feat: OPDS v1 server — acquisition feeds, Basic auth, interface-scoped listeners

Cargo.toml

@@ -1,6 +1,12 @@
 [workspace]
 resolver = "2"
-members = ["crates/citadel-core", "crates/libcalibre", "src-tauri"]
+members = [
+    "crates/citadel-core",
+    "crates/citadel-opds",
+    "crates/citadel-server",
+    "crates/libcalibre",
+    "src-tauri",
+]
 
 [workspace.package]
 rust-version = "1.97.1"

crates/citadel-core/src/book.rs

@@ -82,7 +82,7 @@ impl LibraryBook {
     ) -> Self {
         Self {
             id: book.id.as_i32().to_string(),
-            uuid: Some(book.uuid.clone()),
+            uuid: book.uuid.clone(),
             title: book.title.clone(),
             author_list: book
                 .authors

crates/citadel-core/src/url.rs

@@ -164,7 +164,7 @@ mod tests {
     ) -> libcalibre::library::Book {
         libcalibre::library::Book {
             id: libcalibre::BookId::from(1),
-            uuid: "test-uuid".to_string(),
+            uuid: Some("test-uuid".to_string()),
             title: "Title".to_string(),
             sortable_title: None,
             authors: vec![],

crates/citadel-opds/Cargo.toml

@@ -0,0 +1,33 @@
+[package]
+name = "citadel-opds"
+version = "0.1.0"
+edition = "2021"
+rust-version.workspace = true
+description = "Tauri-independent OPDS runtime for Citadel"
+
+[dependencies]
+argon2 = "0.5"
+axum = "0.8.9"
+base64 = "0.22"
+bytes = "1"
+chrono = { version = "0.4.31", features = ["serde"] }
+futures-util = "0.3"
+hmac = "0.12"
+rand_core = { version = "0.6", features = ["getrandom"] }
+sha2 = "0.10"
+subtle = "2.6"
+libcalibre = { path = "../libcalibre" }
+netdev = { version = "=0.45.0", default-features = false }
+quick-xml = "0.38"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+specta = { version = "=2.0.0-rc.22", features = ["chrono", "derive"] }
+tokio = { version = "1.52.3", features = ["macros", "net", "rt-multi-thread", "sync", "time"] }
+urlencoding = "2.1.3"
+uuid = { version = "1.6.1", features = ["v4", "fast-rng"] }
+
+[dev-dependencies]
+diesel = { version = "2.1.0", features = ["sqlite"] }
+reqwest = { version = "0.12", features = ["json"] }
+tempfile = "3.8"
+tower = "0.5"