feat(ui): improve lesson cards and theme button, optimize dependency checks

UI Improvements:
- Highlight classroom number in lesson cards using Badge component
  * Applied to both mobile and desktop views
  * Improved visual distinction for classroom information

- Fix theme switcher button layout on mobile
  * Add "Тема" text label inside the button (visible on all devices)
  * Remove redundant absolute positioned span below button
  * Fix text overflow issues on mobile devices
  * Improve button isolation to prevent text escaping

Performance Optimization:
- Optimize dependency installation check in deployment scripts
  * Replace timestamp-based check with content hash comparison
  * Use MD5 hash of package.json and lock files to detect real changes
  * Save hash after successful installation for future comparisons
  * Significantly reduce unnecessary npm install runs during updates
  * Add .dependencies.hash to .gitignore

Files changed:
- src/widgets/schedule/lesson.tsx - Added Badge for classroom
- src/features/theme-switch/index.tsx - Added text label to button
- src/widgets/navbar/index.tsx - Improved button container structure
- src/pages/index.tsx - Removed redundant theme label span
- scripts/manage.sh - Optimized dependency check logic
- scripts/install.sh - Optimized dependency check logic
- .gitignore - Added .dependencies.hash exclusion

src/features/theme-switch/index.tsx

@@ -16,25 +16,29 @@ export function ThemeSwitcher() {
   const { setTheme } = useTheme()
 
   return (
-    <DropdownMenu>
-      <DropdownMenuTrigger asChild>
-        <Button variant="outline" size="icon" className="min-w-[44px] min-h-[44px] md:min-w-0 md:min-h-0">
-          <Sun className="h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
-          <Moon className="absolute h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
-          <span className="sr-only">Toggle theme</span>
-        </Button>
-      </DropdownMenuTrigger>
-      <DropdownMenuContent align="end">
-        <DropdownMenuItem onClick={() => setTheme('light')}>
-          Светлая тема
-        </DropdownMenuItem>
-        <DropdownMenuItem onClick={() => setTheme('dark')}>
-          Темная тема
-        </DropdownMenuItem>
-        <DropdownMenuItem onClick={() => setTheme('system')}>
-          Как в системе
-        </DropdownMenuItem>
-      </DropdownMenuContent>
-    </DropdownMenu>
+    <div className="flex-shrink-0">
+      <DropdownMenu>
+        <DropdownMenuTrigger asChild>
+          <Button variant="outline" className="min-h-[44px] md:min-h-0 flex-shrink-0 gap-2 px-3 whitespace-nowrap">
+            <div className="relative h-[1.2rem] w-[1.2rem] flex-shrink-0">
+              <Sun className="h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0 absolute inset-0" />
+              <Moon className="h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100 absolute inset-0" />
+            </div>
+            <span className="flex-shrink-0">Тема</span>
+          </Button>
+        </DropdownMenuTrigger>
+        <DropdownMenuContent align="end" className="min-w-[140px] whitespace-nowrap">
+          <DropdownMenuItem onClick={() => setTheme('light')} className="whitespace-nowrap">
+            Светлая тема
+          </DropdownMenuItem>
+          <DropdownMenuItem onClick={() => setTheme('dark')} className="whitespace-nowrap">
+            Темная тема
+          </DropdownMenuItem>
+          <DropdownMenuItem onClick={() => setTheme('system')} className="whitespace-nowrap">
+            Как в системе
+          </DropdownMenuItem>
+        </DropdownMenuContent>
+      </DropdownMenu>
+    </div>
   )
 }

src/pages/index.tsx

@@ -162,13 +162,10 @@ export default function HomePage({ groups, groupsByCourse }: HomePageProps) {
               </Button>
             </div>
             <div
-              className="relative stagger-card"
+              className="stagger-card"
               style={{ animationDelay: `${0.15 + courseOffsets.totalGroups * 0.04 + 0.08}s` } as React.CSSProperties}
             >
               <ThemeSwitcher />
-              <span className="absolute -bottom-5 left-1/2 transform -translate-x-1/2 text-xs text-muted-foreground whitespace-nowrap sm:hidden">
-                Тема
-              </span>
             </div>
             <div
               className="stagger-card"

src/widgets/navbar/index.tsx

@@ -55,10 +55,11 @@ export function NavBar({ cacheAvailableFor, groups }: {
               </li>
             </ul>
           </div>
-          <div className='flex gap-1 min-[500px]:gap-2 flex-shrink-0'>
-            <Link href={GITHUB_REPO_URL} target='_blank' rel='nofollower noreferrer'>
-              <Button variant='outline' size='icon' className="min-w-[44px] min-h-[44px] md:min-w-0 md:min-h-0" tabIndex={-1}>
+          <div className='flex gap-1 min-[500px]:gap-2 flex-shrink-0 items-center flex-nowrap'>
+            <Link href={GITHUB_REPO_URL} target='_blank' rel='nofollower noreferrer' className="flex-shrink-0">
+              <Button variant='outline' size='icon' className="min-w-[44px] min-h-[44px] md:min-w-0 md:min-h-0 flex-shrink-0" tabIndex={-1}>
                 <FaGithub />
+                <span className="sr-only">GitHub</span>
               </Button>
             </Link>
             <ThemeSwitcher />

src/widgets/schedule/lesson.tsx

@@ -126,7 +126,10 @@ export function Lesson({ lesson, width = 350, animationDelay }: {
         {!isCancelled && ('place' in lesson && lesson.place) && (
           <div className='flex flex-col text-muted-foreground text-xs break-words mt-3 md:hidden'>
             <span className='flex items-center gap-2'><BsFillGeoAltFill /> <span className="break-words">{lesson.place.address}</span></span>
-            <span className='font-bold flex items-center gap-2'><RiGroup2Fill /> {lesson.place.classroom}</span>
+            <span className='flex items-center gap-2 mt-1'>
+              <RiGroup2Fill />
+              <Badge variant="outline" className="font-bold text-xs">{lesson.place.classroom}</Badge>
+            </span>
           </div>
         )}
       </CardContent>
@@ -135,7 +138,10 @@ export function Lesson({ lesson, width = 350, animationDelay }: {
           {('place' in lesson && lesson.place) ? (
             <div className='hidden md:flex flex-col text-muted-foreground text-xs break-words'>
               <span className='flex items-center gap-2'><BsFillGeoAltFill /> <span className="break-words">{lesson.place.address}</span></span>
-              <span className='font-bold flex items-center gap-2'><RiGroup2Fill /> {lesson.place.classroom}</span>
+              <span className='flex items-center gap-2 mt-1'>
+                <RiGroup2Fill />
+                <Badge variant="outline" className="font-bold text-xs">{lesson.place.classroom}</Badge>
+              </span>
             </div>
           ) : <span />}
           {Boolean(lesson.resources.length) && (