refactor: replace tokens_module with sessions_module in export

[pyramation]

refactor: replace tokens_module with sessions_module in export

Summary

Updates the export functionality to use the new sessions_module instead of the deprecated tokens_module. This is part of the session-centric auth migration where all authentication tokens now live in session_credentials table instead of api_tokens.

Changes:

• Replace tokens_module with sessions_module in tableOrder array (export-migrations.ts)
• Replace tokens_module config with sessions_module config with new field structure (export-meta.ts)
• Replace tokens_table_id with sessions_table_id and session_credentials_table_id in rls_module config
• Replace tokens_table_id with sessions_table_id and session_credentials_table_id in user_auth_module config (also added missing audits_table_id, audits_table_name, verify_password_function, check_password_function)
• Replace tokens_table_id with sessions_table_id and session_credentials_table_id in crypto_auth_module config

Review & Testing Checklist for Human

• Verify dependent PRs are merged first: This requires constructive-db PR #458 and pgpm-modules PR #39 to be merged, otherwise exports will fail
• Verify field configs match actual table schemas: Compare the fields in rls_module, user_auth_module, crypto_auth_module, and sessions_module configs against the actual table definitions in constructive-db to ensure they match exactly
• Test an actual export: Run generate:constructive or similar export command after dependent PRs are merged to verify the export works end-to-end

Notes

• The test file packages/csv-to-pg/__tests__/export.test.ts still uses tokens_module as an example table name for parser tests - this is just a test fixture and doesn't affect functionality
• The __fixtures__/output/schemas/services_public.ts file will need to be regenerated after the dependent PRs are merged

Link to Devin run: https://app.devin.ai/sessions/d30b2724020f43f6b94865bbd5cf71c6
Requested by: Dan Lynch (@pyramation)

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