RESULT: SUCCESS

FILES CHANGED:
- renderer/html.py
- test_inline_code_breaks.py

SUMMARY:
Implemented code-span delimiter matching, normalization, precedence, hard breaks, soft breaks, and HTML-tag protection. Added regression tests.

Scoped checks pass: 22/22 and 17/17. Full suite still has unrelated pre-existing block parser failures.

BLOCKERS:
- Full `sh full_test.sh` does not pass due to tab/list/setext block parsing failures outside this story.