feat(ecosystem): update PM2 configuration for control plane and web server

- Renamed the control process to `jflow-control` and updated the script path to `control.js`.
- Introduced a new `jflow-web` process for the production UI, serving on port 8500.
- Enhanced environment variable handling for both processes, ensuring proper port assignments.
- Updated README to reflect new process architecture and usage instructions for starting the application.

ecosystem.config.cjs

@@ -1,7 +1,9 @@
 /**
- * Production PM2 ecosystem (monolith runner).
- * Use for deployed/single-process starts. For local multi-process Ops UI, use
- * `pnpm dev:pm2` → packages/server/ecosystem.dev.cjs / control.js instead.
+ * Production PM2 ecosystem (control plane + UI).
+ * Starts always-on processes only; HTTP (:8700) and workers are owned by
+ * control.js via PM2 (same as `pnpm dev:pm2`).
+ *
+ * Prerequisites: `pnpm build` (packages/web/dist), Redis, .env secrets.
  */
 const fs = require("fs");
 const path = require("path");
@@ -28,21 +30,40 @@ function loadEnv(file) {
 }
 
 const root = __dirname;
+const env = {
+  NODE_ENV: "production",
+  ...loadEnv(path.join(root, ".env")),
+};
 
 module.exports = {
   apps: [
     {
-      name: "jerapah-flow",
+      name: "jflow-control",
       cwd: root,
-      script: "packages/server/runner.js",
+      script: "packages/server/control.js",
       interpreter: "node",
       instances: 1,
       autorestart: true,
       max_restarts: 20,
       env: {
-        NODE_ENV: "production",
-        ...loadEnv(path.join(root, ".env")),
+        ...env,
+        JFLOW_CONTROL_PORT: env.JFLOW_CONTROL_PORT ?? "8600",
+      },
+    },
+    {
+      name: "jflow-web",
+      cwd: root,
+      script: "packages/server/web-server.js",
+      interpreter: "node",
+      instances: 1,
+      autorestart: true,
+      max_restarts: 20,
+      env: {
+        ...env,
+        JFLOW_UI_PORT: env.JFLOW_UI_PORT ?? "8500",
+        JFLOW_CONTROL_PORT: env.JFLOW_CONTROL_PORT ?? "8600",
+        JFLOW_HTTP_PORT: env.JFLOW_HTTP_PORT ?? "8700",
       },
     },
   ],
-};
+};