Expand task statuses and improve task filtering and sorting

Update task statuses to include a full Kanban workflow (backlog, todo, in_progress, review, testing, done, archived) and enhance filtering and sorting logic for tasks.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: d43bd811-9372-45a7-8ac9-4a954c0538e1
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/1957c339-2757-4d1f-8e92-e9f71a1ce58e/d43bd811-9372-45a7-8ac9-4a954c0538e1/GclqueU

shared/schema.ts

@@ -245,7 +245,7 @@ export const tasks = pgTable("tasks", {
   description: text("description"), // Description de la tâche (optionnel)
   dueDate: timestamp("due_date"), // Date d'échéance (optionnel)
   priority: varchar("priority").notNull().default("medium"), // low, medium, high
-  status: varchar("status").notNull().default("pending"), // pending, completed
+  status: varchar("status").notNull().default("todo"), // backlog, todo, in_progress, review, testing, done, archived
   assignedTo: text("assigned_to").notNull(), // Utilisateur responsable (champ libre)
   createdBy: varchar("created_by").notNull(), // Utilisateur créateur
   groupId: integer("group_id").notNull(), // Magasin/groupe associé