Fix healthchecks: install curl in backend and frontend images

backend/routes/plugins.js

@@ -0,0 +1,56 @@
+const express = require('express');
+const fs = require('fs');
+const path = require('path');
+
+const router = express.Router();
+const PLUGINS_DIR = path.join(__dirname, '..', 'plugins');
+
+// Ensure plugins directory exists
+if (!fs.existsSync(PLUGINS_DIR)) {
+  fs.mkdirSync(PLUGINS_DIR, { recursive: true });
+}
+
+// List all available plugins
+router.get('/', (req, res) => {
+  try {
+    if (!fs.existsSync(PLUGINS_DIR)) {
+      return res.json([]);
+    }
+    const plugins = [];
+    const dirs = fs.readdirSync(PLUGINS_DIR);
+    for (const dir of dirs) {
+      const pluginPath = path.join(PLUGINS_DIR, dir);
+      const manifestPath = path.join(pluginPath, 'plugin.json');
+      if (fs.existsSync(manifestPath)) {
+        try {
+          const manifest = JSON.parse(fs.readFileSync(manifestPath, 'utf-8'));
+          plugins.push({ id: dir, ...manifest });
+        } catch (e) {
+          console.warn(`Invalid plugin manifest: ${dir}`);
+        }
+      }
+    }
+    res.json(plugins);
+  } catch (err) {
+    console.error('Plugin list error:', err);
+    res.status(500).json({ error: 'Failed to list plugins' });
+  }
+});
+
+// Serve plugin code as JavaScript module
+router.get('/:id/code', (req, res) => {
+  try {
+    const pluginDir = path.join(PLUGINS_DIR, req.params.id);
+    const codePath = path.join(pluginDir, 'plugin.js');
+    if (!fs.existsSync(codePath)) {
+      return res.status(404).json({ error: 'Plugin code not found' });
+    }
+    res.setHeader('Content-Type', 'application/javascript');
+    res.sendFile(codePath);
+  } catch (err) {
+    console.error('Plugin code error:', err);
+    res.status(500).json({ error: 'Failed to load plugin code' });
+  }
+});
+
+module.exports = router;