fix(scenario-logs): fix out-of-order run log persistence

- Add seq column assigned in call order to fix logs racing each other
  as fire-and-forget writes (e.g. a snippet's "started" entry could be
  saved after its "finished" entry)
- Log snippet start/finish/failure via context.runSnippet, matching
  existing step start/pass/fail logging
- Rework Markdown log export to per-entry sections instead of a table
- Version bump: 1.10.0 -> 1.10.1

server/src/code-executor/code-executor.service.ts

@@ -199,6 +199,7 @@ export class CodeExecutorService {
           if (snippetCode == null) {
             throw new Error(`Snippet alias "${alias}" not found`);
           }
+          scriptLog("log", `Snippet "${alias}" started`);
           const snippetFn = new Function(
             "context",
             "console",
@@ -206,7 +207,22 @@ export class CodeExecutorService {
             "expect",
             `return (async (context, ...args) => { ${snippetCode} })(context, ...snippetArgs)`,
           );
-          return snippetFn(scriptContext, fakeConsole, args, playwrightExpect);
+          try {
+            const snippetResult = await snippetFn(
+              scriptContext,
+              fakeConsole,
+              args,
+              playwrightExpect,
+            );
+            scriptLog("log", `Snippet "${alias}" finished`);
+            return snippetResult;
+          } catch (err) {
+            scriptLog(
+              "error",
+              `Snippet "${alias}" failed: ${(err as Error).message}`,
+            );
+            throw err;
+          }
         },
         getScenarioFiles: async (opts?: { limit?: number; offset?: number }) => {
           if (!fileService || !scenarioId) {

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

@@ -39,6 +39,11 @@ export class ScenarioRunLogEntity {
   @Column({ type: "text" })
   message: string;
 
+  // Assigned in call order per run, since concurrent unawaited writes can
+  // otherwise persist out of order (createdAt alone isn't a reliable tiebreaker).
+  @Column({ type: "int", default: 0 })
+  seq: number;
+
   @CreateDateColumn()
   createdAt: Date;
 }

server/src/scenario/scenario-scheduler.service.ts

@@ -46,6 +46,9 @@ export class ScenarioSchedulerService implements OnModuleInit {
   private readonly runScenarioTimeouts = new Map<string, number | null>();
   // Cache scenarioId per run
   private readonly runScenarioIds = new Map<string, string>();
+  // Monotonic log sequence per run, since persistLog writes are unawaited and
+  // can otherwise resolve out of call order
+  private readonly runLogSeq = new Map<string, number>();
 
   private static readonly DEFAULT_SCENARIO_TIMEOUT_SEC = 600;
   private static readonly DEFAULT_STEP_TIMEOUT_SEC = 60;
@@ -138,8 +141,10 @@ export class ScenarioSchedulerService implements OnModuleInit {
     level: "log" | "warn" | "error",
     message: string,
   ): void {
+    const seq = (this.runLogSeq.get(runId) ?? 0) + 1;
+    this.runLogSeq.set(runId, seq);
     void this.runLogRepo.save(
-      this.runLogRepo.create({ runId, stepRunId, level, message }),
+      this.runLogRepo.create({ runId, stepRunId, level, message, seq }),
     );
   }
 
@@ -216,6 +221,7 @@ export class ScenarioSchedulerService implements OnModuleInit {
                 this.runEnvironments.delete(run.id);
                 this.runScenarioTimeouts.delete(run.id);
                 this.runScenarioIds.delete(run.id);
+                this.runLogSeq.delete(run.id);
                 this.logger.error(
                   `Run #${run.id}: setup failed — ${String(err)}`,
                 );
@@ -279,6 +285,7 @@ export class ScenarioSchedulerService implements OnModuleInit {
       this.runEnvironments.delete(runId);
       this.runScenarioTimeouts.delete(runId);
       this.runScenarioIds.delete(runId);
+      this.runLogSeq.delete(runId);
       await this.maybePreserveSession(runId);
     }
   }

server/src/scenario/scenario.service.ts

@@ -402,7 +402,7 @@ export class ScenarioService {
       );
     const logs = await this.runLogRepo.find({
       where: q?.trim() ? { runId, message: Like(`%${q.trim()}%`) } : { runId },
-      order: { createdAt: "ASC" },
+      order: { seq: "ASC", createdAt: "ASC" },
     });
     return Object.assign(run, { logs });
   }
@@ -422,7 +422,7 @@ export class ScenarioService {
       );
     const logs = await this.runLogRepo.find({
       where: { runId },
-      order: { createdAt: "ASC" },
+      order: { seq: "ASC", createdAt: "ASC" },
     });
 
     if (format === "csv") {
@@ -439,17 +439,10 @@ export class ScenarioService {
       return rows.join("\n");
     }
 
-    const lines = [
-      `# Run ${runId} logs`,
-      "",
-      "| Timestamp | Level | Message |",
-      "| --- | --- | --- |",
-      ...logs.map(
-        (l) =>
-          `| ${l.createdAt.toISOString()} | ${l.level} | ${l.message.replace(/\|/g, "\\|").replace(/\n/g, "<br>")} |`,
-      ),
-    ];
-    return lines.join("\n");
+    const sections = logs.map(
+      (l) => `## [${l.level}] ${l.createdAt.toISOString()}\n\n${l.message}`,
+    );
+    return [`# Run ${runId} logs`, ...sections].join("\n\n");
   }
 
   async waitForRun(