Tweaks and fixes throughout the project (#27)

This PR contains the work done to do a little bit of housekeeping pass across all packages and the Website service.

To provide further details about the work:
* Refreshed the READMEs and source documentation to match the current code;
* Tagged every test case consistently across the Infrastructure, Localization, Persistence, and Website test targets;
* Removed Website middleware tests now covered by Infrastructure's own suite;
* Conformed the `PrepareDB` method to Sendable;
* Relaxes the production Compose DATABASE_TLS default from require to prefer;
* Added Persistence test verifying the prefer posture falls back to plaintext connections.

Reviewed-on: rock-n-code/loud-amsterdam#27
Co-authored-by: Javier Cicchelli <javier@rock-n-code.com>
Co-committed-by: Javier Cicchelli <javier@rock-n-code.com>

Packages/Infrastructure/Sources/Public/Protocols/Asset.swift

@@ -1,9 +1,7 @@
-/// An asset shipped with a website: a file stored under the static files root and served by
-/// Hummingbird's `FileMiddleware` middleware.
+/// An asset shipped with a website: a file stored under the static files root and served by Hummingbird's `FileMiddleware` middleware.
 ///
-/// A conforming asset supplies its file name and the extensions it is available with, each
-/// resolving to its own file; the protocol derives the paths from them: the file's path within
-/// the static files root and the URL path it is served at, optionally versioned to bust caches.
+/// A conforming asset supplies its file name and the extensions it is available with, each resolving to its own file; the protocol derives the paths from them:
+/// the file's path within the static files root and the URL path it is served at, optionally versioned to bust caches.
 public protocol Asset: Sendable {
 
     // MARK: Properties
@@ -58,9 +56,8 @@ public extension Asset {
 
     /// Resolves the absolute URL path the asset is served at (e.g. `"/css/shared.css"`).
     ///
-    /// A version token appends as a `v` query parameter (e.g. `"/css/shared.css?v=abc123"`):
-    /// `FileMiddleware` ignores the query when resolving the file, while caches key on the full
-    /// URL, so a deploy that changes the assets busts every cached copy at once.
+    /// A version token appends as a `v` query parameter (e.g. `"/css/shared.css?v=abc123"`): `FileMiddleware` ignores the query when
+    /// resolving the file, while caches key on the full URL, so a deploy that changes the assets busts every cached copy at once.
     /// - Parameters:
     ///   - fileExtension: the extension of the file to resolve.
     ///   - version: the version token to append, or `nil` to leave the URL unversioned.

Packages/Infrastructure/Sources/Public/Protocols/LocalizedRequestContext.swift

@@ -2,9 +2,8 @@ import Hummingbird
 
 /// A request context that carries the language negotiated for the request.
 ///
-/// ``LocalizationMiddleware`` resolves the visitor's preferred language from the `Accept-Language`
-/// header and stores it here, so downstream controllers and middleware can serve the matching
-/// localization without re-reading the header.
+/// ``LocalizationMiddleware`` resolves the visitor's preferred language from the `Accept-Language` header and stores it here, so downstream
+/// controllers and middleware can serve the matching localization without re-reading the header.
 public protocol LocalizedRequestContext: RequestContext {
 
     // MARK: Properties

Packages/Infrastructure/Sources/Public/Protocols/Page.swift

@@ -62,8 +62,8 @@ public extension Page {
 
     /// The viewport declaration and ``stylesheets`` links followed by the ``metadata``, placed in the document head.
     ///
-    /// The charset declaration is omitted: Elementary's `HTMLDocument` scaffolding already
-    /// emits `<meta charset="UTF-8">` before this markup, and HTML5 allows only one.
+    /// The charset declaration is omitted: Elementary's `HTMLDocument` scaffolding already emits `<meta charset="UTF-8">` before this markup,
+    /// and HTML5 allows only one.
     @HTMLBuilder
     var head: some HTML {
         meta(

Packages/Infrastructure/Sources/Public/Protocols/RouterController.swift

@@ -2,8 +2,8 @@ import Hummingbird
 
 /// A type exposing its endpoints as a route collection ready to be added to a router.
 ///
-/// Conforming controllers group related endpoints behind a single ``routes`` property,
-/// so the application composes them declaratively with ``Hummingbird/RouterMethods/addController(_:)``:
+/// Conforming controllers group related endpoints behind a single ``routes`` property, so the application composes them declaratively with
+/// ``Hummingbird/RouterMethods/addController(_:)``:
 ///
 /// ```swift
 /// struct HealthController<Context: RequestContext>: RouterController {