update_mint_params

Updates mint-related parameters stored in GLAM state, subject to access control and timelock rules.

Handler narrative

Load the GLAM state or program account required by the instruction and verify the signer.
Apply the requested state, policy, pricing, or system action after enforcing owner/delegate checks.

The submitted accounts must match the declared account list, signer requirements, writable requirements, fixed program addresses, and account relationships shown below.
The GLAM state account is the source of truth for owner, enabled integrations, delegate permissions, policies, assets, borrowable assets, timelock settings, mint linkage, and pricing records.
Owner-level actions must be signed by the state owner unless the instruction is explicitly an integration callback, mint-authority callback, delegate action, or emergency access update.
Configuration changes must pass owner or authorized-manager checks and, when the state or mint timelock is active, must follow the propose/apply timing model instead of taking effect immediately.

Account	Role	Description
glam_state	writable	State account owned by the GLAM Protocol program; it records vault configuration, policies, and pricing records.
glam_signer	signer, writable	Calling authority. It must be the owner or a delegate with the explicit permission required by this instruction.

Argument	Type	Notes
params	vec<EngineField>	List of mint engine fields to update; sensitive updates may follow the mint timelock path. Fields: `name: EngineFieldName`; `value: EngineFieldValue`

No external integration enablement is required beyond the program-level functionality involved in this instruction.
Only the owner is expected. Delegates do not receive this capability by being added; it must be granted explicitly if supported.

No additional cross-instruction constraint is documented beyond account initialization, authority checks, and policy validation.