refactor: extract inline JS into app/ modules, remove dead overtype-webcomponent

- Remove overtype-webcomponent.min.js (zero references)
- Extract copyLogContent + fallbackCopy + HTMX tab-updater → app/admin-logs.js
  (removes duplicate from both system.php and parametres.php)
- Extract copyUrl → app/clipboard.js (shared by acces.php)
- Extract tag/language pill-search logic → app/pill-search.js
  Generalized with data-pill-search attributes, auto-inits via
  DOMContentLoaded + htmx:afterSwap
- Extract access-request form handler → app/access-request.js
  (was inline in templates/public/tfe.php)

Files created: admin-logs.js, clipboard.js, pill-search.js, access-request.js
Files modified: 9 templates/controllers to drop inline scripts and
  reference external JS files

app/public/assets/js/app/clipboard.js

@@ -0,0 +1,38 @@
+/**
+ * clipboard.js — lightweight URL copy helper.
+ *
+ * Usage:
+ *   <input type="hidden" id="url-123" value="https://...">
+ *   <button onclick="copyUrl(123)">Copier</button>
+ *
+ * Or with a custom selector pattern:
+ *   <button onclick="copyUrlFrom(document.getElementById('my-url'))">Copier</button>
+ */
+(function () {
+    'use strict';
+
+    window.copyUrl = function (id) {
+        var input = document.getElementById('url-' + id);
+        if (input) {
+            window.copyUrlFrom(input);
+        }
+    };
+
+    window.copyUrlFrom = function (sourceEl) {
+        var text = sourceEl.value || sourceEl.textContent || '';
+        if (!text) return;
+        navigator.clipboard.writeText(text).then(function () {
+            var btn = window.event && window.event.target ? window.event.target.closest('button') : null;
+            if (btn) {
+                var origTitle = btn.getAttribute('title') || '';
+                var origText = btn.textContent;
+                btn.setAttribute('title', '\u2713 Copi\u00e9');
+                btn.textContent = '\u2713 Copi\u00e9';
+                setTimeout(function () {
+                    btn.setAttribute('title', origTitle);
+                    btn.textContent = origText;
+                }, 1200);
+            }
+        });
+    };
+})();