feat: add prelaunch site controls and refresh branding

database/schema.sql

@@ -1123,3 +1123,21 @@ CREATE TABLE IF NOT EXISTS external_service_alert_deliveries (
 );
 CREATE INDEX IF NOT EXISTS external_service_alert_pending_idx
 	ON external_service_alert_deliveries(delivered_at,created_at);
+CREATE TABLE IF NOT EXISTS site_launch_settings (
+	id TEXT PRIMARY KEY CHECK(id='primary'),
+	coming_soon_enabled INTEGER NOT NULL DEFAULT 1 CHECK(coming_soon_enabled IN (0,1)),
+	account_creation_enabled INTEGER NOT NULL DEFAULT 1 CHECK(account_creation_enabled IN (0,1)),
+	news_enabled INTEGER NOT NULL DEFAULT 1 CHECK(news_enabled IN (0,1)),
+	database_enabled INTEGER NOT NULL DEFAULT 1 CHECK(database_enabled IN (0,1)),
+	builds_enabled INTEGER NOT NULL DEFAULT 1 CHECK(builds_enabled IN (0,1)),
+	guides_enabled INTEGER NOT NULL DEFAULT 1 CHECK(guides_enabled IN (0,1)),
+	builder_enabled INTEGER NOT NULL DEFAULT 1 CHECK(builder_enabled IN (0,1)),
+	updated_at TEXT NOT NULL,
+	updated_by TEXT REFERENCES users(id)
+);
+INSERT OR IGNORE INTO site_launch_settings(
+	id,coming_soon_enabled,account_creation_enabled,news_enabled,database_enabled,
+	builds_enabled,guides_enabled,builder_enabled,updated_at
+) VALUES('primary',1,1,1,1,1,1,1,'2026-07-27T00:00:00.000Z');
+INSERT OR IGNORE INTO permissions(id,name,description)
+	VALUES('permission-site-settings-manage','site.settings.manage','Manage launch mode, account creation, and public section availability');