diff --git a/frontend/dashboard.html b/frontend/dashboard.html
index 9eaf25e..1fed257 100644
--- a/frontend/dashboard.html
+++ b/frontend/dashboard.html
@@ -23,26 +23,6 @@
 
 <div id="app" class="flex w-full h-full relative bg-aethas-dark">
     
-    <!-- MODAL PARAMÈTRES (Sécurité) -->
-    <div v-if="isSettingsModalOpen" class="fixed inset-0 bg-black/80 z-[100] flex items-center justify-center p-4">
-        <div class="bg-aethas-panel border border-gray-600 rounded-2xl w-full max-w-md overflow-hidden shadow-[0_0_30px_rgba(0,0,0,0.7)]">
-            <div class="p-4 border-b border-gray-700 flex justify-between items-center bg-gray-800/50">
-                <h2 class="text-lg font-bold text-white flex items-center gap-2"><i data-lucide="settings" class="w-5 h-5 text-aethas-cyan"></i> Paramètres</h2>
-                <button @click="closeSettings" class="text-gray-400 hover:text-white"><i data-lucide="x" class="w-5 h-5"></i></button>
-            </div>
-            <div class="p-6 space-y-4">
-                <h3 class="text-sm font-semibold text-aethas-cyan uppercase tracking-wider mb-2">Sécurité du compte</h3>
-                <div v-if="settingsMessage" :class="['p-3 rounded text-sm text-center', settingsMessage.includes('succès') ? 'bg-green-900/50 text-green-200 border border-green-500' : 'bg-red-900/50 text-red-200 border border-red-500']">{{ settingsMessage }}</div>
-                <div><label class="block text-sm text-gray-300 mb-1">Ancien mot de passe</label><input v-model="passForm.old" type="password" class="w-full bg-aethas-dark border border-gray-600 rounded-lg px-4 py-2 focus:border-aethas-cyan focus:outline-none"></div>
-                <div><label class="block text-sm text-gray-300 mb-1">Nouveau mot de passe</label><input v-model="passForm.new" type="password" class="w-full bg-aethas-dark border border-gray-600 rounded-lg px-4 py-2 focus:border-aethas-cyan focus:outline-none"></div>
-                <div><label class="block text-sm text-gray-300 mb-1">Confirmer</label><input v-model="passForm.confirm" type="password" class="w-full bg-aethas-dark border border-gray-600 rounded-lg px-4 py-2 focus:border-aethas-cyan focus:outline-none"></div>
-                <button @click="changePassword" :disabled="isSavingSettings" class="w-full mt-4 bg-gray-700 hover:bg-gray-600 text-white font-semibold py-2.5 px-4 rounded-lg transition-colors border border-gray-500 disabled:opacity-50">
-                    <span v-if="isSavingSettings">Mise à jour...</span><span v-else>Modifier</span>
-                </button>
-            </div>
-        </div>
-    </div>
-
     <!-- BARRE LATÉRALE -->
     <div :class="['transition-all duration-300 flex-shrink-0 relative z-50 flex flex-col', isSidebarOpen ? 'w-72' : 'w-0']">
         <aside :class="['absolute top-0 left-0 h-full w-72 bg-aethas-panel border-r border-gray-700 flex flex-col transition-transform duration-300', isSidebarOpen ? 'translate-x-0' : '-translate-x-full']">
@@ -63,7 +43,7 @@
                 </button>
             </div>
 
-            <div class="flex-1 overflow-y-auto p-4 space-y-6">
+            <div class="flex-1 overflow-y-auto p-4 space-y-6 custom-scrollbar">
                 <div v-if="pinnedProjects.length > 0">
                     <h3 class="text-xs font-semibold text-gray-400 uppercase tracking-wider mb-2">Épinglés</h3>
                     <ul class="space-y-1">
@@ -84,14 +64,14 @@
                             <div class="hidden group-hover:flex items-center gap-1 bg-gray-800 pl-2 rounded">
                                 <button @click.stop="renameProject(project)" class="text-gray-400 hover:text-aethas-cyan"><i data-lucide="edit-2" class="w-3.5 h-3.5"></i></button>
                                 <button @click.stop="togglePin(project.id)" class="text-gray-400 hover:text-white"><i data-lucide="pin" class="w-3.5 h-3.5"></i></button>
-                                <button @click.stop="deleteProject(project.id)" class="text-gray-400 hover:text-red-400"><i data-lucide="trash-2" class="w-3.5 h-3.5"></i></button>
+                                <button @click.stop="deleteProject(project.id)" class="text-red-500 hover:text-red-400"><i data-lucide="trash-2" class="w-3.5 h-3.5"></i></button>
                             </div>
                         </li>
                     </ul>
                 </div>
             </div>
 
-            <!-- NOUVEAU : ENCART FINANCIER SOUS LE MENU RÉCENTS -->
+            <!-- ENCART FINANCIER -->
             <div class="px-4 pb-2 border-b border-gray-700">
                 <div v-if="financesList.length > 0" class="flex flex-col gap-1.5 mb-2">
                     <div v-for="fin in financesList" :key="fin.provider" class="text-[10px] bg-gray-800/80 border border-gray-600/50 px-2 py-1.5 rounded flex justify-between items-center shadow-inner">
@@ -137,7 +117,7 @@
         </header>
 
         <!-- VUE : CONFIGURATION (Par Niveaux) -->
-        <div v-if="activeView === 'settings'" class="flex-1 overflow-y-auto p-4 md:p-8">
+        <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>
                 
@@ -198,7 +178,7 @@
         </div>
 
         <!-- VUE : MODÈLES ET FINANCES (Admin Only) -->
-        <div v-if="activeView === 'models' && user.is_admin" class="flex-1 overflow-y-auto p-4 md:p-8 space-y-6">
+        <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">
                 <div>
                     <h2 class="text-2xl font-bold text-white flex items-center gap-2"><i data-lucide="cpu" class="w-6 h-6 text-aethas-cyan"></i> Modèles & Finances API</h2>
@@ -253,86 +233,89 @@
             </div>
         </div>
 
-        <!-- VUE : CHAT PAR DÉFAUT -->
-        <template v-if="activeView === 'chat'">
+        <!-- VUE : CHAT (Toujours accessible et affichée par défaut) -->
+        <div v-show="activeView === 'chat'" class="flex-1 flex flex-col min-h-0">
             <div v-if="!activeProject" class="flex-1 overflow-y-auto p-4 flex flex-col items-center justify-center">
                 <img src="/assets/logo.png" class="w-24 h-24 mb-6 rounded-full border-2 border-aethas-cyan shadow-[0_0_15px_rgba(6,182,212,0.5)]">
                 <h2 class="text-2xl font-bold text-gray-200 mb-2">Comment puis-je vous aider aujourd'hui ?</h2>
+                <p class="text-gray-500 text-sm">Sélectionnez ou créez un projet dans la barre latérale.</p>
             </div>
 
-            <div v-else class="flex-1 overflow-y-auto p-4 md:p-8 space-y-6 flex flex-col custom-scrollbar" id="chat-container">
-                <div v-if="messages.length === 0" class="flex-1 flex items-center justify-center text-gray-500 italic">Démarrez la conversation ci-dessous.</div>
-                
-                <div v-for="msg in messages" :key="msg.id" :class="['max-w-4xl rounded-2xl p-4', msg.role === 'user' ? 'bg-gray-800 ml-auto border border-gray-700' : 'bg-aethas-panel mr-auto border border-aethas-cyan/30 flex flex-col']">
-                    <div class="flex items-center gap-2 mb-2">
-                        <img v-if="msg.role === 'user' && user.avatar_path" :src="user.avatar_path" class="w-5 h-5 rounded-full object-cover">
-                        <span class="text-xs font-semibold uppercase tracking-wider text-gray-400">{{ msg.role === 'user' ? 'Vous' : 'AETHAS38' }}</span>
-                    </div>
+            <template v-else>
+                <div class="flex-1 overflow-y-auto p-4 md:p-8 space-y-6 flex flex-col custom-scrollbar" id="chat-container">
+                    <div v-if="messages.length === 0" class="flex-1 flex items-center justify-center text-gray-500 italic">Démarrez la conversation ci-dessous.</div>
                     
-                    <div class="text-gray-200 text-sm leading-relaxed w-full">
-                        <template v-for="(part, index) in parseMessage(msg.content)" :key="index">
-                            <div v-if="part.type === 'text'" class="whitespace-pre-wrap font-sans">{{ part.content }}</div>
-                            <div v-if="part.type === 'code'" class="my-4 bg-gray-900 rounded-lg border border-gray-700 overflow-hidden shadow-inner">
-                                <div class="flex justify-between items-center px-4 py-2 bg-gray-800 border-b border-gray-700">
-                                    <span class="text-xs text-gray-400 font-mono flex items-center gap-2"><i data-lucide="file-code-2" class="w-4 h-4"></i> {{ part.language || 'code' }}</span>
-                                    <button @click="downloadFile(part.content, part.language)" class="text-aethas-cyan hover:text-white flex items-center gap-1 text-xs transition-colors bg-gray-700 hover:bg-gray-600 px-2 py-1 rounded"><i data-lucide="download" class="w-3 h-3"></i> Fichier</button>
+                    <div v-for="msg in messages" :key="msg.id" :class="['max-w-4xl rounded-2xl p-4', msg.role === 'user' ? 'bg-gray-800 ml-auto border border-gray-700' : 'bg-aethas-panel mr-auto border border-aethas-cyan/30 flex flex-col']">
+                        <div class="flex items-center gap-2 mb-2">
+                            <img v-if="msg.role === 'user' && user.avatar_path" :src="user.avatar_path" class="w-5 h-5 rounded-full object-cover">
+                            <span class="text-xs font-semibold uppercase tracking-wider text-gray-400">{{ msg.role === 'user' ? 'Vous' : 'AETHAS38' }}</span>
+                        </div>
+                        
+                        <div class="text-gray-200 text-sm leading-relaxed w-full">
+                            <template v-for="(part, index) in parseMessage(msg.content)" :key="index">
+                                <div v-if="part.type === 'text'" class="whitespace-pre-wrap font-sans">{{ part.content }}</div>
+                                <div v-if="part.type === 'code'" class="my-4 bg-gray-900 rounded-lg border border-gray-700 overflow-hidden shadow-inner">
+                                    <div class="flex justify-between items-center px-4 py-2 bg-gray-800 border-b border-gray-700">
+                                        <span class="text-xs text-gray-400 font-mono flex items-center gap-2"><i data-lucide="file-code-2" class="w-4 h-4"></i> {{ part.language || 'code' }}</span>
+                                        <button @click="downloadFile(part.content, part.language)" class="text-aethas-cyan hover:text-white flex items-center gap-1 text-xs transition-colors bg-gray-700 hover:bg-gray-600 px-2 py-1 rounded"><i data-lucide="download" class="w-3 h-3"></i> Fichier</button>
+                                    </div>
+                                    <pre class="p-4 text-xs font-mono text-gray-300 overflow-x-auto custom-scrollbar"><code>{{ part.content }}</code></pre>
                                 </div>
-                                <pre class="p-4 text-xs font-mono text-gray-300 overflow-x-auto custom-scrollbar"><code>{{ part.content }}</code></pre>
+                            </template>
+                        </div>
+
+                        <div v-if="msg.role !== 'user'" class="mt-3 flex items-center gap-3 border-t border-gray-700/50 pt-2 opacity-50 hover:opacity-100 transition-opacity">
+                            <button @click="copyToClipboard(msg.content)" class="text-xs text-gray-400 hover:text-aethas-cyan flex items-center gap-1"><i data-lucide="copy" class="w-3 h-3"></i> Copier</button>
+                            <button @click="downloadMessage(msg.content, msg.created_at)" class="text-xs text-gray-400 hover:text-aethas-cyan flex items-center gap-1"><i data-lucide="file-down" class="w-3 h-3"></i> Extraire</button>
+                        </div>
+                    </div>
+
+                    <div v-if="isAiThinking" class="max-w-3xl rounded-2xl p-4 bg-aethas-panel mr-auto border border-aethas-cyan/30 w-24">
+                        <div class="flex space-x-1.5 h-4 items-center">
+                            <div class="w-2 h-2 bg-aethas-cyan rounded-full animate-bounce"></div>
+                            <div class="w-2 h-2 bg-aethas-cyan rounded-full animate-bounce" style="animation-delay: 0.15s"></div>
+                            <div class="w-2 h-2 bg-aethas-cyan rounded-full animate-bounce" style="animation-delay: 0.3s"></div>
+                        </div>
+                    </div>
+                </div>
+
+                <!-- ZONE SÉLECTION MODÈLES PAR REQUÊTE & PROMPT -->
+                <div class="p-4 md:p-6 w-full max-w-5xl mx-auto space-y-2 flex-shrink-0">
+                    <div class="bg-gray-800/80 border border-gray-700 rounded-xl p-3 flex flex-wrap gap-4 items-center text-xs shadow-md">
+                        <div class="flex items-center gap-2 flex-1 min-w-[200px]">
+                            <span class="text-aethas-cyan font-semibold w-20"><i data-lucide="users" class="w-3 h-3 inline"></i> Travailleurs:</span>
+                            <select multiple v-model="selectedWorkers" @change="limitWorkers" class="bg-aethas-dark border border-gray-600 rounded px-2 py-1 text-gray-200 w-full h-16 outline-none focus:border-aethas-cyan custom-scrollbar">
+                                <option value="gemini-3.5-flash-lite">Gemini 3.5 Flash-Lite (Direct)</option>
+                                <option v-for="m in modelInfo.models" :key="m.model_id" :value="m.model_id">{{ m.name || m.model_id }} ({{ m.domain }})</option>
+                            </select>
+                            <span class="text-gray-500 ml-1">{{ selectedWorkers.length }}/5</span>
+                        </div>
+                        
+                        <div class="flex flex-col gap-2 flex-1 min-w-[200px]" :class="{'opacity-30 pointer-events-none': selectedWorkers.length <= 1}">
+                            <div class="flex items-center gap-2">
+                                <span class="text-gray-400 font-semibold w-24"><i data-lucide="edit-3" class="w-3 h-3 inline"></i> Prompteur:</span>
+                                <select v-model="selectedPrompter" class="bg-aethas-dark border border-gray-600 rounded px-2 py-1 text-gray-200 flex-1 outline-none truncate">
+                                    <option value="gemini-3.5-flash-lite">Gemini 3.5 Flash-Lite (Direct)</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 class="flex items-center gap-2">
+                                <span class="text-aethas-purple font-semibold w-24"><i data-lucide="git-merge" class="w-3 h-3 inline"></i> Concaténeur:</span>
+                                <select v-model="selectedConcatenator" class="bg-aethas-dark border border-gray-600 rounded px-2 py-1 text-gray-200 flex-1 outline-none truncate">
+                                    <option value="gemini-3.5-flash-lite">Gemini 3.5 Flash-Lite (Direct)</option>
+                                    <option v-for="m in modelInfo.models" :key="m.model_id" :value="m.model_id">{{ m.name || m.model_id }}</option>
+                                </select>
                             </div>
-                        </template>
-                    </div>
-
-                    <div v-if="msg.role !== 'user'" class="mt-3 flex items-center gap-3 border-t border-gray-700/50 pt-2 opacity-50 hover:opacity-100 transition-opacity">
-                        <button @click="copyToClipboard(msg.content)" class="text-xs text-gray-400 hover:text-aethas-cyan flex items-center gap-1"><i data-lucide="copy" class="w-3 h-3"></i> Copier</button>
-                        <button @click="downloadMessage(msg.content, msg.created_at)" class="text-xs text-gray-400 hover:text-aethas-cyan flex items-center gap-1"><i data-lucide="file-down" class="w-3 h-3"></i> Extraire</button>
-                    </div>
-                </div>
-
-                <div v-if="isAiThinking" class="max-w-3xl rounded-2xl p-4 bg-aethas-panel mr-auto border border-aethas-cyan/30 w-24">
-                    <div class="flex space-x-1.5 h-4 items-center">
-                        <div class="w-2 h-2 bg-aethas-cyan rounded-full animate-bounce"></div>
-                        <div class="w-2 h-2 bg-aethas-cyan rounded-full animate-bounce" style="animation-delay: 0.15s"></div>
-                        <div class="w-2 h-2 bg-aethas-cyan rounded-full animate-bounce" style="animation-delay: 0.3s"></div>
-                    </div>
-                </div>
-            </div>
-
-            <!-- ZONE SÉLECTION MODÈLES PAR REQUÊTE -->
-            <div v-if="activeProject" class="p-4 md:p-6 w-full max-w-5xl mx-auto space-y-2">
-                <div class="bg-gray-800/80 border border-gray-700 rounded-xl p-3 flex flex-wrap gap-4 items-center text-xs shadow-md">
-                    <div class="flex items-center gap-2 flex-1 min-w-[200px]">
-                        <span class="text-aethas-cyan font-semibold w-20"><i data-lucide="users" class="w-3 h-3 inline"></i> Travailleurs:</span>
-                        <select multiple v-model="selectedWorkers" @change="limitWorkers" class="bg-aethas-dark border border-gray-600 rounded px-2 py-1 text-gray-200 w-full h-16 outline-none focus:border-aethas-cyan custom-scrollbar">
-                            <option value="gemini-3.5-flash-lite">Gemini 3.5 Flash-Lite (Direct)</option>
-                            <option v-for="m in modelInfo.models" :key="m.model_id" :value="m.model_id">{{ m.name || m.model_id }} ({{ m.domain }})</option>
-                        </select>
-                        <span class="text-gray-500 ml-1">{{ selectedWorkers.length }}/5</span>
-                    </div>
-                    
-                    <div class="flex flex-col gap-2 flex-1 min-w-[200px]" :class="{'opacity-30 pointer-events-none': selectedWorkers.length <= 1}">
-                        <div class="flex items-center gap-2">
-                            <span class="text-gray-400 font-semibold w-24"><i data-lucide="edit-3" class="w-3 h-3 inline"></i> Prompteur:</span>
-                            <select v-model="selectedPrompter" class="bg-aethas-dark border border-gray-600 rounded px-2 py-1 text-gray-200 flex-1 outline-none truncate">
-                                <option value="gemini-3.5-flash-lite">Gemini 3.5 Flash-Lite (Direct)</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 class="flex items-center gap-2">
-                            <span class="text-aethas-purple font-semibold w-24"><i data-lucide="git-merge" class="w-3 h-3 inline"></i> Concaténeur:</span>
-                            <select v-model="selectedConcatenator" class="bg-aethas-dark border border-gray-600 rounded px-2 py-1 text-gray-200 flex-1 outline-none truncate">
-                                <option value="gemini-3.5-flash-lite">Gemini 3.5 Flash-Lite (Direct)</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>
-                </div>
 
-                <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="Sélectionnez vos modèles ci-dessus, puis posez votre question..."></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 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="Sélectionnez vos modèles ci-dessus, puis posez votre question..."></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>
-            </div>
-        </template>
+            </template>
+        </div>
     </main>
 </div>
 
@@ -405,12 +388,13 @@
                     if(res.ok) { 
                         await fetchModelsInfo(); 
                         await fetchFinances();
-                        alert("Synchronisation terminée !"); 
+                        alert("Synchronisation réussie !"); 
                     } else {
-                        const err = await res.json();
-                        alert("Erreur: " + err.detail);
+                        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 de synchronisation."); } 
+                } catch(e) { alert("Erreur réseau: impossible de contacter le serveur (" + e.message + ")."); } 
                 isSyncing.value = false; 
             };
 
@@ -448,7 +432,7 @@
                     if (response.ok) { 
                         const data = await response.json(); 
                         if (Array.isArray(data)) messages.value = data; 
-                        await fetchFinances(); // MAJ du budget sous le nom
+                        await fetchFinances(); 
                     } else { 
                         const err = await response.json(); alert("Erreur API IA : " + err.detail); 
                     }