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-2-c3a8a0f1d481.md

@@ -0,0 +1,17 @@
+---
+schema: jikji.llm_wiki.source.v1
+source_path: "Untitled 2.txt"
+wiki_path: ".jikji/wiki/sources/Untitled-2-c3a8a0f1d481.md"
+---
+
+# Untitled 2.txt
+
+## Agent-use summary
+- Original path: `Untitled 2.txt`
+- File type: `.txt`
+- Text cache: ``
+
+## Grounded preview
+`Task_A`: `client_goal
+사건군별 `domain_profiles`, 4축 `current_control_map`, `legal_entitlement_candidates`, `legal_sustainability_watchpoints` 추가
+Schema: `IssueClusterDomainProfile`, `LegalEntitlementCandidate`, `CurrentControlMap4Axis`