Session-specific configuration access

Always access configuration through the appropriate session context rather than using global configuration access. This ensures that session-specific settings are respected and maintains consistency across different execution contexts.

Why this matters:

• Different Spark sessions may have different configuration values
• Global configuration access can ignore session-specific overrides
• Proper session context ensures configuration consistency

Preferred patterns:

1. Pass SQLConf instances explicitly: ```scala // Instead of accessing global config val maxStringLen = SQLConf.get.getConf(SQLConf.JSON_MAX_STRING_LENGTH)

// Pass SQLConf instance to constructors class JSONOptions(parameters: Map[String, String], sqlConf: SQLConf) { private val maxStringLen = sqlConf.getConf(SQLConf.JSON_MAX_STRING_LENGTH) }

2. **Access config through SparkSession:**
```scala
// Instead of using global SQLConf.get
val shuffleCleanupMode = determineShuffleCleanupMode(SQLConf.get)

// Use session-specific configuration
val shuffleCleanupMode = determineShuffleCleanupMode(sparkSession.sessionState.conf)

1. Use session timezone settings: ```scala // Instead of hardcoded UTC or assumptions val zoneId = UTC

// Use session-specific timezone val zoneId = DateTimeUtils.getZoneId(SQLConf.get.sessionLocalTimeZone) ```

This pattern follows established practices in components like ParquetOptions and ensures that configuration behavior is predictable and respects user-specified session settings.