Adds habit edit, archive, and undo log features

Enables users to update or archive habits and to undo the latest habit log.
Adds PATCH/DELETE API endpoints for habit edit and soft deletion.
Introduces UI dialogs and controls for editing and archiving habits,
as well as for undoing the most recent log entry directly from the dashboard.
Improves log statistics handling by ordering and simplifies last log detection.

app/api/habits/route.ts

@@ -33,26 +33,22 @@ export async function GET() {
     // Then get aggregated log data for each habit
     const habitsWithStats = await Promise.all(
       userHabitsBase.map(async (habit) => {
-        // Get all logs for this habit
+        // Get all logs for this habit, ordered by date desc
         const logs = await db
           .select({
+            id: habitLogs.id,
             loggedAt: habitLogs.loggedAt,
           })
           .from(habitLogs)
-          .where(eq(habitLogs.habitId, habit.id));
+          .where(eq(habitLogs.habitId, habit.id))
+          .orderBy(desc(habitLogs.loggedAt));
 
         // Calculate statistics
         const totalLogs = logs.length;
         const logsLastWeek = logs.filter((log) => log.loggedAt >= sevenDaysAgo).length;
         const logsLastMonth = logs.filter((log) => log.loggedAt >= thirtyDaysAgo).length;
-        const lastLoggedAt =
-          logs.length > 0
-            ? logs.reduce(
-                (latest, log) => (log.loggedAt > latest ? log.loggedAt : latest),
-                logs[0].loggedAt,
-              )
-            : null;
-
+        const lastLoggedAt = logs.length > 0 ? logs[0].loggedAt : null;
+        
         return {
           id: habit.id,
           name: habit.name,