fix: add explicit skills path declaration to plugin manifests (#60)

Both yuque-personal and yuque-group plugins had skills/ directories with
SKILL.md files, but the plugin.json manifests did not declare the skills
path. This caused Claude Code to not sync skills when installing via
marketplace.

Changes:
- Add "skills": "./skills/" to yuque-personal plugin.json
- Add "skills": "./skills/" to yuque-group plugin.json
- Fix yuque-personal description from "4 Skills" to "8 Skills"
- Bump version to 1.0.1

Closes #58

Co-authored-by: babydog <babydog@babydogdeMacBook-Pro.local>

Author: chen201724

plugins/yuque-group/.claude-plugin/plugin.json

@@ -1,11 +1,12 @@
 {
   "name": "yuque-group",
   "description": "语雀团队版 — 团队知识库 AI 集成，25 MCP Tools + 6 Skills",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "author": {
     "name": "yuque"
   },
   "homepage": "https://yuque.github.io/yuque-ecosystem/",
   "repository": "https://github.com/yuque/yuque-plugin",
-  "license": "MIT"
+  "license": "MIT",
+  "skills": "./skills/"
 }

plugins/yuque-personal/.claude-plugin/plugin.json

@@ -1,11 +1,12 @@
 {
   "name": "yuque-personal",
-  "description": "语雀个人版 — 个人知识库 AI 集成，25 MCP Tools + 4 Skills",
-  "version": "1.0.0",
+  "description": "语雀个人版 — 个人知识库 AI 集成，25 MCP Tools + 8 Skills",
+  "version": "1.0.1",
   "author": {
     "name": "yuque"
   },
   "homepage": "https://yuque.github.io/yuque-ecosystem/",
   "repository": "https://github.com/yuque/yuque-plugin",
-  "license": "MIT"
+  "license": "MIT",
+  "skills": "./skills/"
 }