Clear errors on settings tab switch, streamline message mark-as-read, don't resort on render

app/repository.py

@@ -183,6 +183,11 @@ class ContactRepository:
         await db.conn.commit()
         return cursor.rowcount > 0
 
+    @staticmethod
+    async def mark_all_read(timestamp: int) -> None:
+        """Mark all contacts as read at the given timestamp."""
+        await db.conn.execute("UPDATE contacts SET last_read_at = ?", (timestamp,))
+
     @staticmethod
     async def get_by_pubkey_first_byte(hex_byte: str) -> list[Contact]:
         """Get contacts whose public key starts with the given hex byte (2 chars)."""
@@ -269,6 +274,11 @@ class ChannelRepository:
         await db.conn.commit()
         return cursor.rowcount > 0
 
+    @staticmethod
+    async def mark_all_read(timestamp: int) -> None:
+        """Mark all channels as read at the given timestamp."""
+        await db.conn.execute("UPDATE channels SET last_read_at = ?", (timestamp,))
+
 
 class MessageRepository:
     @staticmethod

app/routers/read_state.py

@@ -7,7 +7,7 @@ from fastapi import APIRouter, Query
 
 from app.database import db
 from app.models import UnreadCounts
-from app.repository import MessageRepository
+from app.repository import ChannelRepository, ContactRepository, MessageRepository
 
 logger = logging.getLogger(__name__)
 router = APIRouter(prefix="/read-state", tags=["read-state"])
@@ -35,9 +35,8 @@ async def mark_all_read() -> dict:
     """
     now = int(time.time())
 
-    # Update all contacts and channels in one transaction
-    await db.conn.execute("UPDATE contacts SET last_read_at = ?", (now,))
-    await db.conn.execute("UPDATE channels SET last_read_at = ?", (now,))
+    await ContactRepository.mark_all_read(now)
+    await ChannelRepository.mark_all_read(now)
     await db.conn.commit()
 
     logger.info("Marked all contacts and channels as read at %d", now)