feat: add auto-update command

commands/auto-update.md

@@ -0,0 +1,28 @@
+---
+description: Pull the latest ECC repo changes and reinstall the current managed targets.
+disable-model-invocation: true
+---
+
+# Auto Update
+
+Update ECC from its upstream repo and regenerate the current context's managed install using the original install-state request.
+
+## Usage
+
+```bash
+# Preview the update without mutating anything
+ECC_ROOT="${CLAUDE_PLUGIN_ROOT:-$(node -e "var r=(()=>{var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var p=require('path'),f=require('fs'),h=require('os').homedir(),d=p.join(h,'.claude'),q=p.join('scripts','lib','utils.js');if(f.existsSync(p.join(d,q)))return d;for(var s of [['ecc'],['ecc@ecc'],['marketplace','ecc'],['everything-claude-code'],['everything-claude-code@everything-claude-code'],['marketplace','everything-claude-code']]){var l=p.join(d,'plugins',...s);if(f.existsSync(p.join(l,q)))return l}try{for(var g of ['ecc','everything-claude-code']){var b=p.join(d,'plugins','cache',g);for(var o of f.readdirSync(b,{withFileTypes:true})){if(!o.isDirectory())continue;for(var v of f.readdirSync(p.join(b,o.name),{withFileTypes:true})){if(!v.isDirectory())continue;var c=p.join(b,o.name,v.name);if(f.existsSync(p.join(c,q)))return c}}}}catch(x){}return d})();console.log(r)")}"
+node "$ECC_ROOT/scripts/auto-update.js" --dry-run
+
+# Update only Cursor-managed files in the current project
+node "$ECC_ROOT/scripts/auto-update.js" --target cursor
+
+# Override the ECC repo root explicitly
+node "$ECC_ROOT/scripts/auto-update.js" --repo-root /path/to/everything-claude-code
+```
+
+## Notes
+
+- This command uses the recorded install-state request and reruns `install-apply.js` after pulling the latest repo changes.
+- Reinstall is intentional: it handles upstream renames and deletions that `repair.js` cannot safely reconstruct from stale operations alone.
+- Use `--dry-run` first if you want to see the reconstructed reinstall plan before mutating anything.