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/claude-delegator/config/providers.json

@@ -0,0 +1,19 @@
+{
+  "providers": {
+    "codex": {
+      "name": "Codex (GPT)",
+      "description": "OpenAI GPT models via Codex CLI - specialized expert subagents",
+      "cli": "codex",
+      "install": "npm install -g @openai/codex",
+      "auth": "codex login",
+      "mcp": {
+        "type": "stdio",
+        "command": "codex",
+        "args": ["-m", "gpt-5.2-codex", "mcp-server"]
+      },
+      "experts": ["architect", "plan-reviewer", "scope-analyst", "code-reviewer", "security-analyst"],
+      "strengths": ["architecture", "code-review", "security", "requirements-analysis", "plan-validation"],
+      "avoid": ["simple-operations", "trivial-decisions", "research", "first-attempt-fixes"]
+    }
+  }
+}