Add smart install prompt for supported browsers

src/PowderCoating.Web/Views/Shared/_Layout.cshtml

@@ -351,6 +351,17 @@
             gap: 1rem;
         }
 
+        .install-app-btn {
+            display: inline-flex;
+            align-items: center;
+            gap: 0.45rem;
+            white-space: nowrap;
+        }
+
+        .install-app-btn i {
+            font-size: 0.95rem;
+        }
+
         .user-avatar {
             width: 40px;
             height: 40px;
@@ -627,6 +638,10 @@
             .stat-card i {
                 font-size: 1.25rem !important;
             }
+
+            .install-app-btn .install-label {
+                display: none;
+            }
         }
 
         /* Loading States */
@@ -1434,6 +1449,12 @@
             </div>
 
             <div class="user-menu">
+                <button type="button" class="btn btn-outline-primary btn-sm install-app-btn d-none"
+                        id="installAppBtn" aria-label="Install app">
+                    <i class="bi bi-download"></i>
+                    <span class="install-label">Install App</span>
+                </button>
+
                 <!-- Theme toggle -->
                 <button type="button" class="pcl-theme-toggle"
                         data-theme-toggle aria-pressed="false" aria-label="Toggle dark mode">
@@ -2140,6 +2161,32 @@
     </div>
     <script src="~/js/quick-add.js" asp-append-version="true"></script>
     <script src="~/js/theme-toggle.js" asp-append-version="true"></script>
+    <script src="~/js/install-app.js" asp-append-version="true"></script>
+
+    <div class="modal fade" id="installHelpModal" tabindex="-1" aria-labelledby="installHelpModalLabel" aria-hidden="true">
+        <div class="modal-dialog modal-dialog-centered">
+            <div class="modal-content border-0 shadow-lg">
+                <div class="modal-header">
+                    <h5 class="modal-title fw-semibold" id="installHelpModalLabel">Install App</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <div class="d-flex gap-3">
+                        <div class="fs-3 text-primary">
+                            <i class="bi bi-phone"></i>
+                        </div>
+                        <div>
+                            <p class="mb-2" id="installHelpMessage"></p>
+                            <div class="small text-muted" id="installHelpSteps"></div>
+                        </div>
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-primary" data-bs-dismiss="modal">Got It</button>
+                </div>
+            </div>
+        </div>
+    </div>
 
     <!-- ── Global Confirm Dialog ──────────────────────────────────────────── -->
     <div class="modal fade" id="globalConfirmModal" tabindex="-1" aria-hidden="true">

src/PowderCoating.Web/wwwroot/js/install-app.js

@@ -0,0 +1,107 @@
+// Browser-aware install UX for supported PWAs.
+// Shows a real install button only when the browser exposes the install prompt,
+// and falls back to platform-specific instructions for iOS Safari.
+(function () {
+    'use strict';
+
+    const installBtn = document.getElementById('installAppBtn');
+    if (!installBtn) return;
+
+    const ua = navigator.userAgent || '';
+    const isIos = /iphone|ipad|ipod/i.test(ua);
+    const isIosSafari = isIos && /safari/i.test(ua) && !/crios|fxios|edgios/i.test(ua);
+
+    let deferredPrompt = null;
+
+    function isStandalone() {
+        return window.matchMedia('(display-mode: standalone)').matches || window.navigator.standalone === true;
+    }
+
+    function hideInstallButton() {
+        installBtn.classList.add('d-none');
+        installBtn.dataset.installKind = '';
+    }
+
+    function showInstallButton(kind, label, iconClass) {
+        installBtn.dataset.installKind = kind;
+        installBtn.classList.remove('d-none');
+        installBtn.querySelector('.install-label').textContent = label;
+        installBtn.querySelector('i').className = `bi ${iconClass}`;
+        installBtn.setAttribute('aria-label', label);
+        installBtn.title = label;
+    }
+
+    function showHelpModal(title, message, stepsHtml) {
+        const modalEl = document.getElementById('installHelpModal');
+        const modalTitleEl = document.getElementById('installHelpModalLabel');
+        const modalMessageEl = document.getElementById('installHelpMessage');
+        const modalStepsEl = document.getElementById('installHelpSteps');
+
+        if (!modalEl || !modalTitleEl || !modalMessageEl || !modalStepsEl) return;
+
+        modalTitleEl.textContent = title;
+        modalMessageEl.textContent = message;
+        modalStepsEl.innerHTML = stepsHtml;
+        bootstrap.Modal.getOrCreateInstance(modalEl).show();
+    }
+
+    function refreshInstallUi() {
+        if (isStandalone()) {
+            hideInstallButton();
+            return;
+        }
+
+        if (deferredPrompt) {
+            showInstallButton('prompt', 'Install App', 'bi-download');
+            return;
+        }
+
+        if (isIosSafari) {
+            showInstallButton('ios', 'Add to Home Screen', 'bi-box-arrow-down');
+            return;
+        }
+
+        hideInstallButton();
+    }
+
+    window.addEventListener('beforeinstallprompt', function (event) {
+        event.preventDefault();
+        deferredPrompt = event;
+        refreshInstallUi();
+    });
+
+    window.addEventListener('appinstalled', function () {
+        deferredPrompt = null;
+        hideInstallButton();
+    });
+
+    window.matchMedia('(display-mode: standalone)').addEventListener?.('change', refreshInstallUi);
+
+    installBtn.addEventListener('click', async function () {
+        const kind = installBtn.dataset.installKind;
+
+        if (kind === 'prompt' && deferredPrompt) {
+            deferredPrompt.prompt();
+
+            try {
+                await deferredPrompt.userChoice;
+            } catch {
+                // Ignore prompt result errors; the browser owns the final install flow.
+            }
+
+            deferredPrompt = null;
+            refreshInstallUi();
+            return;
+        }
+
+        if (kind === 'ios') {
+            showHelpModal(
+                'Add to Home Screen',
+                'Safari on iPhone and iPad installs web apps from the Share menu.',
+                'Tap <strong>Share</strong> in Safari, then choose <strong>Add to Home Screen</strong>.'
+            );
+        }
+    });
+
+    refreshInstallUi();
+})();

src/PowderCoating.Web/wwwroot/manifest.json

@@ -2,7 +2,9 @@
   "name": "Powder Coating Logix",
   "short_name": "PCLogix",
   "description": "Powder coating shop management — jobs, quotes, inventory, and scheduling.",
+  "id": "/",
   "start_url": "/",
+  "scope": "/",
   "display": "standalone",
   "background_color": "#ffffff",
   "theme_color": "#1A1A1C",