fix(sessions): purge deleted transcript archives

src/config/sessions/store.ts

@@ -1,11 +1,15 @@
 import crypto from "node:crypto";
 import fs from "node:fs";
 import path from "node:path";
-import { acquireSessionWriteLock } from "../../agents/session-write-lock.js";
 import type { MsgContext } from "../../auto-reply/templating.js";
+import type { SessionMaintenanceConfig, SessionMaintenanceMode } from "../types.base.js";
+import { acquireSessionWriteLock } from "../../agents/session-write-lock.js";
 import { parseByteSize } from "../../cli/parse-bytes.js";
 import { parseDurationMs } from "../../cli/parse-duration.js";
-import { archiveSessionTranscripts } from "../../gateway/session-utils.fs.js";
+import {
+  archiveSessionTranscripts,
+  cleanupArchivedSessionTranscripts,
+} from "../../gateway/session-utils.fs.js";
 import { createSubsystemLogger } from "../../logging/subsystem.js";
 import {
   deliveryContextFromSession,
@@ -16,7 +20,6 @@ import {
 } from "../../utils/delivery-context.js";
 import { getFileMtimeMs, isCacheEnabled, resolveCacheTtlMs } from "../cache-utils.js";
 import { loadConfig } from "../config.js";
-import type { SessionMaintenanceConfig, SessionMaintenanceMode } from "../types.base.js";
 import { deriveSessionMetaPatch } from "./metadata.js";
 import { mergeSessionEntry, type SessionEntry } from "./types.js";
 
@@ -538,13 +541,24 @@ async function saveSessionStoreUnlocked(
         },
       });
       capEntryCount(store, maintenance.maxEntries);
+      const archivedDirs = new Set<string>();
       for (const [sessionId, sessionFile] of prunedSessionFiles) {
-        archiveSessionTranscripts({
+        const archived = archiveSessionTranscripts({
           sessionId,
           storePath,
           sessionFile,
           reason: "deleted",
         });
+        for (const archivedPath of archived) {
+          archivedDirs.add(path.dirname(archivedPath));
+        }
+      }
+      if (archivedDirs.size > 0) {
+        await cleanupArchivedSessionTranscripts({
+          directories: [...archivedDirs],
+          olderThanMs: maintenance.pruneAfterMs,
+          reason: "deleted",
+        });
       }
 
       // Rotate the on-disk file if it exceeds the size threshold.