feat: add migrations, test scripts, and utility tools

- Add database migrations (006-028) for face recognition, identity, file_uuid
- Add test scripts for ASR, face, search, processing
- Add portal frontend (Tauri)
- Add config, benchmark, and monitoring utilities
- Add model checkpoints and pretrained model references

portal/src-tauri/src/config.rs

@@ -0,0 +1,43 @@
+use serde::{Deserialize, Serialize};
+use std::sync::Mutex;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct PortalConfig {
+    pub api_base_url: String,
+    pub api_key: String,
+    pub timeout_secs: u64,
+}
+
+impl Default for PortalConfig {
+    fn default() -> Self {
+        Self {
+            api_base_url: "http://127.0.0.1:3003".to_string(),
+            api_key: "muser_68600856036340bcafc01930eb4bd839_1774418104_97221b69".to_string(),
+            timeout_secs: 30,
+        }
+    }
+}
+
+static CONFIG: Mutex<Option<PortalConfig>> = Mutex::new(None);
+
+pub fn init_config() {
+    let mut config = CONFIG.lock().unwrap();
+    if config.is_none() {
+        let api_url = std::env::var("MOMENTRY_API_URL")
+            .unwrap_or_else(|_| "http://127.0.0.1:3003".to_string());
+        let api_key = std::env::var("MOMENTRY_API_KEY").unwrap_or_else(|_| {
+            "muser_68600856036340bcafc01930eb4bd839_1774418104_97221b69".to_string()
+        });
+
+        *config = Some(PortalConfig {
+            api_base_url: api_url,
+            api_key,
+            timeout_secs: 30,
+        });
+    }
+}
+
+pub fn get_config() -> PortalConfig {
+    let config = CONFIG.lock().unwrap();
+    config.clone().unwrap_or_default()
+}