Initial commit: CLEO ERP avec améliorations debug

- Configuration du debug conditionnel pour dev/recette
- Fonction debug() globale avec niveaux
- Logging des requêtes SQL
- Handlers d'exceptions et d'erreurs globaux

🤖 Generated with [Claude Code](https://claude.ai/code)

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

pub/res/css/schat.css

@@ -0,0 +1,96 @@
+.chat-container {
+    display: flex;
+    flex-direction: column;
+    height: 100%;
+    background: linear-gradient(95deg, #F5F5F5, #F5F5F5 60%, #CCC);
+}
+
+.chat-bubbles {
+    flex-grow: 1;
+    overflow-y: auto;
+    padding: 10px;
+}
+
+.chat-bubble {
+    display: flex;
+    flex-direction: column;
+    max-width: 90%;
+    border-radius: 20px;
+    padding: 10px 20px;
+    margin-bottom: 10px;
+    box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.1);
+}
+
+.user-info {
+    display: flex;
+    align-items: center;
+    font-size: 12px;
+    color: #666;
+    margin-bottom: 5px;
+}
+
+.user-initials {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    width: 30px;
+    height: 30px;
+    border-radius: 50%;
+    background-color: #eee;
+    font-size: 14px;
+    font-weight: bold;
+    margin-right: 10px;
+}
+
+.username-date {
+    display: flex;
+    flex-direction: column;
+}
+
+.username {
+    font-weight: bold;
+    margin-bottom: 3px;
+}
+
+.date {
+    font-style: italic;
+}
+
+.message {
+    font-size: 14px;
+    line-height: 1.5;
+}
+
+.right-chat-bubble {
+    background-color: #89b0db;
+    color: #fff;
+    margin-left: auto;
+}
+
+.left-chat-bubble {
+    background-color: #ff8000;
+    color: #fff;
+}
+
+.message-input {
+
+    align-items: center;
+    padding: 10px;
+}
+
+.chat-container input[type="text"] {
+    border-radius: 6px;
+    padding: 10px;
+    font-size: 1.2em;
+    width: 100%;
+}
+
+button {
+    background-color: #4e88c7;
+    color: #fff;
+    border-radius: 6px;
+    border: none;
+    padding: 10px 20px;
+    font-size: 1.2em;
+    cursor: pointer;
+}