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/icons/icon.svg

@@ -0,0 +1,12 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" role="img" aria-label="'ѧ">
+  <defs>
+    <linearGradient id="g" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" stop-color="#4cc2ff"/>
+      <stop offset="100%" stop-color="#9d6bff"/>
+    </linearGradient>
+  </defs>
+  <rect width="512" height="512" rx="96" fill="#0a0c16"/>
+  <rect x="48" y="48" width="416" height="416" rx="72" fill="#141a2e" stroke="url(#g)" stroke-width="8"/>
+  <polygon points="148,320 256,168 364,320" fill="url(#g)"/>
+  <rect x="196" y="320" width="120" height="56" rx="8" fill="#9d6bff"/>
+</svg>