storkit: merge 345_story_gemini_agent_backend_via_google_ai_api

server/src/agents/runtime/mod.rs

@@ -1,6 +1,8 @@
 mod claude_code;
+mod gemini;
 
 pub use claude_code::ClaudeCodeRuntime;
+pub use gemini::GeminiRuntime;
 
 use std::sync::{Arc, Mutex};
 use tokio::sync::broadcast;
@@ -18,6 +20,9 @@ pub struct RuntimeContext {
     pub prompt: String,
     pub cwd: String,
     pub inactivity_timeout_secs: u64,
+    /// Port of the storkit MCP server, used by API-based runtimes (Gemini, OpenAI)
+    /// to call back for tool execution.
+    pub mcp_port: u16,
 }
 
 /// Result returned by a runtime after the agent session completes.
@@ -85,6 +90,7 @@ mod tests {
             prompt: "Do the thing".to_string(),
             cwd: "/tmp/wt".to_string(),
             inactivity_timeout_secs: 300,
+            mcp_port: 3001,
         };
         assert_eq!(ctx.story_id, "42_story_foo");
         assert_eq!(ctx.agent_name, "coder-1");
@@ -93,6 +99,7 @@ mod tests {
         assert_eq!(ctx.prompt, "Do the thing");
         assert_eq!(ctx.cwd, "/tmp/wt");
         assert_eq!(ctx.inactivity_timeout_secs, 300);
+        assert_eq!(ctx.mcp_port, 3001);
     }
 
     #[test]