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Marvin Jones
960bdfbb33
Program-as-Account migration, first slice: V03State.programs becomes HashMap<AccountId, Account> instead of HashMap<ProgramId, Program>, with the elf held directly in Account.data. The map key is derived from ProgramId via a new 1:1 From<ProgramId> for AccountId conversion (both types are exactly 32 bytes) rather than a hash, since ProgramId is already content-derived from the elf. Account.program_owner stays ProgramId-typed everywhere - this only changes how deployed programs are stored and looked up host-side, not the dispatch/authorization model any guest program logic depends on. Dispatch resolves a ChainedCall's program_id by converting to AccountId, fetching the Account, and reconstructing a Program via new_unchecked for execution. DATA_MAX_LENGTH is raised from 100 KiB to 700 KiB to fit real program elfs (observed 375 KB-631 KB) directly in Account.data; noted in its docstring as a rough placeholder pending real transaction/block-size budget analysis.