feat: Ford legacy support, EMEX browser pooling, collapsible sidebar

- Add PL24 Ford legacy service for fordt_parts architecture
- Refactor EMEX to use persistent browser pool instead of per-call instances
- Make vehicle decode resilient: fallback to PL24 when Corgi doesn't recognize VIN
- Add collapsible sidebar with persistent user preference
- Improve brand access guard and categories service
- Add debug/test scripts for VIN e2e testing

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ecosystem.config.js

@@ -3,11 +3,11 @@ module.exports = {
     {
       name: "sase-api",
       cwd: "./apps/api",
-      script: "dist/main.js",
-      instances: 2,
-      exec_mode: "cluster",
+      script: "pnpm",
+      args: "dev",
+      exec_mode: "fork",
       env: {
-        NODE_ENV: "production",
+        NODE_ENV: "development",
         PORT: 4000,
       },
       max_memory_restart: "512M",
@@ -19,12 +19,11 @@ module.exports = {
     {
       name: "sase-web",
       cwd: "./apps/web",
-      script: "node_modules/.bin/next",
-      args: "start",
-      instances: 2,
-      exec_mode: "cluster",
+      script: "pnpm",
+      args: "dev",
+      exec_mode: "fork",
       env: {
-        NODE_ENV: "production",
+        NODE_ENV: "development",
         PORT: 3000,
       },
       max_memory_restart: "512M",