fix(dashboard): update sync card after completion + use Bucharest timezone

Sync card was showing previous run data after sync completed because the
last_run query excluded the current run_id even after it finished. Now only
excludes during active running state.

All datetime.now() and SQLite datetime('now') replaced with Europe/Bucharest
timezone to fix times displayed 2 hours behind (was using UTC).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/app/routers/sync.py

@@ -68,12 +68,14 @@ async def sync_status():
 
     # Build last_run from most recent completed/failed sync_runs row
     current_run_id = status.get("run_id")
+    is_running = status.get("status") == "running"
     last_run = None
     try:
         from ..database import get_sqlite
         db = await get_sqlite()
         try:
-            if current_run_id:
+            if current_run_id and is_running:
+                # Only exclude current run while it's actively running
                 cursor = await db.execute("""
                     SELECT * FROM sync_runs
                     WHERE status IN ('completed', 'failed') AND run_id != ?