Modern TUI with Enhanced Protocol Hierarchy Interface

Major Features:
- Complete modern TUI interface with three focused views
- Enhanced multi-column layout: Source | Proto | Destination | Extended | Frame Type | Metrics
- Simplified navigation with 1/2/3 hotkeys instead of F1/F2/F3
- Protocol hierarchy: Transport (TCP/UDP) → Extended (CH10/PTP) → Frame Types
- Classic TUI preserved with --classic flag

Views Implemented:
1. Flow Analysis View: Enhanced multi-column flow overview with protocol detection
2. Packet Decoder View: Three-panel deep inspection (Flows | Frames | Fields)
3. Statistical Analysis View: Four analysis modes with timing and quality metrics

Technical Improvements:
- Left-aligned text columns with IP:port precision
- Transport protocol separation from extended protocols
- Frame type identification (CH10-Data, TMATS, PTP Sync)
- Cross-view communication with persistent flow selection
- Context-sensitive help and status bars
- Comprehensive error handling with console fallback

README.md

@@ -20,9 +20,12 @@ python streamlens.py --gui --pcap file.pcap
 # GUI mode only (then open file via File menu)
 python streamlens.py --gui
 
-# Analyze pcap file with TUI (flows sorted by largest sigma outliers)
+# Analyze pcap file with modern TUI (Flow Analysis, Packet Decoder, Statistical Analysis views)
 python streamlens.py --pcap file.pcap
 
+# Use classic TUI interface instead of modern (preserves original layout)
+python streamlens.py --pcap file.pcap --classic
+
 # Live capture with real-time statistics
 python streamlens.py --live --interface eth0
 
@@ -62,13 +65,37 @@ python streamlens.py --live --filter "port 319 or port 320"
 - **Threading Safety**: Main-thread plot creation eliminates Qt threading violations
 - **No Floating Windows**: All plots stay embedded in the grid interface
 
-### Enhanced TUI Interface
-- **Three-Panel Layout**: Flows list (top-left), flow details (top-right), timing visualization (bottom)
+### 🖥️ Modern TUI Interface (Default) with Three Focused Views
+- **1: Flow Analysis View**: Enhanced multi-column flow overview with protocol hierarchy
+  - **Source | Proto | Destination | Extended | Frame Type | Metrics** layout
+  - Transport protocols (TCP, UDP, ICMP, IGMP) clearly separated from extended protocols
+  - Extended protocol column for specialized protocols (CH10, PTP, IENA, NTP)
+  - Frame type column showing most common frame type per flow (CH10-Data, TMATS, PTP Sync)
+  - Left-aligned text columns with IP:port format for precise endpoint identification
+  - Performance rankings by packet count, outliers, and enhanced decoder availability
+- **2: Packet Decoder View**: Deep protocol inspection and field extraction
+  - Three-panel layout: Enhanced Flows | Frame Analysis | Field Inspector
+  - Real-time decoded field display with tree-view navigation
+  - Tab-based interface switching with comprehensive field value inspection
+- **3: Statistical Analysis View**: Timing analysis, outliers, and quality metrics
+  - Four analysis modes: Overview, Outlier Analysis, Quality Metrics, Timing Analysis
+  - Performance ranking with health metrics and network consistency indicators
+  - Detailed outlier breakdown with sigma deviation calculations
+- **Modern Navigation**: 1/2/3 view switching with context-sensitive help and status bars
+- **Enhanced Protocol Support**: Specialized views for Chapter 10, PTP, IENA with quality indicators
+- **Cross-View Communication**: Selected flows persist across view switches for comprehensive analysis
+
+### 📊 Classic TUI Interface (--classic flag) with Professional Table Layout
+- **Optimized Three-Panel Layout**: Flows list (70% width), flow details (30% width), optional timeline (bottom)
+- **Professional Table Formatting**: Right-aligned numeric columns (#Frames, Bytes, ΔT Avg) with proper spacing
+- **Comprehensive Flow Display**: Shows Src:Port, Dst:Port, Transport Protocol, Traffic Classification, and Encoding
+- **Transport Layer Analysis**: Displays TCP, UDP, ICMP, IGMP protocols with port information
+- **Traffic Classification**: Identifies Unicast, Multicast, and Broadcast traffic patterns
+- **Hierarchical Frame Types**: Expandable tree view showing packet type breakdowns with aligned sub-rows
+- **Magnitude Indicators**: Consistent byte formatting (1.2M, 428K, 1234B) with right alignment
 - **Sigma-Based Flow Sorting**: Flows automatically sorted by largest outlier sigma deviation
 - **Real-time Navigation**: Arrow keys to navigate between flows with instant detail updates
-- **Protocol-aware Display**: Shows detected protocols in flow list and details
 - **Smart Protocol Detection**: Prioritizes specialized protocols (Chapter 10, PTP, IENA) over generic ones
-- **Detailed Outlier Analysis**: Individual rows showing frame numbers and exact time deltas for outlier packets
 - **Visual Timeline**: ASCII timeline showing frame timing deviations with outlier highlighting
 - **Live Statistics**: Real-time running averages and outlier detection during capture
 
@@ -140,19 +167,55 @@ Generate detailed outlier reports with `--report` flag showing frame-by-frame si
 - **Status Bar**: Loading progress and operation feedback
 
 ### Workflow
-1. **Launch GUI with PCAP**: `python streamlens.py --gui --pcap file.pcap` (recommended)
-2. **Alternative Launch**: `python streamlens.py --gui`, then File → Open PCAP...
-3. **Immediate Analysis**: Flow table displays instantly with all flow data and wide embedded plots
-4. **Optimized Display**: Content-fitted columns, 25% taller rows, and full-width utilization
-5. **Wide Plot Visualization**: Chapter 10 flows show detailed signal plots with minimal margins
-6. **Browse Flows**: View flows in the dark-themed table (Chapter 10 flows highlighted in modern blue)
-7. **Analyze Details**: Select flows to view detailed information in the dark-themed bottom panel
-8. **Adjust Threshold**: Use toolbar spinner to change outlier detection sensitivity
-9. **Multi-Flow Comparison**: Compare signals across different flows in the same optimized view
+
+#### GUI Mode (Recommended)
+1. **Launch GUI with PCAP**: `python streamlens.py --gui --pcap file.pcap`
+2. **Immediate Analysis**: Flow table displays instantly with all flow data and wide embedded plots
+3. **Optimized Display**: Content-fitted columns, 25% taller rows, and full-width utilization
+4. **Wide Plot Visualization**: Chapter 10 flows show detailed signal plots with minimal margins
+5. **Browse Flows**: View flows in the dark-themed table (Chapter 10 flows highlighted in modern blue)
+6. **Analyze Details**: Select flows to view detailed information in the dark-themed bottom panel
+7. **Adjust Threshold**: Use toolbar spinner to change outlier detection sensitivity
+
+#### Modern TUI Mode (Default)
+1. **Launch Modern TUI**: `python streamlens.py --pcap file.pcap`
+2. **Flow Analysis View (1)**: Visual flow overview with protocol detection and performance ranking
+3. **Packet Decoder View (2)**: Deep packet inspection with three-panel layout for field analysis
+4. **Statistical Analysis View (3)**: Comprehensive timing analysis and outlier detection
+5. **View Navigation**: Use 1/2/3 to switch between analysis perspectives
+6. **Context-Sensitive Help**: Press H for detailed help overlay with all controls
+7. **Enhanced Protocol Analysis**: Specialized displays for Chapter 10, PTP, IENA protocols
+
+#### Classic TUI Mode (--classic flag)
+1. **Launch Classic TUI**: `python streamlens.py --pcap file.pcap --classic`
+2. **Professional Table View**: Right-aligned numeric columns with transport protocol and classification
+3. **Navigate Flows**: Use ↑↓ to browse flows sorted by sigma deviation
+4. **Expand Details**: Use → to show frame type breakdowns with hierarchical display
+5. **Signal Visualization**: Press 'v' on Chapter 10 flows to generate signal plot files
+6. **Timeline Analysis**: Press 't' to toggle timing visualization panel
+7. **Live Monitoring**: Real-time statistics updates during network capture
 
 ## TUI Controls
 
-- **↑↓**: Navigate between flows in main view
+### Modern TUI Controls (Default)
+- **1**: Switch to Flow Analysis View (enhanced multi-column layout)
+- **2**: Switch to Packet Decoder View (three-panel inspection)
+- **3**: Switch to Statistical Analysis View (timing and quality analysis)
+- **H**: Toggle comprehensive help overlay
+- **↑↓**: Navigate items in current view
+- **Enter**: Select flow/packet for detailed analysis
+- **Tab**: Switch panels (when available)
+- **V**: Visualize signals (Flow Analysis)
+- **D**: Deep decode selected flow
+- **E**: Export decoded data
+- **R**: Refresh statistics
+- **O**: Show outlier details
+- **Q**: Quit application
+
+### Classic TUI Controls (--classic flag)
+- **↑↓**: Navigate between flows and frame types in main view
+- **→**: Expand flow to show frame type breakdowns
+- **←**: Collapse flow details
 - **v**: Visualize Chapter 10 signals for selected flow (saves plot files)
 - **t**: Toggle timeline panel on/off
 - **d**: Switch to frame dissection view  
@@ -194,9 +257,14 @@ streamlens/
 │   │   ├── main_window.py         # PySide6 main window with docking system
 │   │   └── dock_panels.py         # Dockable panel implementations (flow list, plots, details)
 │   ├── tui/                        # Text User Interface
-│   │   ├── interface.py           # Main TUI controller
+│   │   ├── interface.py           # Classic TUI controller
+│   │   ├── modern_interface.py    # Modern TUI with three-view interface
 │   │   ├── navigation.py          # Navigation handling
-│   │   └── panels/                # UI panel components
+│   │   ├── modern_views/          # Modern TUI view controllers
+│   │   │   ├── flow_analysis.py   # Flow Analysis View (F1)
+│   │   │   ├── packet_decoder.py  # Packet Decoder View (F2)
+│   │   │   └── statistical_analysis.py # Statistical Analysis View (F3)
+│   │   └── panels/                # Classic TUI panel components
 │   │       ├── flow_list.py       # Flow list panel
 │   │       ├── detail_panel.py    # Flow details panel
 │   │       └── timeline.py        # Timeline visualization panel