feat: Add Interactive TUI mode with scrollable command output

- Implement complete TUI framework using ratatui 0.28 + crossterm 0.28
- Add Interactive command to CLI with 6 menu categories
- Implement real PKCS#11 command execution for info and list-slots
- Add comprehensive scrolling system with PageUp/PageDown support
- Fix scrolling logic consistency between render and scroll methods
- Disable tracing for interactive mode to prevent TUI corruption
- Add demo script and comprehensive documentation
- Support both SoftHSM2 and Kryoptic HSM providers

TUI Features:
- Menu-driven interface with hierarchical navigation
- Real-time status feedback with emojis and progress indicators
- Scrollable command output for large results (tested with 146+ lines)
- Graceful error handling and recovery
- Clean terminal management and proper cleanup

Architecture:
- crates/rust-hsm-cli/src/commands/interactive.rs (765 lines)
- Modular command execution with real PKCS#11 integration
- Consistent error handling and status management
- Memory-safe PKCS#11 lifecycle (initialize/finalize)

Tested extensively in Docker with multiple HSM providers and various
output sizes. Foundation ready for expanding to full PKCS#11 functionality.

Author: testingapisname

crates/rust-hsm-cli/Cargo.toml

@@ -17,6 +17,8 @@ toml = "0.8"
 dirs = "5.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
+ratatui = "0.28"
+crossterm = "0.28"
 
 [dev-dependencies]
 tempfile = "3.13"

crates/rust-hsm-cli/src/cli.rs

@@ -641,4 +641,11 @@ pub enum Commands {
         #[arg(long, default_value = "text")]
         format: String,
     },
+
+    /// Launch interactive terminal interface for guided HSM operations
+    Interactive {
+        /// Token label (uses config default if not specified)
+        #[arg(long)]
+        label: Option<String>,
+    },
 }