Function strip_jsonc_comments 

pub fn strip_jsonc_comments(src: &str) -> String

Strip JSONC-style comments from src while preserving string literals byte-exact. Handles:

• // line comments through end-of-line
• /* block comments */ (non-nested, which matches standard JSONC)
• Escape-aware string parsing so "//" inside a string is not stripped

Returns a string suitable for serde_json::from_str. Does not attempt to preserve or round-trip the comments — callers that need to write the file back must be explicit about losing comments.