feat: Add CLI table formatting and remove unused inspection methods

- Enhanced CLI output with table formatting for better readability of account and transaction data
- Added new commands to list accounts and view their sync status
- Added new commands to inspect transaction information and cache status
- Cleaned up internal code by removing unused trait methods and implementations
- Updated documentation with examples of new CLI commands

This improves the user experience with clearer CLI output and new inspection capabilities while maintaining code quality.

README.md

@@ -44,11 +44,17 @@ cargo run -p banks2ff -- sync gocardless firefly --start 2023-01-01 --end 2023-0
 cargo run -p banks2ff -- sources
 cargo run -p banks2ff -- destinations
 
+# Inspect accounts
+cargo run -p banks2ff -- accounts list
+cargo run -p banks2ff -- accounts status
+
 # Manage account links
 cargo run -p banks2ff -- accounts link list
 cargo run -p banks2ff -- accounts link create <source_account> <dest_account>
 
-# Additional inspection commands available in future releases
+# Inspect transactions and cache
+cargo run -p banks2ff -- transactions list <account_id>
+cargo run -p banks2ff -- transactions cache-status
 ```
 
 ## 🖥️ CLI Structure
@@ -58,9 +64,12 @@ Banks2FF uses a structured command-line interface with the following commands:
 - `sync <SOURCE> <DESTINATION>` - Synchronize transactions between source and destination
 - `sources` - List all available source types
 - `destinations` - List all available destination types
+- `accounts list` - List all discovered accounts
+- `accounts status` - Show sync status for all accounts
 - `accounts link` - Manage account links between sources and destinations
-
-Additional inspection commands (accounts list/status, transactions, status) will be available in future releases.
+- `transactions list <account_id>` - Show transaction information for a specific account
+- `transactions cache-status` - Display cache status and statistics
+- `transactions clear-cache` - Clear transaction cache (implementation pending)
 
 Use `cargo run -p banks2ff -- --help` for detailed command information.