refactor: create new configuration v1 mod with figment

- Clone config strcuctures into a new mod `v1`.
- Introduce versioning for configuration API.
- Split config sections into submodules.

TODO:

- Still using root mod types in production.
- Not using figment to build config in production.

packages/configuration/src/v1/health_check_api.rs

@@ -0,0 +1,13 @@
+use serde::{Deserialize, Serialize};
+use serde_with::serde_as;
+
+/// Configuration for the Health Check API.
+#[serde_as]
+#[derive(Serialize, Deserialize, PartialEq, Eq, Debug, Clone)]
+pub struct HealthCheckApi {
+    /// The address the API will bind to.
+    /// The format is `ip:port`, for example `127.0.0.1:1313`. If you want to
+    /// listen to all interfaces, use `0.0.0.0`. If you want the operating
+    /// system to choose a random port, use port `0`.
+    pub bind_address: String,
+}

packages/configuration/src/v1/http_tracker.rs

@@ -0,0 +1,23 @@
+use serde::{Deserialize, Serialize};
+use serde_with::{serde_as, NoneAsEmptyString};
+
+/// Configuration for each HTTP tracker.
+#[serde_as]
+#[derive(Serialize, Deserialize, PartialEq, Eq, Debug, Clone)]
+pub struct HttpTracker {
+    /// Weather the HTTP tracker is enabled or not.
+    pub enabled: bool,
+    /// The address the tracker will bind to.
+    /// The format is `ip:port`, for example `0.0.0.0:6969`. If you want to
+    /// listen to all interfaces, use `0.0.0.0`. If you want the operating
+    /// system to choose a random port, use port `0`.
+    pub bind_address: String,
+    /// Weather the HTTP tracker will use SSL or not.
+    pub ssl_enabled: bool,
+    /// Path to the SSL certificate file. Only used if `ssl_enabled` is `true`.
+    #[serde_as(as = "NoneAsEmptyString")]
+    pub ssl_cert_path: Option<String>,
+    /// Path to the SSL key file. Only used if `ssl_enabled` is `true`.
+    #[serde_as(as = "NoneAsEmptyString")]
+    pub ssl_key_path: Option<String>,
+}