Add statement_cache_size parameter to allow connections to Supabase

[NolanTrem]

Important

Adds statement_cache_size parameter to database configuration for Supabase compatibility and removes deprecated environment variable support.

• Behavior:
  • Adds statement_cache_size parameter to PostgresConfigurationSettings in database.py.
  • Updates PostgresConnectionManager in base.py to use statement_cache_size when creating connection pools.
  • Handles DuplicatePreparedStatementError in fetch_query() in base.py by suggesting configuration changes.
• Environment Variables:
  • Removes deprecated environment variable support in compose.full.yaml for POSTGRES_USER, POSTGRES_PASSWORD, POSTGRES_HOST, POSTGRES_PORT, and POSTGRES_MAX_CONNECTIONS.
• Misc:
  • Updates _get_postgres_configuration_settings() in postgres.py to include statement_cache_size.
  • Removes escape_braces() function from database.py.

^{This description was created by for 1adc227. It will automatically update as commits are pushed.}

[ellipsis-dev]

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[ellipsis-dev]

Consider adding validation for statement_cache_size in the _get_postgres_configuration_settings method to ensure it has a valid value. This will prevent potential issues if the environment variable is not set or if the value is invalid.