feat: add public club pages

Add publication settings for clubs and sessions, read-only public club/session pages, dashboard controls, privacy-focused public queries, docs, and tests.

Bump version to 3.3.0

src/GmRelay.Web/wwwroot/app.css

@@ -785,6 +785,62 @@ select option {
     white-space: nowrap;
 }
 
+.batch-publish-row,
+.public-settings-actions,
+.public-link-row {
+    display: flex;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 0.75rem;
+}
+
+.batch-publish-row {
+    justify-content: space-between;
+    padding-top: 1rem;
+    border-top: 1px solid var(--border-color);
+}
+
+.public-settings-panel {
+    position: relative;
+    z-index: 2;
+}
+
+.public-toggle-field {
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
+}
+
+.gm-checkbox-label {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.625rem;
+    color: var(--text-primary);
+    font-weight: 600;
+}
+
+.gm-checkbox-label input {
+    width: 1rem;
+    height: 1rem;
+    accent-color: var(--accent-primary);
+}
+
+.public-settings-actions {
+    margin-top: 0.25rem;
+}
+
+.public-link-row {
+    margin-top: 1rem;
+    padding-top: 1rem;
+    border-top: 1px solid var(--border-color);
+    color: var(--text-muted);
+    font-size: 0.875rem;
+}
+
+.public-link-row a {
+    overflow-wrap: anywhere;
+}
+
 /* === Campaign templates === */
 .campaign-template-panel {
     margin-bottom: 1.5rem;
@@ -1620,6 +1676,151 @@ body.telegram-mini-app .session-card-mobile {
     }
 }
 
+/* === Public pages === */
+.public-shell {
+    min-height: 100vh;
+    position: relative;
+    z-index: 2;
+}
+
+.public-topbar {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    gap: 1rem;
+    padding: 1rem 2rem;
+    border-bottom: 1px solid var(--border-color);
+    background: rgba(5, 8, 16, 0.82);
+    backdrop-filter: blur(16px);
+}
+
+.public-brand {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.75rem;
+    color: var(--text-primary);
+    font-weight: 700;
+}
+
+.public-brand img {
+    width: 2rem;
+    height: 2rem;
+}
+
+.public-content {
+    width: min(960px, calc(100% - 2rem));
+    margin: 0 auto;
+    padding: 2rem 0 3rem;
+}
+
+.public-hero {
+    margin-bottom: 1.5rem;
+    padding: 2rem 0 1rem;
+}
+
+.public-hero-compact {
+    max-width: 720px;
+}
+
+.public-hero h1 {
+    font-size: 2rem;
+    margin: 0.75rem 0 0.5rem;
+}
+
+.public-hero p {
+    max-width: 640px;
+    margin: 0;
+    color: var(--text-secondary);
+}
+
+.public-session-list {
+    display: grid;
+    gap: 0.875rem;
+}
+
+.public-session-card,
+.public-session-detail {
+    position: relative;
+    z-index: 2;
+}
+
+.public-session-card {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr) auto;
+    gap: 1rem;
+    align-items: center;
+    padding: 1rem;
+    background: var(--glass-bg);
+    border: 1px solid var(--glass-border);
+    border-radius: var(--radius-md);
+}
+
+.public-session-main h2 {
+    font-size: 1.125rem;
+    margin: 0.625rem 0 0.375rem;
+    overflow-wrap: anywhere;
+}
+
+.public-session-meta,
+.public-detail-grid {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.75rem 1.25rem;
+    color: var(--text-secondary);
+    font-size: 0.875rem;
+}
+
+.public-detail-grid {
+    display: grid;
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+    margin-bottom: 1.25rem;
+}
+
+.public-detail-grid div {
+    padding: 1rem;
+    border: 1px solid var(--border-color);
+    border-radius: var(--radius-sm);
+    background: var(--bg-surface);
+}
+
+.public-detail-grid span {
+    display: block;
+    margin-bottom: 0.375rem;
+    color: var(--text-muted);
+    font-size: 0.75rem;
+    text-transform: uppercase;
+}
+
+.public-detail-grid strong {
+    color: var(--text-primary);
+}
+
+.public-empty-state h2 {
+    font-size: 1.125rem;
+    margin-bottom: 0.5rem;
+}
+
+.public-empty-state p {
+    margin: 0;
+    color: var(--text-secondary);
+}
+
+@media (max-width: 768px) {
+    .public-topbar {
+        padding: 0.875rem 1rem;
+    }
+
+    .public-session-card,
+    .public-detail-grid {
+        grid-template-columns: 1fr;
+    }
+
+    .public-session-card .btn-gm {
+        justify-content: center;
+        width: 100%;
+    }
+}
+
 /* === Discord Login Button === */
 .login-btn-discord {
     display: flex;