feat(scenario): run logs, lint/format tooling, CONTRIBUTING

- add ScenarioRunLogEntity to persist step script output to DB
- stepLogger dual-writes to NestJS logger and DB (fire-and-forget)
- add GET /scenarios/:id/run/:runId returning run, stepRuns and logs
- add POST /scenarios/:id/run/:runId/wait (polls until terminal state)
- 9 new integration tests for the two endpoints (136 total)
- add eslint with typescript-eslint and eslint-config-prettier
- add npm scripts: format, lint, lint:fix
- resolve all lint errors across src and test (no any types)
- add CONTRIBUTING.md covering dev workflow

src/environment/environment.entity.ts

@@ -4,7 +4,7 @@ import {
   Column,
   CreateDateColumn,
   UpdateDateColumn,
-} from 'typeorm';
+} from "typeorm";
 
 export interface EnvironmentUrls {
   id_url?: string;
@@ -13,7 +13,7 @@ export interface EnvironmentUrls {
   [key: string]: string | undefined;
 }
 
-@Entity('environments')
+@Entity("environments")
 export class EnvironmentEntity {
   @PrimaryGeneratedColumn()
   id: number;
@@ -21,7 +21,7 @@ export class EnvironmentEntity {
   @Column({ unique: true })
   name: string;
 
-  @Column('simple-json')
+  @Column("simple-json")
   urls: EnvironmentUrls;
 
   @CreateDateColumn()