refactor: archive GUI clients; keep minimal TUI with hooks/API

Move Qt/Tauri/full Web SPA under archive/, ship hermit as CLI/TUI plus
libcstcore and cst-webui/1 HTTP+SSE (turn lifecycle hooks, capabilities).

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

archive/qt-app/icons/edit-delete.svg

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24">
+  <defs id="defs3051">
+    <style type="text/css" id="current-color-scheme">.ColorScheme-NegativeText { color: #da4453; } </style>
+  </defs>
+  <g transform="translate(1,1)">
+    <path style="fill:currentColor;fill-opacity:1;stroke:none" class="ColorScheme-NegativeText" d="M8 3v2h1V4h4v1h1V3H8M4 6v1h14V6H4m2 2v11h10V8h-1v10H7V8H6"/>
+  </g>
+</svg>