Migrated the Website service and library targets to use Persistence package with PostgreSQL instead.

Services/Website/Sources/App/App.swift

@@ -42,7 +42,7 @@ struct App {
             return
         }
 
-        let app = await application(
+        let app = try await application(
             reader: reader
         )
 

Services/Website/Sources/App/Extensions/App+Build.swift

@@ -12,13 +12,14 @@ import WebsiteLibrary
 /// Reads the log level, server name, static files location, minimum response size to compress, and security headers from the configuration, then assembles
 /// the router, server configuration, and logger. It warns when the localization catalog cannot be read, since pages would serve raw localization keys.
 /// It also builds the persistence driver, registers its migrations, and attaches the `Fluent` service so it starts
-/// and stops alongside the HTTP server; the ephemeral in-memory backend is migrated on startup, while a MySQL/MariaDB backend is migrated out of
+/// and stops alongside the HTTP server; the ephemeral in-memory backend is migrated on startup, while a PostgreSQL backend is migrated out of
 /// band (so a shared database is never migrated on boot).
 /// - Parameter reader: the configuration reader the values are read from.
 /// - Returns: the configured application, ready to run as a service.
+/// - Throws: an error when the persistence service cannot be built (e.g. its TLS context fails to build).
 func application(
     reader: ConfigReader
-) async -> some ApplicationProtocol {
+) async throws -> some ApplicationProtocol {
     let languages = LanguageList()
     let logger = logger(
         serverName: reader.serverName,
@@ -37,7 +38,7 @@ func application(
         driver: reader.driver,
         logger: logger
     )
-    let fluent = persistence()
+    let fluent = try persistence()
 
     let fingerprintAssets = FingerprintAssets(logger: logger)
     let prepareDB = PrepareDB()
@@ -63,7 +64,7 @@ func application(
 
     app.addServices(fluent)
 
-    // The in-memory backend is recreated on every launch, so it is migrated on startup. The MySQL/MariaDB backend is
+    // The in-memory backend is recreated on every launch, so it is migrated on startup. The PostgreSQL backend is
     // left untouched here: a shared database is migrated out of band to avoid multi-instance races.
     if case .inMemory = reader.driver {
         app.beforeServerStarts {
@@ -77,7 +78,7 @@ func application(
 /// Runs every registered migration against the configured backend, then exits.
 ///
 /// This is the out-of-band migration path selected by the `database.migrate` flag: it builds the same driver the service would run against, applies the
-/// migrations, and shuts the database down — so a shared MySQL/MariaDB database is migrated by a single deliberate invocation rather than by every
+/// migrations, and shuts the database down — so a shared PostgreSQL database is migrated by a single deliberate invocation rather than by every
 /// booting instance.
 /// - Parameter reader: the configuration reader the values are read from.
 func migration(
@@ -92,7 +93,7 @@ func migration(
         logger: logger
     )
 
-    let fluent = service()
+    let fluent = try service()
     let prepareDB = PrepareDB()
 
     await prepareDB(for: fluent)

Services/Website/Sources/App/Extensions/ConfigReader+Properties.swift

@@ -59,7 +59,7 @@ package extension ConfigReader {
 
     /// The persistence backend the service runs against, derived from the `database.*` keys.
     ///
-    /// When `database.driver` selects MySQL, the connection parameters are assembled from the `database.host`, `database.port`,
+    /// When `database.driver` selects PostgreSQL, the connection parameters are assembled from the `database.host`, `database.port`,
     /// `database.name`, `database.username`, `database.password` (empty when unset), `database.tls`, and
     /// `database.pool.maxPerEventLoop` keys. Any other driver value falls back to the in-memory database.
     var driver: Driver {
@@ -67,8 +67,8 @@ package extension ConfigReader {
             forKey: .Database.driver,
             default: .Database.driver
         ) {
-        case .Database.driverMySQL:
-            return .mysql(
+        case .Database.driverPostgres:
+            return .postgres(
                 .init(
                     host: string(
                         forKey: .Database.host,
@@ -199,7 +199,7 @@ private extension ConfigReader {
 
     // MARK: Properties
 
-    /// The TLS posture for the MySQL connection, mapped from the `database.tls` key: `off` and `require` map to their postures, and any
+    /// The TLS posture for the PostgreSQL connection, mapped from the `database.tls` key: `off` and `require` map to their postures, and any
     /// other value falls back to `prefer`.
     var tls: TLS {
         switch string(