Freeze settings v2

[jgur-psyops]

To support arena, we added banks with frozen settings. After some consideration, we have determined that the pool administrator should be able to modify the deposit/borrow limits. Those settings are now configurable even on frozen pools.

Adds a floor to oracle_max_age that is in line with real-world observations of minimum oracle times for txes to actually resolve to avoid a too-low oracle time footgun that renders the pool mostly unusable.

Per discussion, the front end will also enforce the following requirements to be listed on Arena's visible pools:

• Frozen settings - true
• Asset/liability weights - within some mrgn-defined limits
• Deposit/Borrow limits - any, defaults to no cap
• Operational State - active
• Oracle - generated by mrgn (a user-generated or user-supplied oracle might be supported if we whitelist it individually, e.g. a sponsored feed)
• Interest rates - uses mrgn-defined defaults
• Insurance fees - zero (all losses are socialized)
• Group fees - within some mrgn-defined range
• Origination fees - within some mrgn-defined range
• Risk Tier - Collateral
• Asset Tag - Default
• Asset Value Init - no cap
• oracle age - mrgn-defined value (likely 1-2 minutes)
• Permissionless debt settlement - true
• emissions - full configurable, but will not appear on the Arena front end in v1

[jgur-psyops]

Ranges at launch per discussion:

• Config for stables and everything else (default)
• Asset weights for default-type positions: (0.9/0.95)
• Liability weights for default-type positions: (1.25/1.1)
• Origination fee: 50 bps to 1000 bps (0.5%-10%)
• Group fee (protocol_ir_rate): 0 to ~92% (9200 bps), alert over 25%, alert in more annoying way over 50% (the 92 is so with our program fee it doesn't go over 100)
• Interest rate: optimal 80%, plateau 10%, max 300%
• Other fee rates (everything else in interest config): 0
• Deposit/Borrow cap: defaults to the circulating supply (no cap essentially)
• oracle: if it's a mrgnfi main pool asset, dupe the main pool asset's oracle, otherwise make a new swb one
• swb oracle config settings: same as at mrgn
• max age: 60 for default, 300 for stables

Our program fee rate at this time is 7.5% (75bps), flat sol fee 150,000,000 lamports/pool

[k0beLeenders]

is protocolFixedFeeApr: 0.01 supposed to be 0.01 or 0 ?

[k0beLeenders]

could you help me with a description regarding these fees? @jgur-psyops @ecklein

[k0beLeenders]

also if an oracle exists in the marginfi main pool. The oracle setup, keys and maxAge will be used from those

are we okay with that @ecklein ?