RealDictCursor returns dicts, not tuples. Cannot use [0] for index access.
Changed all COUNT(*) to COUNT(*) as count and access via ['count'].
Fixes: KeyError: 0 on cur.fetchone()[0]
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
All conn.cursor() calls replaced with get_cursor(conn) to enable
dict-like row access (prof['pin_hash'] instead of prof[column_index]).
This fixes KeyError when accessing PostgreSQL query results.
Fixes: 'tuple' object has no attribute '__getitem__' with string keys
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>