[feat]: Right Click on Keyspace - Create Table

[millerjp]

Description

Add functionality to create a new table through a right-click context menu on keyspaces, with a guided dialog for table definition and CQL execution.

User Flow

1. User right-clicks on a keyspace in the tree view
2. Selects "Create Table" from context menu
3. Dialog opens with the following steps:
   • Table name input
   • Column definitions
   • CQL review and execution

Technical Requirements

Table Name Validation

• Must validate table name:
  • Check for existing table names in selected keyspace
  • No spaces allowed
  • No special characters (quotes, etc.)
  • Show validation errors in real-time
  • Disable "Next" button until valid name entered

Column Definition UI

• Allow multiple column definitions
• For each column:
  • Column name input (with same validation rules as table name)
  • Data type selector with two distinct sections:
    • Standard Cassandra types
    • UDTs (only shown if UDTs exist in keyspace)
  • Primary key checkbox
  • Clustering key order selector (if clustering key)

CQL Preview & Execution

• Show generated CQL in editable text area
• Include CONSISTENCY ALL; by default
• Allow manual CQL editing
• Add "Execute" button
• Show execution results/errors

Error Handling

• Display appropriate error messages for:
  • Invalid table names
  • Invalid column names
  • CQL execution failures
  • Network/connection issues

UI/UX Considerations

• Modal dialog with clear step progression
• Responsive validation feedback
• Clear separation between standard types and UDTs
• Intuitive column management (add/remove)
• Syntax highlighting in CQL preview

Acceptance Criteria

• Right-click context menu implemented with "Create Table" option
• Table name validation working correctly
• Column definition UI with proper data type segregation
• UDT handling and display
• CQL preview with syntax highlighting
• Execution functionality with proper error handling
• All validation rules enforced
• Proper error messages displayed

Technical Notes

• Need to fetch UDT information from keyspace metadata
• Reuse existing CQL execution components
• Maintain consistent error handling patterns

Related Issues

• #544 (Similar dialog implementation reference)