Restructure Osiris: separate core, client, and server crates to avoid circular dependencies

core/src/config/model.rs

@@ -0,0 +1,55 @@
+use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
+
+/// OSIRIS configuration
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct Config {
+    /// HeroDB connection configuration
+    pub herodb: HeroDbConfig,
+    
+    /// Namespace configurations
+    #[serde(default)]
+    pub namespaces: HashMap<String, NamespaceConfig>,
+}
+
+/// HeroDB connection configuration
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct HeroDbConfig {
+    /// HeroDB URL (e.g., "redis://localhost:6379")
+    pub url: String,
+}
+
+/// Namespace configuration
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct NamespaceConfig {
+    /// HeroDB database ID for this namespace
+    pub db_id: u16,
+}
+
+impl Config {
+    /// Get namespace configuration by name
+    pub fn get_namespace(&self, name: &str) -> Option<&NamespaceConfig> {
+        self.namespaces.get(name)
+    }
+    
+    /// Add or update a namespace
+    pub fn set_namespace(&mut self, name: String, config: NamespaceConfig) {
+        self.namespaces.insert(name, config);
+    }
+    
+    /// Remove a namespace
+    pub fn remove_namespace(&mut self, name: &str) -> Option<NamespaceConfig> {
+        self.namespaces.remove(name)
+    }
+    
+    /// Get the next available database ID
+    pub fn next_db_id(&self) -> u16 {
+        let max_id = self
+            .namespaces
+            .values()
+            .map(|ns| ns.db_id)
+            .max()
+            .unwrap_or(0);
+        max_id + 1
+    }
+}