedPrompter = ref("gemini-3.5-flash-lite");
+            const selectedConcatenator = ref("gemini-3.5-flash-lite");
+
+            const pinnedProjects = computed(() => projects.value.filter(p => p.is_pinned));
+            const recentProjects = computed(() => projects.value.filter(p => !p.is_pinned));
+
+            const filteredModels = computed(() => {
+                return modelInfo.models.filter(m => {
+                    const matchSearch = (m.model_id.toLowerCase().includes(filterSearch.value.toLowerCase()) || m.provider.toLowerCase().includes(filterSearch.value.toLowerCase()));
+                    const matchDomain = filterDomain.value === "" || m.domain === filterDomain.value;
+                    let matchPrice = true;
+                    if (filterPricing.value === 'free') matchPrice = m.is_free;
+                    if (filterPricing.value === 'paid') matchPrice = !m.is_free;
+                    return matchSearch && matchDomain && matchPrice;
+                });
+            });
+
+            const filteredBarModels = computed(() => {
+                return modelInfo.models.filter(m => {
+                    const matchDomain = filterDomain.value === "" || m.domain === filterDomain.value;
+                    let matchPrice = true;
+                    if (filterPricing.value === 'free') matchPrice = m.is_free;
+                    if (filterPricing.value === 'paid') matchPrice = !m.is_free;
+                    return matchDomain && matchPrice;
+                });
+            });
+
+            const formatDate = (isoString) => {
+                if (!isoString) return "Jamais";
+                const d = new Date(isoString);
+                return d.toLocaleDateString('fr-FR', { day: '2-digit', month: '2-digit', year: 'numeric' }) + " à " + d.toLocaleTimeString('fr-FR', { hour: '2-digit', minute: '2-digit' });
+            };
+
+            const toggleSidebar = () => { isSidebarOpen.value = !isSidebarOpen.value; };
+            const autoResize = () => { const el = promptTextarea.value; if(el){ el.style.height = 'auto'; el.style.height = el.scrollHeight + 'px'; }};
+            const scrollToBottom = () => { nextTick(() => { const c = document.getElementById('chat-container'); if (c) c.scrollTop = c.scrollHeight; }); };
+
+            const openSettings = () => { isSettingsModalOpen.value = true; nextTick(() => lucide.createIcons()); };
+            const closeSettings = () => { isSettingsModalOpen.value = false; };
+
+            const fetchUser = async () => { try { const res = await fetch('/api/users/me'); if(res.ok) user.value = await res.json(); } catch(e){} };
+            const fetchModelsInfo = async () => { try { const res = await fetch('/api/models/info'); if(res.ok) { const data = await res.json(); modelInfo.last_sync_date = data.last_sync_date; modelInfo.last_sync_type = data.last_sync_type; modelInfo.models = data.models; } } catch(e){} };
+            const fetchFinances = async () => { try { const res = await fetch('/api/finances'); if(res.ok) financesList.value = await res.json(); } catch(e){} };
+            
+            const syncModels = async () => { 
+                isSyncing.value = true; 
+                try { 
+                    const res = await fetch('/api/models/sync', { method: 'POST' }); 
+                    if(res.ok) { 
+                        await fetchModelsInfo(); 
+                        await fetchFinances();
+                        alert("Synchronisation réussie !"); 
+                    } else {
+                        let errText = await res.text();
+                        try { const errObj = JSON.parse(errText); errText = errObj.detail || errText; } catch(e){}
+                        alert("Erreur retournée par le serveur : " + errText);
+                    }
+                } catch(e) { alert("Erreur réseau: impossible de contacter le serveur."); } 
+                isSyncing.value = false; 
+            };
+
+            const uploadAvatar = async (event) => {
+                const file = event.target.files[0];
+                if (!file) return;
+                const formData = new FormData(); formData.append("file", file);
+                try {
+                    const res = await fetch('/api/users/me/avatar', { method: 'POST', body: formData });
+                    const data = await res.json();
+                    if(res.ok) user.value.avatar_path = data.avatar_path;
+                    else alert(data.detail);
+                } catch(e) { alert("Erreur d'upload"); }
+                event.target.value = null;
+            };
+
+            const exportProject = (format) => { if(activeProject.value) window.open(`/api/projects/${activeProject.value.id}/export?format=${format}`, '_blank'); };
+            const copyToClipboard = async (text) => { try { await navigator.clipboard.writeText(text); alert("Copié !"); } catch (e) {} };
+            const downloadFile = (content, hint) => { let fname = hint ? hint.trim() : 'code.txt'; if (!fname.includes('.')) fname += '.txt'; const blob = new Blob([content], { type: 'text/plain;charset=utf-8' }); const url = URL.createObjectURL(blob); const a = document.createElement('a'); a.href = url; a.download = fname; a.click(); URL.revokeObjectURL(url); };
+            const downloadMessage = (content, dateString) => { downloadFile(content, `message_${dateString.replace(/[:T.Z]/g, '-')}.txt`); };
+            const parseMessage = (content) => { const regex = /```([\w.-]*)\n([\s\S]*?)```/g; let parts = [], last = 0, m; while ((m = regex.exec(content)) !== null) { if (m.index > last) parts.push({ type: 'text', content: content.slice(last, m.index) }); parts.push({ type: 'code', language: m[1], content: m[2] }); last = m.index + m[0].length; } if (last < content.length) parts.push({ type: 'text', content: content.slice(last) }); return parts.length > 0 ? parts : [{ type: 'text', content: content }]; };
+
+            const fetchProjects = async () => { try { const res = await fetch('/api/projects'); if(res.ok) projects.value = await res.json(); nextTick(()=>lucide.createIcons()); } catch(e){} };
+            const selectProject = async (project) => { activeView.value = 'chat'; activeProject.value = project; messages.value = []; try { const res = await fetch(`/api/projects/${project.id}/messages`); if(res.ok) { messages.value = await res.json(); scrollToBottom(); nextTick(()=>lucide.createIcons()); } } catch(e){} };
+            const createNewProject = async () => { activeView.value = 'chat'; isLoading.value = true; try { const res = await fetch('/api/projects', { method: 'POST', headers: {'Content-Type': 'application/json'}, body: JSON.stringify({title: "Nouvelle discussion"})}); if(res.ok){ const np = await res.json(); projects.value.unshift(np); selectProject(np); } } catch(e){} finally{isLoading.value = false;} };
+
+            const sendMessage = async () => {
+                const activeWorkers = workers.value.filter(w => w && w.trim() !== "");
+                if (!prompt.value.trim() || !activeProject.value || activeWorkers.length === 0) {
+                    alert("Veuillez sélectionner au moins un travailleur.");
+                    return;
+                }
+                const userText = prompt.value.trim(); prompt.value = ""; autoResize();
+                messages.value.push({ id: Date.now(), role: 'user', content: userText });
+                isAiThinking.value = true; scrollToBottom();
+                
+                const payload = { 
+                    role: 'user', 
+                    content: userText, 
+                    config: { 
+                        workers: activeWorkers, 
+                        prompter: selectedPrompter.value, 
+                        concatenator: selectedConcatenator.value 
+                    } 
+                };
+                try {
+                    const response = await fetch(`/api/projects/${activeProject.value.id}/messages`, { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(payload) });
+                    if (response.ok) { 
+                        const data = await response.json(); 
+                        if (Array.isArray(data)) messages.value = data; 
+                        await fetchFinances(); 
+                    } else { 
+                        const err = await response.json(); alert("Erreur API IA : " + err.detail); 
+                    }
+                } catch (error) {} finally { isAiThinking.value = false; scrollToBottom(); nextTick(()=>lucide.createIcons()); }
+            };
+
+            const changePassword = async () => {
+                settingsMessage.value = "";
+                if (passForm.new !== passForm.confirm) { settingsMessage.value = "Mots de passe différents."; return; }
+                if (passForm.new.length < 8) { settingsMessage.value = "8 caractères minimum."; return; }
+                isSavingSettings.value = true;
+                try { const res = await fetch('/api/users/me/password', { method: 'PUT', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ old_password: passForm.old, new_password: passForm.new }) }); const data = await res.json(); if (res.ok) { settingsMessage.value = data.message; passForm.old=''; passForm.new=''; passForm.confirm=''; } else { settingsMessage.value = data.detail; } } catch (e) {} finally { isSavingSettings.value = false; }
+            };
+
+            const renameProject = async (project) => { const nt = window.prompt("Nom :", project.title); if (!nt || nt.trim() === "" || nt === project.title) return; try { const res = await fetch(`/api/projects/${project.id}/rename`, { method: 'PUT', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ title: nt.trim() }) }); if (res.ok) { const up = await res.json(); const i = projects.value.findIndex(p => p.id === project.id); if (i !== -1) projects.value[i] = up; if (activeProject.value && activeProject.value.id === project.id) activeProject.value.title = up.title; } } catch (e) {} };
+            const togglePin = async (pid) => { try { const res = await fetch(`/api/projects/${pid}/pin`, { method: 'PUT' }); if (res.ok) { const up = await res.json(); const i = projects.value.findIndex(p => p.id === pid); if (i !== -1) projects.value[i] = up; } } catch (e) {} };
+            const deleteProject = async (pid) => { if (!confirm("Supprimer ce projet ?")) return; try { const res = await fetch(`/api/projects/${pid}`, { method: 'DELETE' }); if (res.ok) { projects.value = projects.value.filter(p => p.id !== pid); if (activeProject.value && activeProject.value.id === pid) activeProject.value = null; } } catch (e) {} };
+
+            onMounted(() => { lucide.createIcons(); fetchUser(); fetchProjects(); fetchModelsInfo(); fetchFinances(); });
+
+            return { 
+                user, activeView, settingsTab, isSidebarOpen, toggleSidebar, prompt, autoResize, promptTextarea, 
+                projects, pinnedProjects, recentProjects, activeProject, messages, isAiThinking,
+                createNewProject, selectProject, renameProject, sendMessage, isLoading, togglePin, deleteProject,
+                isSettingsModalOpen, openSettings, closeSettings, passForm, settingsMessage, isSavingSettings, changePassword, uploadAvatar,
+                modelInfo, financesList, filterSearch, filterDomain, filterPricing, filteredModels, filteredBarModels, formatDate, syncModels, isSyncing,
+                workers, selectedPrompter, selectedConcatenator,
+                exportProject, copyToClipboard, downloadFile, downloadMessage, parseMessage
+            };
+        }
+    }).mount('#app');
+</script>
+</body>
+</html>
\ No newline at end of file