first round of review

backend/validation.py

@@ -1,5 +1,4 @@
 """Validation utilities for user profile fields."""
-import re
 from email_validator import validate_email, EmailNotValidError
 from bech32 import bech32_decode
 
@@ -25,7 +24,7 @@ def validate_telegram(value: str | None) -> str | None:
     """
     Validate Telegram handle.
     
-    Must start with @ if provided.
+    Must start with @ if provided, with 1-32 characters after @.
     Returns None if valid, error message if invalid.
     Empty/None values are valid (field is optional).
     """
@@ -35,21 +34,13 @@ def validate_telegram(value: str | None) -> str | None:
     if not value.startswith("@"):
         return "Telegram handle must start with @"
     
-    if len(value) < 2:
-        return "Telegram handle must have at least one character after @"
-    
-    # Telegram usernames: 5-32 characters, alphanumeric and underscores
-    # But we store with @, so check 6-33 total
     handle = value[1:]  # Remove @
-    if len(handle) < 5:
-        return "Telegram handle must be at least 5 characters (after @)"
+    if len(handle) < 1:
+        return "Telegram handle must have at least one character after @"
     
     if len(handle) > 32:
         return "Telegram handle must be at most 32 characters (after @)"
     
-    if not re.match(r'^[a-zA-Z][a-zA-Z0-9_]*$', handle):
-        return "Telegram handle must start with a letter and contain only letters, numbers, and underscores"
-    
     return None