fix(ui): Header branding, sidebar collapse, and layout fitting 1024x600

- Header: Change 'Data Station' to 'RTU', use TCK logo, fix sizing
- Sidebar: MENU text now clickable to collapse/expand
- RainfallView: Fit 1024x600 without scrolling
- GraphView: Fit 1024x600 screen

.planning/quick/3-fix-ui-feedback-header-navigation-and-la/3-SUMMARY.md

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+# Quick Task 3 Summary - UI Fixes
+
+**Task:** Fix UI feedback: header, navigation, and layout issues  
+**Date:** 2026-03-13  
+**Status:** Complete
+
+---
+
+## Completed
+
+### Task 1: Fix Header branding and sizing
+- Changed "Data Station" text to "RTU"
+- Added TCK logo from `/logo/[LOGO] TCK.svg`
+- Made all header items (Solar, Battery, Time, Date, Station, etc.) same size with consistent padding
+- Reduced header height to fit better
+
+### Task 2: Fix Sidebar collapse behavior
+- Made MENU text clickable (not just the chevron icon)
+- Clicking MENU now toggles sidebar collapse/expand
+
+### Task 3: Fix RainfallView layout
+- Removed extra space before title
+- Reduced padding to fit 1024x600 screen
+- Made Last Update section visible without scrolling
+
+### Task 4: Fix GraphView layout
+- Reduced padding and spacing
+- Made chart smaller to fit 1024x600
+- Reduced stat cards size
+
+---
+
+## Files Modified
+
+- `sample_interface/src/app/components/Header.tsx`
+- `sample_interface/src/app/components/Sidebar.tsx`
+- `sample_interface/src/app/components/views/RainfallView.tsx`
+- `sample_interface/src/app/components/views/GraphView.tsx`