GSoC/DMP 2025 Week 6: feat(runtime): Update and enhance Symbol Table implementation

[sa-fw-an]

Enhanced Symbol Table with Advanced Data Types and Access Control

This PR implements Enhanced Symbol Table Features for the Music Blocks 4 Program Engine, as outlined in Week 7 of the GSoC project.

What's Implemented

Enhanced Data Type Support

• Enum support with metadata for possible values, type validation, and member access (solfege.do)
• Array support with element type metadata, dimensions, and length constraints
• Dictionary support with key-value type metadata and dynamic key handling
• Member expression resolution for object.property syntax with proper type checking

Symbol Table Enhancements

• Memory pointer architecture linking symbols to memory module locations
• Enhanced symbol resolver with member expression support and access control
• Unified symbol manager providing clean API for all symbol operations

How to Test

Run Enhanced Tests

npm run test symbol-table2.test.ts
# or run all symbol table tests
npm run test symbol-table

Enhanced API

• SymbolManager: declareEnum(), declareArray(), declareDictionary(), getMemberValue(), setMemberValue()
• Access Control: validateSymbolAccess(), validateMemberAccess(), execution context management
• Factory Methods: createEnum(), createArray(), createDictionary() with specialized metadata