Refactor verdict handling and editor state management

- Removed the Escalate variant from the Verdict enum and associated parsing logic.
- Cleaned up the EditorState struct by removing unused fields and methods.
- Simplified MCP connection functions by removing unnecessary disconnect and handle dismiss functions.
- Added tick count to MiscState for managing UI updates during processing.
- Updated chat and status views to display a spinner during AI processing using the tick count.
- Created a README.md file to document the project, its features, architecture, usage, key bindings, agent modes, security measures, installation instructions, and configuration details.

src/app/state/misc.rs

@@ -236,6 +236,7 @@ pub struct MiscState {
     pub selected_index: usize,
     pub editor: Option<super::super::mode::editor::EditorState>,
     pub api_connected: bool,
+    pub tick_count: u64,
 }
 
 impl MiscState {
@@ -252,6 +253,7 @@ impl MiscState {
             selected_index: 0,
             editor: None,
             api_connected: false,
+            tick_count: 0,
         }
     }