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/examples/docker-helper/commands/cleanup.ts

@@ -0,0 +1,63 @@
+/**
+ * Docker Cleanup Command
+ * Clean up unused containers, images, and volumes
+ */
+
+import { exec } from 'child_process'
+import { promisify } from 'util'
+
+const execAsync = promisify(exec)
+
+export interface CleanupOptions {
+  containers?: boolean
+  images?: boolean
+  volumes?: boolean
+  networks?: boolean
+  all?: boolean
+}
+
+export async function handle(args: CleanupOptions, context: any): Promise<string> {
+  const {
+    containers = true,
+    images = true,
+    volumes = false,
+    networks = false,
+    all = false
+  } = args
+
+  const results: string[] = []
+
+  try {
+    if (all || containers) {
+      results.push('Cleaning up stopped containers...')
+      const { stdout: containerOutput } = await execAsync('docker container prune -f')
+      results.push(containerOutput)
+    }
+
+    if (all || images) {
+      results.push('\nCleaning up dangling images...')
+      const { stdout: imageOutput } = await execAsync('docker image prune -a -f')
+      results.push(imageOutput)
+    }
+
+    if (all || volumes) {
+      results.push('\nCleaning up unused volumes...')
+      const { stdout: volumeOutput } = await execAsync('docker volume prune -f')
+      results.push(volumeOutput)
+    }
+
+    if (all || networks) {
+      results.push('\nCleaning up unused networks...')
+      const { stdout: networkOutput } = await execAsync('docker network prune -f')
+      results.push(networkOutput)
+    }
+
+    results.push('\n✓ Docker cleanup complete!')
+
+    return results.join('\n')
+  } catch (error: any) {
+    throw new Error(`Docker cleanup failed: ${error.message}`)
+  }
+}
+
+export default { handle }