Refactor view modules for improved readability and consistency

- Updated markdown rendering logic to use more concise methods for obtaining vector lengths.
- Changed review status display to use the correct flag from settings.
- Cleaned up sidebar rendering code for better formatting and readability.
- Enhanced status bar rendering with improved string formatting and consistent style application.
- Refined workflow panel rendering, ensuring consistent style usage and improved readability.
- Added architecture overview and detailed documentation for backend, data, dependencies, and frontend structures.

src/model/msglog/schema.rs

@@ -1,7 +1,6 @@
 //! `SQLite` schema definition for the message log database.
-
-use rusqlite::Connection;
 use anyhow::Result;
+use rusqlite::Connection;
 
 /// Create the message log's tables and indexes if they don't already
 /// exist (`messages`, `archives`, `blobs`).
@@ -51,7 +50,7 @@ pub fn init_schema(conn: &Connection) -> Result<()> {
             created_at INTEGER NOT NULL,
             UNIQUE(session_id, blob_key)
         );
-        "
+        ",
     )?;
     Ok(())
 }