storkit: merge 343_refactor_abstract_agent_runtime_to_support_non_claude_code_backends

server/src/config.rs

@@ -117,6 +117,11 @@ pub struct AgentConfig {
     /// and marked as Failed. Default: 300 (5 minutes). Set to 0 to disable.
     #[serde(default = "default_inactivity_timeout_secs")]
     pub inactivity_timeout_secs: u64,
+    /// Agent runtime backend. Controls how the agent process is spawned and
+    /// how events are streamed. Default: `"claude-code"` (spawns the `claude`
+    /// CLI in a PTY). Future values: `"openai"`, `"gemini"`.
+    #[serde(default)]
+    pub runtime: Option<String>,
 }
 
 fn default_path() -> String {
@@ -178,6 +183,7 @@ impl Default for ProjectConfig {
                 system_prompt: None,
                 stage: None,
                 inactivity_timeout_secs: default_inactivity_timeout_secs(),
+                runtime: None,
             }],
             watcher: WatcherConfig::default(),
             default_qa: default_qa(),
@@ -370,6 +376,17 @@ fn validate_agents(agents: &[AgentConfig]) -> Result<(), String> {
                     agent.name
                 ));
             }
+        if let Some(ref runtime) = agent.runtime {
+            match runtime.as_str() {
+                "claude-code" => {}
+                other => {
+                    return Err(format!(
+                        "Agent '{}': unknown runtime '{other}'. Supported: 'claude-code'",
+                        agent.name
+                    ));
+                }
+            }
+        }
     }
     Ok(())
 }
@@ -792,6 +809,43 @@ name = "coder-1"
         assert_eq!(config.max_coders, Some(3));
     }
 
+    // ── runtime config ────────────────────────────────────────────────
+
+    #[test]
+    fn runtime_defaults_to_none() {
+        let toml_str = r#"
+[[agent]]
+name = "coder"
+"#;
+        let config = ProjectConfig::parse(toml_str).unwrap();
+        assert_eq!(config.agent[0].runtime, None);
+    }
+
+    #[test]
+    fn runtime_claude_code_accepted() {
+        let toml_str = r#"
+[[agent]]
+name = "coder"
+runtime = "claude-code"
+"#;
+        let config = ProjectConfig::parse(toml_str).unwrap();
+        assert_eq!(
+            config.agent[0].runtime,
+            Some("claude-code".to_string())
+        );
+    }
+
+    #[test]
+    fn runtime_unknown_rejected() {
+        let toml_str = r#"
+[[agent]]
+name = "coder"
+runtime = "openai"
+"#;
+        let err = ProjectConfig::parse(toml_str).unwrap_err();
+        assert!(err.contains("unknown runtime 'openai'"));
+    }
+
     #[test]
     fn project_toml_has_three_sonnet_coders() {
         let manifest_dir = std::path::Path::new(env!("CARGO_MANIFEST_DIR"));