refactor: add session and environment relationships to scenario run

- add sessionId optional column to ScenarioRunEntity
- add ManyToOne relationship to EnvironmentEntity (with eager loading)
- add ManyToOne relationship to SessionEntity (optional)
- update ScenarioRun client types to include session and environment data
- add environment name and session link to RunDetailPage
- update UI to display save session, environment, and session info

server/src/mcp/mcp.service.ts

@@ -703,7 +703,7 @@ export class McpService {
         inputSchema: {
           id: z.uuid().describe("Scenario ID to run"),
           environmentId: z.uuid().describe("Environment ID to run the scenario in"),
-          saveSession: z.boolean().optional().describe("Save session for explore mode after run completes"),
+          saveSession: z.boolean().optional().describe("Save session after run completes"),
         },
       },
       async ({ id, environmentId, saveSession }) => {

server/src/scenario/scenario-run.entity.ts

@@ -10,6 +10,8 @@ import {
 } from "typeorm";
 import { ScenarioRunStepEntity } from "./scenario-run-step.entity";
 import { ScenarioEntity } from "./scenario.entity";
+import { EnvironmentEntity } from "../environment/environment.entity";
+import { SessionEntity } from "../session/session.entity";
 
 export type RunStatus = "pending" | "in_progress" | "pass" | "fail";
 
@@ -28,6 +30,17 @@ export class ScenarioRunEntity {
   @JoinColumn({ name: "scenarioId" })
   scenario: ScenarioEntity;
 
+  @ManyToOne(() => EnvironmentEntity, { onDelete: "SET NULL", nullable: true })
+  @JoinColumn({ name: "environmentId" })
+  environment: EnvironmentEntity;
+
+  @Column("text", { nullable: true, default: null })
+  sessionId: string | null;
+
+  @ManyToOne(() => SessionEntity, { onDelete: "SET NULL", nullable: true })
+  @JoinColumn({ name: "sessionId" })
+  session: SessionEntity | null;
+
   @Column({ type: "text", default: "pending" })
   status: RunStatus;