Initial import of fitme3070.pt platform

Plain-PHP fleet platform with id.andmore.pt SSO. Wires shared/platform-tools
as a submodule (platform_update, backups, git/migration tools) like the other
platforms.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

config/ci_compat.php

@@ -0,0 +1,78 @@
+<?php
+// ─── CodeIgniter 4 view-helper compatibility shim ────────────────────────────
+// Lets the original fitme3070 view partials (site/partials/*) run byte-for-byte
+// under the new plain-PHP structure. Only the helpers the ported templates
+// actually use are implemented. base_url() comes from config/functions.php.
+
+if (!defined('SITE_INCLUDES')) {
+    define('SITE_INCLUDES', dirname(__DIR__) . '/site/includes');
+}
+
+// <script src> / <link rel=stylesheet> tag builders (CI4 html helper).
+function script_tag(string $src): string {
+    return '<script src="' . htmlspecialchars(base_url($src), ENT_QUOTES) . '"></script>' . "\n";
+}
+function link_tag(string $href, string $rel = 'stylesheet'): string {
+    return '<link rel="' . $rel . '" href="' . htmlspecialchars(base_url($href), ENT_QUOTES) . '">' . "\n";
+}
+function site_url(string $path = ''): string { return base_url($path); }
+
+function esc($value, string $context = 'html'): string {
+    return htmlspecialchars((string) $value, ENT_QUOTES, 'UTF-8');
+}
+
+// Render a partial like CI4's view(): extract $data + the shared page vars
+// (info / navbar / current_uri_2 via $GLOBALS['_view_shared']) and return the
+// buffered HTML. Lets partials read $info without threading it through callers.
+function view(string $name, array $data = []): string {
+    $shared = $GLOBALS['_view_shared'] ?? [];
+    extract($shared);
+    extract($data);
+    ob_start();
+    include SITE_INCLUDES . '/' . $name . '.php';
+    return ob_get_clean();
+}
+
+// Minimal session() shim — the templates only read getFlashdata().
+// Per-request singleton: the constructor's flash sweep therefore runs once per
+// request, which is what makes flashdata actually "flash".
+function session(): _FitSession {
+    static $s = null;
+    if ($s === null) $s = new _FitSession();
+    return $s;
+}
+class _FitSession {
+    // CI4-style flashdata lifecycle. A value set with setFlashdata() in request N
+    // (the POST handler, just before its redirect) must be readable in request
+    // N+1 (the redirect target) and then disappear — otherwise the banner sticks
+    // around forever, surviving reloads, because nothing ever clears it.
+    //
+    // We track an age marker per key: setFlashdata() marks it 'new'; on the next
+    // request the sweep ages 'new' → 'old' (still readable), and on the request
+    // after that it deletes anything 'old'. The sweep runs once, here, before any
+    // read or write this request (setFlashdata() is itself the first session()
+    // call in a POST handler, so the constructor always precedes it).
+    public function __construct() {
+        foreach ($_SESSION['_flash_age'] ?? [] as $k => $age) {
+            if ($age === 'old') {
+                unset($_SESSION['_flash'][$k], $_SESSION['_flash_age'][$k]);
+            } else {
+                $_SESSION['_flash_age'][$k] = 'old';
+            }
+        }
+        // Sweep orphans left by the previous (never-expiring) shim: any flash
+        // value with no age marker is stale and would otherwise stick forever.
+        foreach (array_keys($_SESSION['_flash'] ?? []) as $k) {
+            if (!isset($_SESSION['_flash_age'][$k])) unset($_SESSION['_flash'][$k]);
+        }
+        if (empty($_SESSION['_flash']))     unset($_SESSION['_flash']);
+        if (empty($_SESSION['_flash_age'])) unset($_SESSION['_flash_age']);
+    }
+    public function getFlashdata(string $key) { return $_SESSION['_flash'][$key] ?? null; }
+    public function setFlashdata(string $key, $val): void {
+        $_SESSION['_flash'][$key]     = $val;
+        $_SESSION['_flash_age'][$key] = 'new';
+    }
+    public function get(string $key) { return $_SESSION[$key] ?? null; }
+    public function set(string $key, $val): void { $_SESSION[$key] = $val; }
+}