📝 docs(lib): remove gmail query syntax and troubleshooting

- remove gmail query syntax
- remove performance & limits
- remove logging
- remove security considerations
- remove troubleshooting
- remove see also

docs/lib.md

@@ -231,105 +231,3 @@ async fn main() -> cull_gmail::Result<()> {
 }
 ```
 
-## Gmail Query Syntax
-
-The library supports Gmail's search syntax for message queries:
-
-```rust path=null start=null
-// Date-based queries
-client.set_query("older_than:1y");           // Older than 1 year
-client.set_query("newer_than:30d");          // Newer than 30 days
-client.set_query("after:2023/1/1");          // After specific date
-
-// Label-based queries
-client.set_query("label:promotions");        // Has promotions label
-client.set_query("-label:important");        // Does NOT have important label
-
-// Content queries
-client.set_query("subject:newsletter");      // Subject contains "newsletter"
-client.set_query("from:noreply@example.com"); // From specific sender
-
-// Combined queries
-client.set_query("label:promotions older_than:6m -is:starred");
-```
-
-## Performance & Limits
-
-### Pagination
-
-- Default page size: 200 messages
-- Use `client.set_max_results(n)` to adjust
-- Use `client.get_messages(0)` to get all pages
-- Use `client.get_messages(n)` to limit to n pages
-
-### Rate Limits
-
-- The library uses the official `google-gmail1` crate
-- Built-in retry logic for transient errors
-- Respects Gmail API quotas and limits
-
-### Batch Operations
-
-- Batch delete/trash operations are more efficient than individual calls
-- Operations are atomic - either all succeed or all fail
-
-## Logging
-
-The library uses the `log` crate for logging:
-
-```rust path=null start=null
-use env_logger;
-
-// Initialize logging
-env_logger::init();
-
-# Set log level via environment variable
-# RUST_LOG=cull_gmail=debug cargo run
-```
-
-Log levels:
-- `error`: Critical errors
-- `warn`: Warnings (e.g., missing labels, dry-run mode)
-- `info`: General information (e.g., message subjects, action results)
-- `debug`: Detailed operation info
-- `trace`: Very detailed debugging info
-
-## Security Considerations
-
-### OAuth2 Token Storage
-- Tokens are stored in `~/.cull-gmail/gmail1` by default
-- Tokens are automatically refreshed when expired
-- Revoke access in [Google Account settings](https://myaccount.google.com/permissions)
-
-### Required Scopes
-The library requires the `https://mail.google.com/` scope for full Gmail access.
-
-### Credential File Security
-- Store credential files securely (not in version control)
-- Use restrictive file permissions (600)
-- Consider using environment variables in production
-
-## Troubleshooting
-
-### Authentication Issues
-1. Verify credential file path and format
-2. Check OAuth2 client is configured for "Desktop Application"
-3. Ensure redirect URI matches configuration
-4. Clear token cache: `rm -rf ~/.cull-gmail/gmail1`
-
-### No Messages Found
-1. Verify label names exist: `client.show_label()`
-2. Test query syntax in Gmail web interface
-3. Check for typos in label names or query strings
-
-### Rate Limiting
-1. Reduce page size: `client.set_max_results(100)`
-2. Add delays between operations
-3. Check [Gmail API quotas](https://developers.google.com/gmail/api/reference/quota)
-
-## See Also
-
-- [CLI Documentation](main.md) - Complete guide to the command-line interface
-- [Examples Directory](../examples/) - Additional code examples and sample configurations
-- [API Documentation](https://docs.rs/cull-gmail) - Generated API reference
-- [Repository](https://github.com/jerus-org/cull-gmail) - Source code and issue tracking