chore: sync working tree — Stage 1 v.7 reorg, jikji indexes, claim-drafting docs

- Rename "Claude YAML"/"Codex YAML" folders to Claude_YAML/Codex_YAML in Stage_1 v.7
- Add Stage_1 v.7 extension research, results runs, and reference material
- Add/refresh .jikji search indexes (Case_02 and Default_Agent corpora)
- Add per-case-type claim drafting folders and PDFs (청구취지기재방법)
- Add 판례모음 crawling data (08_14, 08_18)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Case_02_Comparison_Research/.jikji/wiki/sources/Untitled-3-d69bcc40d5cc.md

@@ -0,0 +1,17 @@
+---
+schema: jikji.llm_wiki.source.v1
+source_path: "Untitled 3.txt"
+wiki_path: ".jikji/wiki/sources/Untitled-3-d69bcc40d5cc.md"
+---
+
+# Untitled 3.txt
+
+## Agent-use summary
+- Original path: `Untitled 3.txt`
+- File type: `.txt`
+- Text cache: ``
+
+## Grounded preview
+'part_2_fail_analysis
+md'를 바탕으로 실패지점 발생 원인을 해결하여 Stage 1 전체 작업을 수행하는데 성공했다
+완성된 Stage 1 yaml은 Part 1 ~ Part 4 4개 yaml 파일로 이루어져 있으며 <1