feat: complete Rust backend UI compatibility

src/config.rs

@@ -3,6 +3,7 @@ use figment::{
     Figment,
 };
 use serde::Deserialize;
+use std::path::PathBuf;
 
 #[derive(Debug, Deserialize, Clone)]
 pub struct AppConfig {
@@ -10,6 +11,8 @@ pub struct AppConfig {
     pub db: DbConfig,
     pub auth: AuthConfig,
     pub proxy: ProxyConfig,
+    #[serde(default)]
+    pub comfyui: ComfyUIConfig,
 }
 
 #[derive(Debug, Deserialize, Clone)]
@@ -46,11 +49,53 @@ pub struct ProxyConfig {
     pub proxy_log_retention_days: u32,
 }
 
+#[derive(Debug, Deserialize, Clone)]
+pub struct ComfyUIConfig {
+    pub enabled: bool,
+    pub install_dir: Option<PathBuf>,
+    pub python_bin: String,
+    pub port: u16,
+    pub extra_args: Vec<String>,
+    pub max_restarts: u32,
+    pub external_url: Option<String>,
+    pub base_url: Option<String>,
+    pub agent_model: String,
+}
+
+impl Default for ComfyUIConfig {
+    fn default() -> Self {
+        Self {
+            enabled: false,
+            install_dir: None,
+            python_bin: "python3".to_string(),
+            port: 8188,
+            extra_args: Vec::new(),
+            max_restarts: 5,
+            external_url: None,
+            base_url: Some("http://127.0.0.1:8188".to_string()),
+            agent_model: "gpt-4o".to_string(),
+        }
+    }
+}
+
+impl ComfyUIConfig {
+    pub fn target_base_url(&self) -> String {
+        self.external_url
+            .as_deref()
+            .or(self.base_url.as_deref())
+            .map(str::trim)
+            .filter(|url| !url.is_empty())
+            .unwrap_or("http://127.0.0.1:8188")
+            .trim_end_matches('/')
+            .to_string()
+    }
+}
+
 impl AppConfig {
     pub fn load() -> anyhow::Result<Self> {
         dotenvy::dotenv().ok();
         Ok(Figment::new()
-            .merge(Toml::file("config.toml").nested())
+            .merge(Toml::file("config.toml"))
             .merge(Env::prefixed("BOOSAPI_").split("__"))
             .extract()?)
     }