Reorganize: Move all skills to skills/ folder

- Created skills/ directory
- Moved 272 skills to skills/ subfolder
- Kept agents/ at root level
- Kept installation scripts and docs at root level

Repository structure:
- skills/           - All 272 skills from skills.sh
- agents/           - Agent definitions
- *.sh, *.ps1       - Installation scripts
- README.md, etc.   - Documentation

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

skills/plugins/cache/zai-coding-plugins/glm-plan-bug/0.0.1/.claude-plugin/plugin.json

@@ -0,0 +1,9 @@
+{
+  "name": "glm-plan-bug",
+  "description": "Submit case feedback and bug reports for GLM Coding Plan service",
+  "version": "0.0.1",
+  "author": {
+    "name": "gongchao",
+    "email": "chao.gong@z.ai"
+  }
+}