CSVHandler parseCSV() breaks on quoted fields with commas

[aliAljaffer]

As a developer
I want proper CSV parsing that handles quoted fields
So that CSV files are parsed correctly

Current Behavior

Naive split on commas breaks fields like "Smith, John".

Location: src/java/CSVHandler.java line 14

Expected Behavior

Handle CSV quoting rules properly.

Acceptance Criteria

• Use proper CSV parsing library (OpenCSV)
• Handle quoted fields with commas
• Handle escaped quotes
• Add test with complex CSV

Example Issue

name,address
"Smith, John","123 Main St"

Gets split incorrectly into 3 fields instead of 2.