Terms of Bailout Vague on How Reluctant Koreans Will Enforce It
International Monetary Fund deal to bail out South Korea contains vague provisions that are raising doubts about how it will be enforced; presidential candidate Kim Dae Jung says he might renegotiate deal, reversing earlier pledge to honor it; pressure is building for prosecution of Government officials deemed to have mismanaged economy; Halla Group, nation's 12th-largest conglomerate, is declared insolvent by its main creditor, Korea Exchange Bank, and seeks bankruptcy protection for two units (M)