v0.35.1: performance, AGPL licensing and documentation overhaul

- Web Server reads static files inline; proxy middleware chain flattened
- About window with license summary and project links; AGPL-3.0-or-later
- Rewritten documentation: feature list, screenshots, performance guide
- Fix false spikes in per-Vhost request-rate charts

src/admin/web/docs.css

@@ -1,4 +1,4 @@
-/* A deliberately self-contained documentation layout. */
+/* Documentation Reader layout. */
 * {
     box-sizing: border-box
 }
@@ -325,6 +325,38 @@ main {
     color: #52606d
 }
 
+.reader-table {
+    overflow-x: auto;
+    margin: 14px 0
+}
+
+.reader-table table {
+    border-collapse: collapse;
+    width: 100%;
+    font-size: 14px
+}
+
+.reader-table :is(th, td) {
+    text-align: left;
+    vertical-align: top;
+    padding: 7px 10px;
+    border: 1px solid #e0e5ea;
+    line-height: 1.5
+}
+
+.reader-table th {
+    background: #f4f6f8
+}
+
+.reader-image {
+    display: block;
+    margin: 12px 0;
+    padding: 10px 12px;
+    border: 1px dashed #c9d1d9;
+    color: #52606d;
+    font-size: 13px
+}
+
 .reader-empty {
     color: #687581;
     padding: 10px 8px
@@ -344,8 +376,7 @@ main {
         padding: 18px
     }
 }
-/* Authenticated documentation uses the same stored corner preference as the
-   main panel, while retaining its original flat shape for "Original". */
+/* Corner style follows the panel preference. */
 html[data-corner-style=square] {
     --rp-docs-radius-surface: 0px;
     --rp-docs-radius-control: 0px;