Restructure into modules/ with single-process CTP and config/ layout.

Move business code under modules/, env template to config/, PM2 single qihuo process, and _legacy shims for old imports.

Co-authored-by: Cursor <cursoragent@cursor.com>

modules/web/static/manifest.json

@@ -0,0 +1,35 @@
+{
+  "id": "/",
+  "name": "国内期货 · 交易复盘系统",
+  "short_name": "交易复盘",
+  "description": "Position Management · Disciplined Execution",
+  "start_url": "/login",
+  "scope": "/",
+  "display": "standalone",
+  "display_override": ["standalone", "browser"],
+  "orientation": "any",
+  "background_color": "#e8eef8",
+  "theme_color": "#2563eb",
+  "lang": "zh-CN",
+  "categories": ["finance", "productivity"],
+  "icons": [
+    {
+      "src": "/static/icons/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "/static/icons/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "/static/icons/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
+    }
+  ]
+}