Add color-coding/syntax highlighting for JSON output in shell command results

[sajeetharan]

Problem

When executing shell commands that return JSON results, the output is displayed as plain text without any syntax highlighting or color-coding, making it difficult to read and parse complex nested JSON structures.

Solution

Implement syntax highlighting and color-coding for JSON results returned from shell commands. This should distinguish:

• Keys vs. values
• Data types (strings in one color, numbers in another, booleans/null in distinct colors)
• Nested structures with clear visual hierarchy
• Brackets, braces, and punctuation

Benefits

• Improved readability of query results and command outputs
• Faster visual parsing of complex nested JSON
• Better developer experience
• Standard practice in modern CLIs (like jq, Azure CLI, etc.)

Acceptance Criteria

• JSON output displays with syntax highlighting
• Color scheme is easy to read and distinguish
• Works with deeply nested JSON structures
• Output remains copy-paste friendly
• Respects terminal color themes (light/dark)
• No performance impact on command execution