Enhance Docker setup and local development: bind database directory, update PHP server command, and add local dev router to prevent exposure of sensitive files

src/scss/components/_forms.scss

@@ -46,6 +46,30 @@ textarea.form-control {
   line-height: 1.5;
 }
 
+/* Selects: drop the native (rounded, shorter) control so they match the
+   text inputs, and draw the chevron with two gradients instead of an
+   SVG data URI — it can use the theme tokens and needs no `data:` in the
+   CSP's img-src. color-scheme gives the native option list dark colors. */
+select.form-control {
+  appearance: none;
+  color-scheme: dark;
+  cursor: pointer;
+  padding-right: 2.5rem;
+  background-image:
+    linear-gradient(45deg, transparent 50%, var(--gold) 50%),
+    linear-gradient(135deg, var(--gold) 50%, transparent 50%);
+  background-position:
+    calc(100% - 1.2rem) 50%,
+    calc(100% - 0.85rem) 50%;
+  background-size: 0.35rem 0.35rem;
+  background-repeat: no-repeat;
+}
+
+select.form-control:disabled {
+  cursor: not-allowed;
+  opacity: 0.6;
+}
+
 .error-msg,
 .alert-error {
   background: var(--danger-bg);