chore: include pre-existing self-modify report artifacts

https://claude.ai/code/session_015wv7FM6BFsgZ35Us6WeY7H

data/self_modify_reports/20260226_170416_add_docstring.md

@@ -0,0 +1,19 @@
+# Self-Modify Report: 20260226_170416
+
+**Instruction:** Add docstring
+**Target files:** src/foo.py
+**Dry run:** True
+**Backend:** ollama
+**Branch:** N/A
+**Result:** SUCCESS
+**Error:** none
+**Commit:** none
+**Attempts:** 1
+**Autonomous cycles:** 0
+
+## Attempt 1 -- dry_run
+
+### LLM Response
+```
+llm raw
+```