Council support

[thelostone-mc]

• Add CouncilExecutor with AccessManager support
• Adds CouncilExecutor and deployment scripts for council governance.

Use case:
Multiple council governors need to schedule and execute proposals through the same Compound timelock via the shim.

Proposal lifecycle flow:
CouncilGovernor → VetoGovernor → CouncilExecutor → Shim → CompoundTimelock

Note:

• VetoGovernor uses OZ-style governance while the shim uses Compound-style.
• CouncilExecutor bridges compatibility between the two.

Architecture:

• All CouncilExecutors must be whitelisted as trusted executors on the Shim
• All CouncilExecutors share a single AccessManager
• Each CouncilExecutor must be configured with allowed (target, selector) pairs

Scripts:

• 4_DeployAccessManager.s.sol - Deploy shared AccessManager (once)
• 5_DeployCouncilExecutor.s.sol - Deploy CouncilExecutor (per governor)
• And then configure access on AccessManager

[github-actions]

Coverage after merging council-support into main will be

77.50%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
src
CouncilExecutor.sol	0%	0%	0%	0%	106, 116, 116–117, 120, 129, 138, 138–139, 142, 150, 157, 160, 160–161, 165–166, 169, 171, 173, 175, 180, 183, 183–184, 188, 191, 196, 203, 206–207, 209, 209–210, 214, 214–215, 219, 219–220, 224–226, 230, 230–231, 235, 238, 238–239, 244, 252–253, 256, 256–257, 260, 263, 266, 269, 277–278, 280, 280–281, 71–72, 72–73, 82–83, 86–87, 96–97
RollbackManager.sol	100%	100%	100%	100%
RollbackManagerTimelockCompound.sol	100%	100%	100%	100%
RollbackManagerTimelockControl.sol	100%	100%	100%	100%
TimelockMultiAdminShim.sol	100%	100%	100%	100%