fix: add missing formatDateTime import in SearchManager

The get_context_timeline mem-search function was broken due to
formatDateTime being used but not imported from timeline-formatting.ts.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.claude-plugin/marketplace.json

@@ -10,7 +10,7 @@
   "plugins": [
     {
       "name": "claude-mem",
-      "version": "7.4.4",
+      "version": "7.4.5",
       "source": "./plugin",
       "description": "Persistent memory system for Claude Code - context compression across sessions"
     }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "claude-mem",
-  "version": "7.4.4",
+  "version": "7.4.5",
   "description": "Memory compression system for Claude Code - persist context across sessions",
   "keywords": [
     "claude",

plugin/.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "claude-mem",
-  "version": "7.4.4",
+  "version": "7.4.5",
   "description": "Persistent memory system for Claude Code - seamlessly preserve context across sessions",
   "author": {
     "name": "Alex Newman"

src/services/worker/SearchManager.ts

@@ -14,7 +14,7 @@ import { FormattingService } from './FormattingService.js';
 import { TimelineService, TimelineItem } from './TimelineService.js';
 import { ObservationSearchResult, SessionSummarySearchResult, UserPromptSearchResult } from '../sqlite/types.js';
 import { logger } from '../../utils/logger.js';
-import { formatDate, formatTime, extractFirstFile, groupByDate, estimateTokens } from '../../shared/timeline-formatting.js';
+import { formatDate, formatTime, formatDateTime, extractFirstFile, groupByDate, estimateTokens } from '../../shared/timeline-formatting.js';
 
 const COLLECTION_NAME = 'cm__claude-mem';
 const RECENCY_WINDOW_DAYS = 90;