Fix issue #1: Remove trailing wrapper text after JSON blocks

[nshkrdotcom]

Summary

• Fixes wrapper text following JSON block not recognized #1 by properly detecting and removing trailing wrapper text after JSON structures
• Adds comprehensive test coverage for the issue scenario
• Maintains backwards compatibility with existing functionality

Problem

When JSON content was followed by trailing text (e.g., [{...}]\n1 Volume(s) created), the Layer 1 content cleaning was not removing the trailing wrapper text. This occurred because the should_extract_from_prose? function only checked for content that doesn't start with { or [.

Solution

Implemented a dedicated remove_trailing_wrapper_text/1 function that:

1. Detects when input starts with a JSON structure ({ or [)
2. Uses the existing find_balanced_end/3 function to find where the JSON ends
3. Checks if there's non-whitespace content after the JSON
4. Extracts only the JSON portion if trailing content exists

Test Results

• New test case passes ✅
• All 452 existing tests continue to pass ✅
• No Dialyzer type warnings ✅
• Code formatted with mix format ✅

Example

# Before fix:
JsonRemedy.repair_to_string("[{\"id\": 1}]\n1 Volume(s) created")
# => {:error, "Could not repair JSON - all layers processed but validation failed"}

# After fix:
JsonRemedy.repair_to_string("[{\"id\": 1}]\n1 Volume(s) created")
# => {:ok, "[{\"id\":1}]"}

🤖 Generated with Claude Code

Co-Authored-By: Claude [email protected]