Fix missing frontmatter name fields and hardcoded paths in skills

Add missing `name` field to all research-zh and research-en SKILL.md
frontmatter (fixes #1). Replace hardcoded /home/weizhena/ paths with
~ and {project_dir} placeholders in research-deep skills (fixes #2).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

skills/research-zh/research/SKILL.md

@@ -1,4 +1,5 @@
 ---
+name: research
 user-invocable: true
 allowed-tools: Read, Write, Glob, WebSearch, Task, AskUserQuestion
 description: 对目标话题进行初步调研，生成调研outline。用于学术调研、benchmark调研、技术选型等场景。