diff --git a/codewiki/src/fe/models.py b/codewiki/src/fe/models.py
index 253d7369..e16134e1 100644
--- a/codewiki/src/fe/models.py
+++ b/codewiki/src/fe/models.py
@@ -4,7 +4,7 @@
 """
 
 from datetime import datetime
-from typing import Optional
+from typing import Optional, Any, Dict
 from dataclasses import dataclass
 from pydantic import BaseModel, HttpUrl
 
@@ -44,6 +44,42 @@ class JobStatus:
     main_model: Optional[str] = None
     commit_id: Optional[str] = None
 
+    def to_dict(self) -> Dict[str, Any]:
+        """Serialize this JobStatus to a plain dict."""
+        return {
+            "job_id": self.job_id,
+            "repo_url": self.repo_url,
+            "status": self.status,
+            "created_at": self.created_at.isoformat() if self.created_at else None,
+            "started_at": self.started_at.isoformat() if self.started_at else None,
+            "completed_at": self.completed_at.isoformat() if self.completed_at else None,
+            "error_message": self.error_message,
+            "progress": self.progress,
+            "docs_path": self.docs_path,
+            "main_model": self.main_model,
+            "commit_id": self.commit_id,
+        }
+
+    @classmethod
+    def from_dict(cls, data: Dict[str, Any]) -> "JobStatus":
+        """Deserialize a JobStatus from a plain dict."""
+        created_at = data.get("created_at")
+        started_at = data.get("started_at")
+        completed_at = data.get("completed_at")
+        return cls(
+            job_id=data["job_id"],
+            repo_url=data["repo_url"],
+            status=data["status"],
+            created_at=datetime.fromisoformat(created_at) if isinstance(created_at, str) else created_at,
+            started_at=datetime.fromisoformat(started_at) if isinstance(started_at, str) else started_at,
+            completed_at=datetime.fromisoformat(completed_at) if isinstance(completed_at, str) else completed_at,
+            error_message=data.get("error_message"),
+            progress=data.get("progress", ""),
+            docs_path=data.get("docs_path"),
+            main_model=data.get("main_model"),
+            commit_id=data.get("commit_id"),
+        )
+
 
 @dataclass
 class CacheEntry:
@@ -52,4 +88,27 @@ class CacheEntry:
     repo_url_hash: str
     docs_path: str
     created_at: datetime
-    last_accessed: datetime
\ No newline at end of file
+    last_accessed: datetime
+
+    def to_dict(self) -> Dict[str, Any]:
+        """Serialize this CacheEntry to a plain dict."""
+        return {
+            "repo_url": self.repo_url,
+            "repo_url_hash": self.repo_url_hash,
+            "docs_path": self.docs_path,
+            "created_at": self.created_at.isoformat() if self.created_at else None,
+            "last_accessed": self.last_accessed.isoformat() if self.last_accessed else None,
+        }
+
+    @classmethod
+    def from_dict(cls, data: Dict[str, Any]) -> "CacheEntry":
+        """Deserialize a CacheEntry from a plain dict."""
+        created_at = data.get("created_at")
+        last_accessed = data.get("last_accessed")
+        return cls(
+            repo_url=data["repo_url"],
+            repo_url_hash=data["repo_url_hash"],
+            docs_path=data["docs_path"],
+            created_at=datetime.fromisoformat(created_at) if isinstance(created_at, str) else created_at,
+            last_accessed=datetime.fromisoformat(last_accessed) if isinstance(last_accessed, str) else last_accessed,
+        )