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/case_kinds-9f12212ad42c.md

@@ -0,0 +1,17 @@
+---
+schema: jikji.llm_wiki.source.v1
+source_path: "Default_Agent/case_kinds.md"
+wiki_path: ".jikji/wiki/sources/case_kinds-9f12212ad42c.md"
+---
+
+# Default_Agent/case_kinds.md
+
+## Agent-use summary
+- Original path: `Default_Agent/case_kinds.md`
+- File type: `.md`
+- Text cache: ``
+
+## Grounded preview
+# 사건 종류(Case Kinds)
+| 소송 대분류 | 분쟁 유형 | 사건 종류 |
+|------------|----------|----------|