feat: add team_lead role to user management and update related functionalities

src/app/admin/users/page.js

@@ -125,6 +125,8 @@ export default function UserManagementPage() {
 		switch (role) {
 			case "admin":
 				return "red";
+			case "team_lead":
+				return "purple";
 			case "project_manager":
 				return "blue";
 			case "user":
@@ -140,6 +142,8 @@ export default function UserManagementPage() {
 		switch (role) {
 			case "project_manager":
 				return "Project Manager";
+			case "team_lead":
+				return "Team Lead";
 			case "read_only":
 				return "Read Only";
 			default:
@@ -433,6 +437,7 @@ function CreateUserModal({ onClose, onUserCreated }) {
 							<option value="read_only">Read Only</option>
 							<option value="user">User</option>
 							<option value="project_manager">Project Manager</option>
+							<option value="team_lead">Team Lead</option>
 							<option value="admin">Admin</option>
 						</select>
 					</div>

src/lib/init-db.js

@@ -312,7 +312,7 @@ export default function initializeDatabase() {
 			name TEXT NOT NULL,
 			username TEXT UNIQUE NOT NULL,
 			password_hash TEXT NOT NULL,
-			role TEXT CHECK(role IN ('admin', 'project_manager', 'user', 'read_only')) DEFAULT 'user',
+			role TEXT CHECK(role IN ('admin', 'team_lead', 'project_manager', 'user', 'read_only')) DEFAULT 'user',
 			created_at TEXT DEFAULT CURRENT_TIMESTAMP,
 			updated_at TEXT DEFAULT CURRENT_TIMESTAMP,
 			is_active INTEGER DEFAULT 1,

src/lib/middleware/auth.js

@@ -3,7 +3,8 @@ import { NextResponse } from "next/server"
 
 // Role hierarchy for permission checking
 const ROLE_HIERARCHY = {
-  'admin': 4,
+  'admin': 5,
+  'team_lead': 4,
   'project_manager': 3,
   'user': 2,
   'read_only': 1

src/lib/userManagement.js

@@ -53,7 +53,7 @@ export function getAllUsers() {
 
 // Update user role
 export function updateUserRole(userId, role) {
-  const validRoles = ['admin', 'project_manager', 'user', 'read_only']
+  const validRoles = ['admin', 'team_lead', 'project_manager', 'user', 'read_only']
   if (!validRoles.includes(role)) {
     throw new Error("Invalid role")
   }
@@ -159,7 +159,7 @@ export async function updateUser(userId, updates) {
   }
 
   if (updates.role !== undefined) {
-    const validRoles = ['admin', 'project_manager', 'user', 'read_only'];
+    const validRoles = ['admin', 'team_lead', 'project_manager', 'user', 'read_only'];
     if (!validRoles.includes(updates.role)) {
       throw new Error("Invalid role");
     }