diff --git a/1.1-TODO.md b/1.1-TODO.md
index 064ab56..2d222d1 100644
--- a/1.1-TODO.md
+++ b/1.1-TODO.md
@@ -1,89 +1,88 @@
-# 1.1-TODO
-
----
-
-## Already Implemented
-
-### Authentication & Security
-
-- [x] JWT-based login/logout
-- [x] Token blacklist for logout
-- [x] Brute-force protection using RateLimiter
-- [x] HTTPS enforced in Spring Security
-- [x] `User` entity implementing `UserDetails`
-- [x] Secure password storage using encoder
-- [x] Strong AES + RSA hybrid file encryption
-- [x] Encrypted RSA private key stored with salt & IV
-- [x] Public RSA key stored per user
-- [x] AES key generated per file upload
-
-### Encryption & Decryption
-
-- [x] RSA-encrypted AES key prepended to file
-- [x] Private key decrypted with password-derived AES key
-- [x] File decrypted using AES key after RSA unwrap
-
-### HDFS Integration
-
-- [x] File upload to HDFS
-- [x] File download from HDFS
-- [x] Folder creation, file/folder deletion
-- [x] List files and folders recursively
-
----
-
-## Partially Done or In Progress
-
-### Refresh Token Support
-
-- [ ] Refresh token mechanism (JWT renewal without re-login)
-
-  - Partially mentioned, but not yet implemented
-
-### Caching Decrypted Private Keys
-
-- [ ] Server-side caching of decrypted private key post-login
-
-  - To avoid decrypting private key on every download
-  - Should auto-clear on logout or token expiry
-
----
-
-## Still Pending or Not Implemented
-
-### Input Validation
-
-- [ ] Username validation: must be alphanumeric
-- [ ] Strong password policy: check against HaveIBeenPwned API
-- [ ] File extension and path validation before HDFS operations
-
-### Secret Key Management
-
-- [ ] Move JWT secret & encryption secrets to `.env` or Spring config (externalized config for production)
-- [ ] Ensure secret key is 32-byte base64 (already discussed but may need verifying)
-
-### Miscellaneous
-
-- [ ] Clean up obsolete code and files (e.g., old encryption logic, unused fields/methods)
-- [ ] Unit & integration tests for:
-
-  - Auth
-  - Encryption logic
-  - HDFS controller
-- [ ] Error handling standardization across services
-
----
-
-## Future Scope
-
-### User Features
-
-- [ ] User profile update API (change fullname/password)
-- [ ] Password reset (email or security question-based)
-
-### File Features
-
-- [ ] View/download logs per file (audit trail)
-- [ ] File versioning or tagging
-
----
+# 1.1-TODO
+
+---
+
+## Already Implemented
+
+### Authentication & Security
+
+- [x] JWT-based login/logout
+- [x] Token blacklist for logout
+- [x] Brute-force protection using RateLimiter
+- [x] HTTPS enforced in Spring Security
+- [x] `User` entity implementing `UserDetails`
+- [x] Secure password storage using encoder
+- [x] Strong AES + RSA hybrid file encryption
+- [x] Encrypted RSA private key stored with salt & IV
+- [x] Public RSA key stored per user
+- [x] AES key generated per file upload
+
+### Encryption & Decryption
+
+- [x] RSA-encrypted AES key prepended to file
+- [x] Private key decrypted with password-derived AES key
+- [x] File decrypted using AES key after RSA unwrap
+
+### HDFS Integration
+
+- [x] File upload to HDFS
+- [x] File download from HDFS
+- [x] Folder creation, file/folder deletion
+- [x] List files and folders recursively
+
+---
+
+## Done 👍
+### Refresh Token Support
+
+- [x] Refresh token mechanism (JWT renewal without re-login)
+
+  - Partially mentioned, but not yet implemented
+
+### Caching Decrypted Private Keys
+
+- [x] Server-side caching of decrypted private key post-login
+
+  - To avoid decrypting private key on every download
+  - Should auto-clear on logout or token expiry
+
+---
+
+## Still Pending or Not Implemented
+
+### Input Validation
+
+- [ ] Username validation: must be alphanumeric
+- [ ] Strong password policy: check against HaveIBeenPwned API
+- [ ] File extension and path validation before HDFS operations
+
+### Secret Key Management
+
+- [ ] Move JWT secret & encryption secrets to `.env` or Spring config (externalized config for production)
+- [ ] Ensure secret key is 32-byte base64 (already discussed but may need verifying)
+
+### Miscellaneous
+
+- [ ] Clean up obsolete code and files (e.g., old encryption logic, unused fields/methods)
+- [ ] Unit & integration tests for:
+
+  - Auth
+  - Encryption logic
+  - HDFS controller
+- [ ] Error handling standardization across services
+
+---
+
+## Future Scope
+
+### User Features
+
+- [ ] User profile update API (change fullname/password)
+- [ ] Password reset (email or security question-based)
+
+### File Features
+
+- [ ] View/download logs per file (audit trail)
+- [ ] File versioning or tagging
+
+---