diff --git a/THIRD_PARTY_LICENSES.md b/THIRD_PARTY_LICENSES.md
index 106c762..f9411a6 100644
--- a/THIRD_PARTY_LICENSES.md
+++ b/THIRD_PARTY_LICENSES.md
@@ -13,7 +13,6 @@ The following UI components in `src/components/ui/` are derived from [shadcn/ui]
 - `popover.tsx`
 - `select.tsx`
 - `separator.tsx`
-- `slider.tsx`
 - `switch.tsx`
 - `tooltip.tsx`
 
diff --git a/docs/2025-10-18_MODULAR_STRUCTURE.md b/docs/2025-10-18_MODULAR_STRUCTURE.md
index 513214c..344772a 100644
--- a/docs/2025-10-18_MODULAR_STRUCTURE.md
+++ b/docs/2025-10-18_MODULAR_STRUCTURE.md
@@ -25,7 +25,6 @@ src/
 │       ├── popover.tsx
 │       ├── select.tsx
 │       ├── separator.tsx
-│       ├── slider.tsx
 │       ├── switch.tsx
 │       └── tooltip.tsx
 ├── hooks/                     # Custom React hooks (TypeScript)
diff --git a/package.json b/package.json
index 3f848fe..d49a9d6 100644
--- a/package.json
+++ b/package.json
@@ -3,34 +3,23 @@
   "version": "0.1.1",
   "private": true,
   "dependencies": {
-    "@hookform/resolvers": "^5.2.2",
     "@radix-ui/react-label": "^2.1.8",
     "@radix-ui/react-popover": "^1.1.15",
     "@radix-ui/react-select": "^2.2.6",
     "@radix-ui/react-separator": "^1.1.8",
-    "@radix-ui/react-slider": "^1.3.6",
     "@radix-ui/react-slot": "^1.2.4",
     "@radix-ui/react-switch": "^1.2.6",
     "@radix-ui/react-tooltip": "^1.2.8",
-    "@testing-library/dom": "^10.4.1",
-    "@testing-library/jest-dom": "^6.8.0",
-    "@testing-library/react": "^16.3.0",
-    "@testing-library/user-event": "^13.5.0",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "lucide-react": "^0.554.0",
-    "npx": "^10.2.2",
     "react": "^19.1.1",
     "react-dom": "^19.1.1",
-    "react-hook-form": "^7.66.1",
     "react-is": "^19.2.0",
     "react-scripts": "5.0.1",
     "recharts": "^3.3.0",
     "tailwind-merge": "^3.4.0",
-    "tailwindcss-animate": "^1.0.7",
-    "tw-animate-css": "^1.4.0",
-    "web-vitals": "^2.1.4",
-    "zod": "^4.1.13"
+    "tailwindcss-animate": "^1.0.7"
   },
   "scripts": {
     "start": "cross-env HOST=0.0.0.0 BROWSER=none CHOKIDAR_USEPOLLING=true FAST_REFRESH=false react-scripts start",
@@ -59,6 +48,10 @@
   },
   "devDependencies": {
     "@hint/configuration-web-recommended": "^8.2.24",
+    "@testing-library/dom": "^10.4.1",
+    "@testing-library/jest-dom": "^6.9.1",
+    "@testing-library/react": "^16.3.0",
+    "@testing-library/user-event": "^14.6.1",
     "@types/node": "^24.10.1",
     "@types/react": "^19.2.7",
     "@types/react-dom": "^19.2.3",
@@ -68,6 +61,6 @@
     "postcss": "^8.5.6",
     "puppeteer": "^24.27.0",
     "tailwindcss": "^3.4.18",
-    "typescript": "^4.9.5"
+    "typescript": "^5.9.3"
   }
 }
diff --git a/src/components/deviation-list.tsx b/src/components/deviation-list.tsx
index 7308f85..696f88a 100644
--- a/src/components/deviation-list.tsx
+++ b/src/components/deviation-list.tsx
@@ -18,7 +18,7 @@ import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '.
 import { Switch } from './ui/switch';
 import { Label } from './ui/label';
 import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from './ui/tooltip';
-import { Trash2, X } from 'lucide-react';
+import { X } from 'lucide-react';
 
 const DeviationList = ({
   deviations,
diff --git a/src/components/ui/README.md b/src/components/ui/README.md
index 541cbc0..1759262 100644
--- a/src/components/ui/README.md
+++ b/src/components/ui/README.md
@@ -14,7 +14,6 @@ The following components are from [shadcn/ui](https://ui.shadcn.com) (MIT Licens
 - **`popover.tsx`** - Popover/dropdown container
 - **`select.tsx`** - Select/dropdown menu
 - **`separator.tsx`** - Horizontal/vertical divider
-- **`slider.tsx`** - Range slider input
 - **`switch.tsx`** - Toggle switch
 - **`tooltip.tsx`** - Tooltip wrapper
 
diff --git a/src/components/ui/form-time-input.tsx b/src/components/ui/form-time-input.tsx
index 514156c..e561b10 100644
--- a/src/components/ui/form-time-input.tsx
+++ b/src/components/ui/form-time-input.tsx
@@ -28,7 +28,6 @@ const FormTimeInput = React.forwardRef<HTMLInputElement, TimeInputProps>(
     const [displayValue, setDisplayValue] = React.useState(value)
     const [isPickerOpen, setIsPickerOpen] = React.useState(false)
     const [showError, setShowError] = React.useState(false)
-    const [touched, setTouched] = React.useState(false)
     const containerRef = React.useRef<HTMLDivElement>(null)
     const [pickerHours, pickerMinutes] = (value || "00:00").split(':').map(Number)
 
@@ -42,7 +41,6 @@ const FormTimeInput = React.forwardRef<HTMLInputElement, TimeInputProps>(
 
     const handleBlur = (e: React.FocusEvent<HTMLInputElement>) => {
       const inputValue = e.target.value.trim()
-      setTouched(true)
       setShowError(false)
 
       if (inputValue === '') {
diff --git a/src/components/ui/slider.tsx b/src/components/ui/slider.tsx
deleted file mode 100644
index a48b2c2..0000000
--- a/src/components/ui/slider.tsx
+++ /dev/null
@@ -1,26 +0,0 @@
-import * as React from "react"
-import * as SliderPrimitive from "@radix-ui/react-slider"
-
-import { cn } from "../../lib/utils"
-
-const Slider = React.forwardRef<
-  React.ElementRef<typeof SliderPrimitive.Root>,
-  React.ComponentPropsWithoutRef<typeof SliderPrimitive.Root>
->(({ className, ...props }, ref) => (
-  <SliderPrimitive.Root
-    ref={ref}
-    className={cn(
-      "relative flex w-full touch-none select-none items-center",
-      className
-    )}
-    {...props}
-  >
-    <SliderPrimitive.Track className="relative h-1.5 w-full grow overflow-hidden rounded-full bg-primary/20">
-      <SliderPrimitive.Range className="absolute h-full bg-primary" />
-    </SliderPrimitive.Track>
-    <SliderPrimitive.Thumb className="block h-4 w-4 rounded-full border border-primary/50 bg-background shadow transition-colors focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:pointer-events-none disabled:opacity-50" />
-  </SliderPrimitive.Root>
-))
-Slider.displayName = SliderPrimitive.Root.displayName
-
-export { Slider }