diff --git a/src/layouts/InstructorLayout.tsx b/src/layouts/InstructorLayout.tsx
index b74a1c8..fa7f97f 100644
--- a/src/layouts/InstructorLayout.tsx
+++ b/src/layouts/InstructorLayout.tsx
@@ -451,6 +451,7 @@ export function InstructorLayout({ session, route, onNavigate, onLogout, courses
                   </div>
                   <div className="min-w-0">
                     <p className="truncate text-[14px] font-black text-[#111827]">{displayName}</p>
+                    <p className="mt-1 break-all text-[11px] leading-4 text-[#64748b]">{session.user.email}</p>
                   </div>
                 </div>
 
diff --git a/src/lib/curriculum.ts b/src/lib/curriculum.ts
index 7c4b790..9d6eb1a 100644
--- a/src/lib/curriculum.ts
+++ b/src/lib/curriculum.ts
@@ -1,4 +1,5 @@
 export type CurriculumWeek = {
+  canDelete?: boolean;
   week: number;
   title: string;
   tags: string[];
@@ -223,8 +224,10 @@ export async function createInstructorCurriculumMap(
 export async function deleteInstructorCurriculumWeek(
   accessToken: string,
   week: number,
+  courseId?: string | null,
 ): Promise<InstructorCurriculumResponse> {
-  const response = await fetch(`${LMS_API_BASE_URL}/instructor/curriculum/weeks/${week}`, {
+  const query = courseId ? `?courseId=${encodeURIComponent(courseId)}` : '';
+  const response = await fetch(`${LMS_API_BASE_URL}/instructor/curriculum/weeks/${week}${query}`, {
     method: 'DELETE',
     headers: {
       Authorization: `Bearer ${accessToken}`,
diff --git a/src/pages/curriculum/CurriculumPage.tsx b/src/pages/curriculum/CurriculumPage.tsx
index 8ada6b8..675a949 100644
--- a/src/pages/curriculum/CurriculumPage.tsx
+++ b/src/pages/curriculum/CurriculumPage.tsx
@@ -156,7 +156,7 @@ export function CurriculumPage({ session, selectedCourseId }: { session: AuthSes
   const primaryActionDisabled = saving || !selectedWeek || (activeTab === 'apply' && !selectedGroup);
   const selectedTopics = activeTab === 'edit' ? draftTopics : selectedWeek?.topics ?? [];
   const selectedTopicDetails = activeTab === 'edit' ? draftTopicDetails : selectedWeek?.detail.topicDetails ?? [];
-  const selectedWeekDeletable = Boolean(selectedWeek?.tags.includes('추가'));
+  const selectedWeekDeletable = selectedWeek?.canDelete === true;
   const tagOptionLabels = useMemo(() => new Set(tagOptions.map((option) => option.label)), [tagOptions]);
   const selectedTagLabel = tagOptionLabels.has(draftTagLabel)
     ? draftTagLabel
@@ -580,7 +580,7 @@ export function CurriculumPage({ session, selectedCourseId }: { session: AuthSes
     setError(null);
 
     try {
-      const payload = await deleteInstructorCurriculumWeek(session.accessToken, selectedWeek.week);
+      const payload = await deleteInstructorCurriculumWeek(session.accessToken, selectedWeek.week, selectedCourseId);
       applyPayload(payload, { selectProgress: true });
       showToast({
         title: '주차가 삭제되었습니다.',
diff --git a/src/pages/login/LoginPage.tsx b/src/pages/login/LoginPage.tsx
index 9fb8860..80612c5 100644
--- a/src/pages/login/LoginPage.tsx
+++ b/src/pages/login/LoginPage.tsx
@@ -135,9 +135,6 @@ export function LoginPage({ onLogin }: LoginPageProps) {
                 />
                 아이디 기억
               </label>
-              <button className="text-[12px] font-extrabold text-[#4f46e5]" type="button">
-                비밀번호를 잊으셨나요?
-              </button>
             </div>
 
             <button
diff --git a/src/pages/platforms/PlatformsPage.tsx b/src/pages/platforms/PlatformsPage.tsx
index 93a8c01..ac0caff 100644
--- a/src/pages/platforms/PlatformsPage.tsx
+++ b/src/pages/platforms/PlatformsPage.tsx
@@ -1,6 +1,6 @@
 import { useEffect, useMemo, useState, type ReactNode } from 'react';
 import { createPortal } from 'react-dom';
-import { Activity, Battery, Car, CircleAlert, KeyRound, Loader2, Plus, RefreshCw, Search, Settings, ShieldAlert, Timer, Trash2, Users, X, type LucideIcon } from 'lucide-react';
+import { Activity, Car, CircleAlert, KeyRound, Loader2, Plus, RefreshCw, Search, Settings, ShieldAlert, Timer, Trash2, Users, X, type LucideIcon } from 'lucide-react';
 import { ConfirmDialog } from '../../components/ConfirmDialog';
 import { PageHeader } from '../../components/PageHeader';
 import { PaginationBar } from '../../components/PaginationBar';
@@ -435,7 +435,7 @@ export function PlatformsPage({ session }: { session: AuthSession }) {
         <div className="flex flex-wrap items-center justify-between gap-3 border-b border-[#cbd5e1] px-4 py-3">
           <div>
             <h2 className="text-[15px] font-black text-[#111827]">플랫폼 리스트</h2>
-            <p className="mt-1 text-[12px] font-bold text-[#64748b]">배터리, 가동 시간, 할당 그룹 상태 조회</p>
+            <p className="mt-1 text-[12px] font-bold text-[#64748b]">가동 시간, 할당 그룹 상태 조회</p>
           </div>
 
           <label className="flex h-9 w-full max-w-[260px] items-center gap-2 rounded-md border border-[#d1d9e6] bg-white px-3 text-[#94a3b8]">
@@ -446,12 +446,11 @@ export function PlatformsPage({ session }: { session: AuthSession }) {
 
         <div className="overflow-x-auto">
           <div className="xl:min-w-[1020px]">
-            <div className="hidden select-none gap-4 grid-cols-[44px_200px_110px_92px_90px_110px_150px_184px] items-center border-b border-[#cbd5e1] bg-[#f8fafc] px-4 py-3 text-center text-[11px] font-bold text-[#64748b] xl:grid">
+            <div className="hidden select-none gap-4 grid-cols-[44px_200px_110px_92px_110px_150px_184px] items-center border-b border-[#cbd5e1] bg-[#f8fafc] px-4 py-3 text-center text-[11px] font-bold text-[#64748b] xl:grid">
               <span>No.</span>
               <span>플랫폼</span>
               <span>연결</span>
               <span>상태</span>
-              <span>배터리</span>
               <span>가동 시간</span>
               <span>할당</span>
               <span>관리</span>
@@ -469,7 +468,7 @@ export function PlatformsPage({ session }: { session: AuthSession }) {
                 </div>
               ) : pagedPlatforms.length > 0 ? (
                 pagedPlatforms.map((platform, index) => (
-                  <article className="grid select-none gap-4 px-4 py-4 xl:grid-cols-[44px_200px_110px_92px_90px_110px_150px_184px] xl:items-center" key={platform.id}>
+                  <article className="grid select-none gap-4 px-4 py-4 xl:grid-cols-[44px_200px_110px_92px_110px_150px_184px] xl:items-center" key={platform.id}>
                     <div className="text-center">
                       <p className="mb-2 text-[11px] font-bold text-[#94a3b8] xl:hidden">번호</p>
                       <span className="text-[13px] font-bold text-[#64748b]">{filteredPlatforms.length - ((page - 1) * pageSize + index)}</span>
@@ -504,19 +503,6 @@ export function PlatformsPage({ session }: { session: AuthSession }) {
                       <span className={`rounded px-1.5 py-0.5 text-[11px] font-bold ${statusTone(platform.status)}`}>{platform.status}</span>
                     </div>
 
-                    <div>
-                      <div className="mb-2 flex items-center justify-between text-[12px] font-bold text-[#475569] xl:justify-center">
-                        <span className="inline-flex items-center gap-1.5 xl:hidden">
-                          <Battery size={13} aria-hidden="true" />
-                          배터리
-                        </span>
-                        <span className="font-semibold text-[#4f46e5]">{platform.battery}%</span>
-                      </div>
-                      <div className="h-1.5 overflow-hidden rounded-full bg-[#dbe3ef]">
-                        <div className="h-full rounded-full bg-[#4f46e5]" style={{ width: `${platform.battery}%` }} />
-                      </div>
-                    </div>
-
                     <PlatformMeta icon={Timer} label="가동 시간" value={platform.uptime} />
                     <div className="text-center">
                       <p className="mb-2 text-[11px] font-bold text-[#94a3b8] xl:hidden">할당</p>